{"title":"SPI NOR Flash Memory ICs — W25Q, MX25L, GD25Q Series","description":"\u003ch2\u003eSPI NOR Flash Memory ICs — W25Q, MX25L \u0026amp; GD25Q Series\u003c\/h2\u003e\n\n\u003cp\u003eSPI NOR flash memory ICs are the standard non-volatile storage solution for BIOS chips, router firmware, IoT devices, and embedded systems. Unlike NAND flash (used in SSDs and USB drives), NOR flash offers byte-addressable random read access, making it ideal for code execution (XIP — Execute In Place) and firmware storage. This collection covers the most widely used SPI NOR flash ICs from Winbond (W25Q series), Macronix (MX25L series), and GigaDevice (GD25Q series) — all in the standard SOP-8 package.\u003c\/p\u003e\n\n\u003ch3\u003eWinbond W25Q Series (Most Popular)\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eW25Q16 (2MB):\u003c\/strong\u003e Standard BIOS, basic router firmware, small embedded storage\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eW25Q32 (4MB):\u003c\/strong\u003e Most common BIOS size, ESP8266 firmware + SPIFFS, standard router firmware\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eW25Q64 (8MB):\u003c\/strong\u003e Larger BIOS images, ESP32 firmware + filesystem, higher-end routers\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eW25Q128 (16MB):\u003c\/strong\u003e Large BIOS, Teensy 4.1 external flash, complex embedded applications\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eW25Q512 (64MB):\u003c\/strong\u003e Maximum W25Q capacity — Teensy 4.1 audio sample storage, large data logging\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eMacronix MX25L Series\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMX25L3206E (4MB):\u003c\/strong\u003e Pin-compatible W25Q32 alternative — widely used in older BIOS and router boards\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eBreakout Modules\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCJMCU-2516 Module:\u003c\/strong\u003e W25Q16 on a 2.54mm breakout board — breadboard-friendly SPI flash for Arduino and ESP32\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSPI Flash Selection Guide\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBIOS replacement:\u003c\/strong\u003e Match the exact part number on the original chip (W25Q32, MX25L3206, etc.)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eESP8266 \/ ESP32:\u003c\/strong\u003e W25Q32 (4MB) for firmware + SPIFFS; W25Q128 (16MB) for large filesystem\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTeensy 4.1 external flash:\u003c\/strong\u003e W25Q128 (16MB) or W25Q512 (64MB) — solder to bottom of board\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRouter firmware:\u003c\/strong\u003e Match original chip — most common are W25Q32, W25Q64, MX25L3206\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eArduino SPI storage:\u003c\/strong\u003e CJMCU-2516 module (no SMD soldering required)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eAll SPI flash ICs are new, original Winbond\/Macronix\/GigaDevice parts in SOP-8 packages. 100,000 erase cycles, 20-year data retention.\u003c\/p\u003e","products":[{"product_id":"w25q64jv-64mbit-spi-serial-flash-memory-module","title":"W25Q64JV 64Mbit SPI Serial Flash Memory Module — 8MB","description":"\u003ch2\u003eW25Q64JV 64Mbit SPI Serial Flash Memory Module — 8MB\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eW25Q64JV SPI flash memory module\u003c\/strong\u003e provides \u003cstrong\u003e64Mbit (8MB) of non-volatile serial flash storage\u003c\/strong\u003e via SPI. Based on the \u003cstrong\u003eWinbond W25Q64JV\u003c\/strong\u003e chip, it supports \u003cstrong\u003estandard, dual, and quad SPI\u003c\/strong\u003e at up to \u003cstrong\u003e104MHz\u003c\/strong\u003e. Ideal for storing firmware, web server files, audio samples, and large data sets in Arduino, ESP32, and embedded system projects.\u003c\/p\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIC: \u003cstrong\u003eWinbond W25Q64JV\u003c\/strong\u003e | Capacity: \u003cstrong\u003e64Mbit (8MB)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eInterface: \u003cstrong\u003eSPI (Standard \/ Dual \/ Quad)\u003c\/strong\u003e | Speed: \u003cstrong\u003eup to 104MHz\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSupply voltage: \u003cstrong\u003e2.7–3.6V\u003c\/strong\u003e | Endurance: \u003cstrong\u003e100,000 erase\/write cycles\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eData retention: \u003cstrong\u003e20 years\u003c\/strong\u003e | Header: \u003cstrong\u003e2.54mm breadboard compatible\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eCompliance: \u003cstrong\u003eRoHS compliant\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Choose This?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e✅ \u003cstrong\u003e8MB capacity\u003c\/strong\u003e — store web server files, audio samples and large datasets\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eQuad SPI support\u003c\/strong\u003e — 4× faster than standard SPI for high-speed access\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003e100,000 write cycles\u003c\/strong\u003e — durable for frequent data logging\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eSPIFlash library compatible\u003c\/strong\u003e — simple Arduino integration\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eESP32 and ESP8266 external flash for web server files\u003c\/li\u003e\n\u003cli\u003eArduino firmware and data storage expansion\u003c\/li\u003e\n\u003cli\u003eAudio sample storage for DFPlayer and audio projects\u003c\/li\u003e\n\u003cli\u003eEmbedded system non-volatile data storage\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":45670788727019,"sku":"","price":11.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/W25Q64JV-64M-Bit-Serial-Flash-Module.jpg?v=1723009211"},{"product_id":"w25q128jv-128mbit-16mb-spi-nor-flash-memory-ic-teensy-4-1","title":"W25Q128JV 128Mbit (16MB) SPI NOR Flash Memory IC – For Teensy 4.1 \u0026 Embedded Systems","description":"\u003ch2\u003eW25Q128JV 128Mbit (16MB) SPI NOR Flash Memory IC – For Teensy 4.1 \u0026amp; Embedded Systems\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eW25Q128JV\u003c\/strong\u003e from Winbond is a 128Mbit (16MB) SPI NOR flash memory IC – the second-largest capacity in the standard W25Q series, and a popular choice for Teensy 4.1 external flash, large BIOS images, and complex embedded applications. With 133MHz SPI clock support, Quad SPI (QSPI) capability, and the same standard SOP-8 pinout as all W25Q series devices, it's pin-compatible with W25Q32, W25Q64, and W25Q512 for easy capacity upgrades.\u003c\/p\u003e\n\n\u003ch3\u003eElectrical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e W25Q128JV \/ W25Q128JVSIQ \/ W25Q128JVFIQ\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage:\u003c\/strong\u003e SOP-8 (SMD, 1.27mm pitch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 128Mbit = 16MB = 16,777,216 bytes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInterface:\u003c\/strong\u003e Standard SPI \/ Dual SPI \/ Quad SPI (QSPI)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClock Frequency:\u003c\/strong\u003e Up to 133MHz (standard SPI)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEffective Throughput (QSPI):\u003c\/strong\u003e Up to 532Mbps\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupply Voltage:\u003c\/strong\u003e 2.7V – 3.6V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePage Size:\u003c\/strong\u003e 256 bytes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSector Size:\u003c\/strong\u003e 4KB (individually erasable)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEndurance:\u003c\/strong\u003e 100,000 erase\/write cycles (minimum)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eData Retention:\u003c\/strong\u003e 20 years (minimum)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e −40°C to +85°C\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTeensy 4.1 External Flash\u003c\/h3\u003e\n\u003cp\u003eThe W25Q128JV solders directly to the SOP-8 footprint on the bottom of the Teensy 4.1 board. Once installed, the 16MB flash is accessible via the LittleFS or SerialFlash library and appears as a USB drive when connected to a computer.\u003c\/p\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTeensy 4.1 external flash:\u003c\/strong\u003e 16MB storage for audio samples, data logging, and large programs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBIOS \/ UEFI replacement:\u003c\/strong\u003e Large BIOS images for modern motherboards and laptops\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRouter firmware:\u003c\/strong\u003e High-capacity firmware storage for advanced router configurations\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eESP32 external flash:\u003c\/strong\u003e 16MB firmware + large filesystem storage\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eData logging:\u003c\/strong\u003e High-capacity non-volatile storage for sensor data\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × W25Q128JV SOP-8 128Mbit (16MB) SPI NOR flash memory IC\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e16MB of trusted Winbond SPI NOR flash – the W25Q128JV is the go-to choice for Teensy 4.1 external flash, large BIOS images, and any embedded application requiring more than 8MB of SPI storage.\u003c\/p\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":45674479452395,"sku":"","price":7.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/16MB-Winbond-25Q128JVSQ-FLASH-SMD-IC.jpg?v=1723007322"},{"product_id":"w25n01gv-128mb-1g-bit-serial-nand-flash-for-teensy","title":"W25N01GV 1Gbit (128MB) Serial NAND Flash Memory IC — SPI\/QSPI, 3.3V, For Teensy 4.1","description":"\u003ch2\u003eW25N01GV — 1Gbit (128MB) Serial NAND Flash Memory IC\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eW25N01GV\u003c\/strong\u003e from Winbond is a 1Gbit (128MB) Serial NAND Flash memory IC — the most popular large-capacity flash choice for \u003cstrong\u003eTeensy 4.1 external memory expansion\u003c\/strong\u003e, data logging, audio sample storage, and embedded file systems. Unlike NOR flash, NAND flash offers significantly higher density at lower cost per bit, making the W25N01GV the preferred choice when you need 128MB of non-volatile storage in a compact SOP-8 or WSON-8 package. It is fully supported by the \u003cstrong\u003eLittleFS library\u003c\/strong\u003e on Teensy 4.1 and compatible with standard SPI and Quad SPI (QSPI) interfaces.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eW25N01GV \/ W25N01GVZEIG \/ W25N01GVSFIG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCapacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1Gbit = 128MB = 134,217,728 bytes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInterface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStandard SPI \/ Dual SPI \/ Quad SPI (QSPI)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eClock Frequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 104MHz (standard SPI)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupply Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.7V – 3.6V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePage Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2,048 bytes + 64 bytes spare\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBlock Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e128KB (64 pages per block)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal Blocks\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1,024 blocks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEndurance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100,000 erase\/write cycles (minimum)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eData Retention\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 years (minimum)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eECC\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBuilt-in 1-bit ECC (hardware)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e−40°C to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePackage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSOP-8 (SMD, 1.27mm pitch)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWinbond Electronics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eNAND vs NOR Flash — Which to Choose?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNOR Flash (W25Q series):\u003c\/strong\u003e Random byte-addressable reads, execute-in-place (XIP), lower density — best for code storage and small data\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNAND Flash (W25N01GV, this):\u003c\/strong\u003e Higher density, lower cost per bit, sequential page reads — best for large data storage, file systems, audio samples, and data logging\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTeensy 4.1 Memory Expansion\u003c\/h3\u003e\u003cp\u003eThe W25N01GV is one of the supported external flash chips for Teensy 4.1 memory expansion. Install using the \u003cstrong\u003eLittleFS library\u003c\/strong\u003e (by PaulStoffregen) available in the Arduino Library Manager. The chip solders to the dedicated flash pads on the underside of the Teensy 4.1 board. After installation, LittleFS presents the flash as a standard file system accessible via the SD-compatible API.\u003c\/p\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTeensy 4.1 external flash memory expansion (128MB file system)\u003c\/li\u003e\n\u003cli\u003eAudio sample and wavetable storage for synthesizers and audio projects\u003c\/li\u003e\n\u003cli\u003eData logger storage for sensor arrays and IoT devices\u003c\/li\u003e\n\u003cli\u003eEmbedded file system (LittleFS, SPIFFS) for ESP32 and STM32 projects\u003c\/li\u003e\n\u003cli\u003eFirmware update storage for OTA-capable embedded systems\u003c\/li\u003e\n\u003cli\u003eLarge lookup table and asset storage for display projects\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e1 × W25N01GV 1Gbit Serial NAND Flash IC (SOP-8, Winbond)\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e\u003cem\u003e\u003ca href=\"https:\/\/www.winbond.com\/resource-files\/W25N01GV%20Rev%20Q%20051721.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eW25N01GV Datasheet (Winbond PDF)\u003c\/a\u003e\u003c\/em\u003e\u003c\/p\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":45674481451243,"sku":"","price":9.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/W25N01GV-1Gb-NAND-Flash.jpg?v=1723007317"},{"product_id":"w25q512jv-512mbit-64mb-spi-nor-flash-memory-ic-teensy-4-1","title":"W25Q512JV 512Mbit (64MB) SPI NOR Flash Memory IC — SOIC-8 \/ WSON-8, 133MHz, 3.3V","description":"\u003ch2\u003eW25Q512JV 512Mbit (64MB) SPI NOR Flash Memory IC — Winbond\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eWinbond W25Q512JV\u003c\/strong\u003e is a high-density \u003cstrong\u003e512Mbit (64MB) SPI NOR Flash\u003c\/strong\u003e memory IC combining large non-volatile storage capacity with a fast, flexible serial interface. Operating from a \u003cstrong\u003e2.7V–3.6V supply\u003c\/strong\u003e at up to \u003cstrong\u003e133MHz SPI clock\u003c\/strong\u003e (266MB\/s effective in Quad SPI mode), it delivers execute-in-place (XIP) capability, byte-level random read access, and 100,000 write\/erase cycles per sector — making it the preferred choice for embedded firmware storage, OTA update buffers, and large asset repositories in space-constrained designs.\u003c\/p\u003e\n\n\u003cp\u003eCompatible with the \u003cstrong\u003eTeensy 4.1\u003c\/strong\u003e external flash footprint, \u003cstrong\u003eESP32\u003c\/strong\u003e, \u003cstrong\u003eSTM32\u003c\/strong\u003e, \u003cstrong\u003eRP2040\u003c\/strong\u003e, and virtually any microcontroller with an SPI or QSPI peripheral. The W25Q512JV supports standard SPI, Dual SPI, and Quad SPI modes — allowing you to trade off compatibility vs. throughput depending on your MCU’s capabilities.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e512Mbit (64MB \/ 67,108,864 bytes)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eTechnology\u003c\/td\u003e\n\u003ctd\u003eNOR Flash (byte-addressable)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eInterface\u003c\/td\u003e\n\u003ctd\u003eStandard SPI \/ Dual SPI \/ Quad SPI (QSPI)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMax SPI Clock\u003c\/td\u003e\n\u003ctd\u003e133MHz (standard SPI)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMax Quad SPI Throughput\u003c\/td\u003e\n\u003ctd\u003e266MB\/s (133MHz × 4 data lines)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e2.7V – 3.6V (3.3V nominal)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eStandby Current\u003c\/td\u003e\n\u003ctd\u003e1µA typical\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eActive Read Current\u003c\/td\u003e\n\u003ctd\u003e4mA typical\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003ePage Size\u003c\/td\u003e\n\u003ctd\u003e256 bytes\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSector Size\u003c\/td\u003e\n\u003ctd\u003e4KB (smallest erasable unit)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eBlock Size\u003c\/td\u003e\n\u003ctd\u003e64KB\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eWrite Endurance\u003c\/td\u003e\n\u003ctd\u003e100,000 cycles per sector\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eData Retention\u003c\/td\u003e\n\u003ctd\u003e20 years\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eExecute-in-Place (XIP)\u003c\/td\u003e\n\u003ctd\u003eYes (NOR Flash, byte-addressable)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003eSOIC-8 (1.27mm pitch) \/ WSON-8 (6×5mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-40°C to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eWinbond Electronics\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eRoHS Compliant\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eNOR Flash vs NAND Flash — Which Do You Need?\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eNOR Flash (W25Q512JV)\u003c\/th\u003e\n\u003cth\u003eNAND Flash (W25N02)\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eRandom Read Access\u003c\/td\u003e\n\u003ctd\u003e✅ Fast, byte-addressable\u003c\/td\u003e\n\u003ctd\u003e⚠️ Page-based (slower random)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eExecute-in-Place (XIP)\u003c\/td\u003e\n\u003ctd\u003e✅ Yes — code can run directly\u003c\/td\u003e\n\u003ctd\u003e❌ No\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eWrite\/Erase Speed\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003ctd\u003eFaster (larger pages)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCapacity Range\u003c\/td\u003e\n\u003ctd\u003eUp to 64MB\u003c\/td\u003e\n\u003ctd\u003eUp to 256MB+\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eBest For\u003c\/td\u003e\n\u003ctd\u003eFirmware, bootloaders, code storage\u003c\/td\u003e\n\u003ctd\u003eData files, logs, LittleFS\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eBad Block Management\u003c\/td\u003e\n\u003ctd\u003eNot required\u003c\/td\u003e\n\u003ctd\u003eRequired (ECC\/BBM)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhy Choose the W25Q512JV?\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e64MB in a tiny SOIC-8 footprint\u003c\/strong\u003e — the largest capacity in the W25Q series, fitting the same 8-pin package as smaller chips\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExecute-in-Place (XIP)\u003c\/strong\u003e — NOR Flash allows code to be executed directly from the chip via QSPI, extending MCU program memory without copying to RAM\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e133MHz Quad SPI\u003c\/strong\u003e — 266MB\/s effective throughput for fast firmware loading and asset streaming\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUltra-low standby current (1µA)\u003c\/strong\u003e — negligible power draw in battery-powered and IoT applications\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e100,000 write cycles\u003c\/strong\u003e — suitable for OTA firmware updates, configuration writes, and moderate-frequency data logging\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndustry-standard W25Q pinout\u003c\/strong\u003e — drop-in compatible with W25Q256, W25Q128, and other W25Q series chips\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide MCU compatibility\u003c\/strong\u003e — works with Teensy 4.1, ESP32, ESP8266, STM32, RP2040, nRF52840, and any SPI-capable MCU\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatible Platforms\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePlatform\u003c\/th\u003e\n\u003cth\u003eUse Case\u003c\/th\u003e\n\u003cth\u003eInterface Mode\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eTeensy 4.1\u003c\/td\u003e\n\u003ctd\u003eExternal flash footprint (bottom of board)\u003c\/td\u003e\n\u003ctd\u003eQSPI (built-in support)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eESP32 \/ ESP32-S3\u003c\/td\u003e\n\u003ctd\u003eExternal flash expansion via QSPI\u003c\/td\u003e\n\u003ctd\u003eQuad SPI\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSTM32 (QSPI peripheral)\u003c\/td\u003e\n\u003ctd\u003eFirmware + data storage, XIP\u003c\/td\u003e\n\u003ctd\u003eQuad SPI\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eRP2040 (Raspberry Pi Pico)\u003c\/td\u003e\n\u003ctd\u003eProgram flash replacement\/expansion\u003c\/td\u003e\n\u003ctd\u003eQSPI\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eArduino (SPI)\u003c\/td\u003e\n\u003ctd\u003eData\/file storage via SPIFlash library\u003c\/td\u003e\n\u003ctd\u003eStandard SPI\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eTypical Applications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eTeensy 4.1 external program and data flash expansion\u003c\/li\u003e\n  \u003cli\u003eESP32 \/ STM32 firmware storage and OTA update buffer\u003c\/li\u003e\n  \u003cli\u003eLittleFS \/ SPIFFS \/ FAT file system storage\u003c\/li\u003e\n  \u003cli\u003eBootloader and multi-partition firmware storage\u003c\/li\u003e\n  \u003cli\u003eLarge lookup table, font, and bitmap asset storage for display projects\u003c\/li\u003e\n  \u003cli\u003eAudio sample and waveform storage for synthesizer and audio projects\u003c\/li\u003e\n  \u003cli\u003eConfiguration and calibration data non-volatile storage\u003c\/li\u003e\n  \u003cli\u003eData logger storage for IoT sensor nodes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003ch3\u003eQ: Is the W25Q512JV compatible with the Teensy 4.1 external flash footprint?\u003c\/h3\u003e\n\u003cp\u003eYes. The Teensy 4.1 has a dedicated SOIC-8 footprint on the bottom of the board for external flash. The W25Q512JV fits this footprint directly. Solder before installing header pins for easier access. The Teensy 4.1 bootloader and LittleFS library support the W25Q512JV natively.\u003c\/p\u003e\n\n\u003ch3\u003eQ: Can I execute code directly from this flash chip (XIP)?\u003c\/h3\u003e\n\u003cp\u003eYes — NOR Flash supports execute-in-place. On platforms like STM32 and RP2040 with QSPI memory-mapped mode, the W25Q512JV can be mapped into the MCU’s address space and code can run directly from it. On Teensy 4.1, external flash is used for data storage (LittleFS), not direct code execution.\u003c\/p\u003e\n\n\u003ch3\u003eQ: What is the smallest erasable unit?\u003c\/h3\u003e\n\u003cp\u003eThe smallest erasable unit is a \u003cstrong\u003e4KB sector\u003c\/strong\u003e. Individual bytes can be read or programmed (written from 1→0), but erasing (0→1) requires erasing the entire 4KB sector. Plan your file system or data layout accordingly to minimize unnecessary erase cycles.\u003c\/p\u003e\n\n\u003ch3\u003eQ: How does W25Q512JV compare to W25Q256?\u003c\/h3\u003e\n\u003cp\u003eThe W25Q512JV has \u003cstrong\u003e4× the capacity\u003c\/strong\u003e (64MB vs 16MB) in the same SOIC-8 package with the same pinout. It is a drop-in upgrade for designs using W25Q256 or smaller W25Q series chips, provided the host MCU’s flash driver supports 4-byte addressing (required for capacities above 16MB).\u003c\/p\u003e\n\n\u003ch3\u003eQ: Does this work with the Arduino SPIFlash \/ SerialFlash library?\u003c\/h3\u003e\n\u003cp\u003eYes. The W25Q512JV is compatible with the \u003cstrong\u003eAdafruit SPIFlash\u003c\/strong\u003e and \u003cstrong\u003eSerialFlash\u003c\/strong\u003e libraries for Arduino. Ensure your library version supports 4-byte addressing for full 64MB access. The chip’s JEDEC ID (EF 40 20) is recognized by most SPI Flash libraries.\u003c\/p\u003e\n\n\u003ch2\u003ePackage Contents\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1× Winbond W25Q512JV SPI NOR Flash IC (SOIC-8 or WSON-8)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":45674482335979,"sku":"","price":38.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/64MB-Winbond-25Q512JV-FLASH-SMD-IC.jpg?v=1723007308"},{"product_id":"cjmcu-2516-spi-flash-memory-module-w25q16bvsig-16mbit-2mb-serial-storage","title":"CJMCU-2516 SPI Flash Memory Module – W25Q16BVSIG 16Mbit (2MB) Serial Storage","description":"\u003ch2\u003eCJMCU-2516 SPI Flash Memory Module – W25Q16BVSIG 16Mbit (2MB) Serial Storage\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eCJMCU-2516\u003c\/strong\u003e is a compact breakout module for the \u003cstrong\u003eW25Q16BVSIG\u003c\/strong\u003e – a 16Mbit (2MB) Winbond SPI NOR flash memory IC. The module breaks out the SPI interface to standard 2.54mm (0.1\") headers, making it easy to connect to Arduino, ESP32, STM32, and any SPI-capable microcontroller without SMD soldering. It's ideal for adding 2MB of non-volatile storage to embedded projects for firmware, data logging, audio samples, and configuration files.\u003c\/p\u003e\n\n\u003ch3\u003eModule Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlash IC:\u003c\/strong\u003e W25Q16BVSIG (Winbond)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 16Mbit = 2MB = 2,097,152 bytes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInterface:\u003c\/strong\u003e SPI (Standard and Dual SPI)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClock Frequency:\u003c\/strong\u003e Up to 80MHz\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupply Voltage:\u003c\/strong\u003e 2.7V – 3.6V (3.3V operation)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeader Pitch:\u003c\/strong\u003e 2.54mm (0.1\") – breadboard compatible\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePage Size:\u003c\/strong\u003e 256 bytes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSector Size:\u003c\/strong\u003e 4KB (individually erasable)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEndurance:\u003c\/strong\u003e 100,000 erase\/write cycles\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eData Retention:\u003c\/strong\u003e 20 years\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePin Connections\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVCC:\u003c\/strong\u003e 3.3V supply (do NOT connect to 5V directly)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGND:\u003c\/strong\u003e Ground\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCS:\u003c\/strong\u003e Chip Select (active LOW) – connect to any GPIO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMOSI:\u003c\/strong\u003e SPI data in (DI) – connect to MCU MOSI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMISO:\u003c\/strong\u003e SPI data out (DO) – connect to MCU MISO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSCK:\u003c\/strong\u003e SPI clock – connect to MCU SCK\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWP:\u003c\/strong\u003e Write Protect (pull HIGH to disable write protection)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHOLD:\u003c\/strong\u003e Hold (pull HIGH for normal operation)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eArduino Usage Note\u003c\/h3\u003e\n\u003cp\u003eArduino operates at 5V – use a 3.3V regulator or level shifter for VCC and signal lines when connecting to a 5V Arduino. ESP32, ESP8266, and STM32 (3.3V) connect directly without level shifting.\u003c\/p\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eArduino \/ ESP32 external flash:\u003c\/strong\u003e Add 2MB of SPI storage for data logging and configuration\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAudio sample storage:\u003c\/strong\u003e Store WAV files for Arduino audio playback projects\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFirmware storage:\u003c\/strong\u003e External flash for OTA firmware update staging\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eData logging:\u003c\/strong\u003e Non-volatile sensor data storage for IoT devices\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFilesystem:\u003c\/strong\u003e SPIFFS or LittleFS filesystem for web server files on ESP8266\/ESP32\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × CJMCU-2516 SPI flash memory module (W25Q16BVSIG, 2MB)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e2MB of Winbond SPI NOR flash on a breadboard-friendly breakout – the CJMCU-2516 is the easiest way to add external SPI storage to Arduino, ESP32, and STM32 projects.\u003c\/p\u003e","brand":"Keszoox","offers":[{"title":"1 PCS \/ CHINA","offer_id":46978925887723,"sku":"14:1202#1 PCS;200007763:201336100","price":8.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/cjmc-2516-spi-flash-memory.webp?v=1761028087"},{"product_id":"mx25l3206em2i-12g-32mbit-spi-nor-flash-memory-ic-sop8-5pcs","title":"MX25L3206EM2I-12G 32Mbit SPI NOR Flash Memory IC SOP-8 – Pack of 5 (MX25L3206E)","description":"\u003ch2\u003eMX25L3206EM2I-12G 32Mbit SPI NOR Flash Memory IC – SOP-8, Pack of 5\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eMX25L3206EM2I-12G (MX25L3206E)\u003c\/strong\u003e from Macronix is a 32Mbit (4MB) SPI NOR flash memory IC in a standard SOP-8 package – a widely used alternative to the Winbond W25Q32 in BIOS chips, router firmware, and embedded systems. With 86MHz SPI clock support, Dual SPI capability, and the same standard SOP-8 pinout as the W25Q32 and GD25Q32, it's pin-compatible and command-compatible with the most popular 32Mbit flash ICs on the market. This 5-piece pack is ideal for BIOS replacement, firmware recovery, and embedded storage design.\u003c\/p\u003e\n\n\u003ch3\u003eElectrical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e MX25L3206EM2I-12G \/ MX25L3206E \/ MX25L3206\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage:\u003c\/strong\u003e SOP-8 (SMD, 1.27mm pitch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 32Mbit = 4MB = 4,194,304 bytes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInterface:\u003c\/strong\u003e Standard SPI \/ Dual SPI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClock Frequency:\u003c\/strong\u003e Up to 86MHz (standard SPI) \/ 172MHz (Dual SPI effective)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupply Voltage:\u003c\/strong\u003e 2.7V – 3.6V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRead Current:\u003c\/strong\u003e ~15mA (typical at 86MHz)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandby Current:\u003c\/strong\u003e \u0026lt;10μA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePage Size:\u003c\/strong\u003e 256 bytes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSector Size:\u003c\/strong\u003e 4KB (individually erasable)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBlock Sizes:\u003c\/strong\u003e 32KB and 64KB\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEndurance:\u003c\/strong\u003e 100,000 erase\/write cycles (minimum)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eData Retention:\u003c\/strong\u003e 20 years (minimum)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e −40°C to +85°C (industrial)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eMX25L3206E vs W25Q32JV – Comparison\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMX25L3206E:\u003c\/strong\u003e 86MHz max, Dual SPI only (no Quad SPI), Macronix – widely used in older BIOS and routers\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eW25Q32JV:\u003c\/strong\u003e 133MHz max, Quad SPI (QSPI) support, Winbond – current generation with higher throughput\u003c\/li\u003e\n  \u003cli\u003eBoth are pin-compatible (same SOP-8 pinout) and command-compatible for standard SPI operations\u003c\/li\u003e\n  \u003cli\u003eChoose MX25L3206E as a direct replacement for existing MX25L3206 in BIOS and router repair\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBIOS \/ UEFI replacement:\u003c\/strong\u003e Motherboard and laptop BIOS chip replacement (common in older systems)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRouter firmware:\u003c\/strong\u003e Firmware storage in routers using MX25L3206 (very common)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEmbedded systems:\u003c\/strong\u003e Firmware and data storage for microcontrollers\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIoT devices:\u003c\/strong\u003e Configuration and firmware storage\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eData logging:\u003c\/strong\u003e Non-volatile storage for sensor data\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatible \/ Interchangeable Parts\u003c\/h3\u003e\n\u003cp\u003ePin-compatible and SPI-compatible with: W25Q32JV (Winbond), GD25Q32 (GigaDevice), S25FL032P (Spansion), EN25Q32B (EON). All share the same SOP-8 pinout and standard SPI command set for read, write, and erase operations.\u003c\/p\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e5 × MX25L3206EM2I-12G SOP-8 32Mbit SPI NOR flash memory ICs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e4MB of Macronix SPI NOR flash in a standard SOP-8 package – the MX25L3206E is the go-to replacement for BIOS and router firmware chips using the MX25L3206 series.\u003c\/p\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":46985505833195,"sku":"\u003cnone\u003e","price":17.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/mx25l3206em2i-12g-32mbit-sop8-flash-ic.webp?v=1761279399"},{"product_id":"1-8v-spi-flash-adapter-sop8-to-dip8-mx25-w25-macbook-programming","title":"1.8V SPI Flash Adapter Board SOP8 to DIP8 | MX25 W25 Conversion Module | MacBook Motherboard Programming","description":"\u003ch2\u003e1.8V SPI Flash Adapter Board — SOP8 to DIP8 | MX25 \/ W25 Conversion Module\u003c\/h2\u003e\n\n\u003cp\u003eA precision adapter board that enables programming of \u003cstrong\u003e1.8V SPI flash memory chips\u003c\/strong\u003e (MX25U \/ Macronix and W25Q \/ Winbond series) using standard 3.3V SPI flash programmers. Without this adapter, 1.8V flash chips cannot be directly programmed with 3.3V programmers — the voltage mismatch risks damaging the chip or producing unreliable programming results. This board handles the voltage level conversion, allowing you to read, write, and erase 1.8V BIOS and firmware flash chips found in Apple MacBook motherboards, ultrabooks, and other devices using 1.8V flash storage.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFunction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.8V SPI flash chip programming adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Package\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSOP8 (8-pin small outline, 1.8V flash chip)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Interface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDIP8 (8-pin dual inline, 3.3V programmer compatible)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Flash Families\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMX25U series (Macronix), W25Q series (Winbond) — 1.8V variants\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProgrammer Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCH341A, RT809H, and other 3.3V SPI flash programmers\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommon Use Case\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApple MacBook BIOS\/EFI flash programming\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNew\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhy 1.8V Flash Chips Need a Special Adapter\u003c\/h3\u003e\n\u003cp\u003eModern thin-and-light laptops — especially Apple MacBooks — use 1.8V SPI flash chips for BIOS\/EFI storage to reduce power consumption. Standard SPI flash programmers (CH341A, RT809H, etc.) operate at 3.3V. Connecting a 1.8V flash chip directly to a 3.3V programmer causes:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOvervoltage damage\u003c\/strong\u003e — 3.3V signals exceed the 1.8V chip’s maximum input voltage, potentially destroying the chip\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProgramming failures\u003c\/strong\u003e — even if the chip survives, incorrect voltage levels cause read\/write errors\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnreliable verification\u003c\/strong\u003e — data verification fails due to voltage level mismatches on the data lines\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis adapter board includes the necessary voltage level conversion circuitry to safely interface 1.8V flash chips with 3.3V programmers.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e✅ \u003cstrong\u003e1.8V to 3.3V level conversion\u003c\/strong\u003e — safely interfaces 1.8V flash chips with standard 3.3V SPI programmers\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eSOP8 to DIP8 conversion\u003c\/strong\u003e — converts SMD SOP8 flash chip footprint to DIP8 for programmer socket compatibility\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eMX25U and W25Q compatible\u003c\/strong\u003e — covers the most common 1.8V flash families used in MacBook and ultrabook motherboards\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eCH341A and RT809H compatible\u003c\/strong\u003e — works with the most popular low-cost SPI flash programmers\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eMacBook BIOS\/EFI programming\u003c\/strong\u003e — essential tool for Apple MacBook motherboard repair and BIOS recovery\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eCompact PCB design\u003c\/strong\u003e — fits directly into standard DIP8 programmer sockets\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eApple MacBook BIOS\/EFI flash chip reading and writing\u003c\/li\u003e\n  \u003cli\u003eMacBook password removal and EFI unlock\u003c\/li\u003e\n  \u003cli\u003eUltrabook and thin laptop BIOS recovery\u003c\/li\u003e\n  \u003cli\u003e1.8V SPI flash chip firmware backup and restore\u003c\/li\u003e\n  \u003cli\u003eMX25U series flash chip programming (Macronix)\u003c\/li\u003e\n  \u003cli\u003eW25Q 1.8V series flash chip programming (Winbond)\u003c\/li\u003e\n  \u003cli\u003eElectronics repair and data recovery\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow to Use\u003c\/h3\u003e\n\u003col\u003e\n  \u003cli\u003eRemove the 1.8V SPI flash chip from the motherboard (or use a clip-on programming cable for in-circuit programming).\u003c\/li\u003e\n  \u003cli\u003ePlace the flash chip in the SOP8 socket on the adapter board.\u003c\/li\u003e\n  \u003cli\u003eInsert the adapter board into the DIP8 socket of your SPI flash programmer (CH341A, RT809H, etc.).\u003c\/li\u003e\n  \u003cli\u003eUse your programmer software to read, write, or erase the flash chip at 1.8V logic levels.\u003c\/li\u003e\n  \u003cli\u003eVerify the written data before reinstalling the chip.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this work with the CH341A programmer?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The CH341A is one of the most common SPI flash programmers and is compatible with this adapter. Ensure you use CH341A software that supports 1.8V flash chips (some versions require a firmware update for 1.8V support).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I use this for in-circuit programming without removing the chip?\u003c\/strong\u003e\u003cbr\u003eA: This adapter is designed for socket-based programming. For in-circuit programming, use a SOIC8 clip cable connected to your programmer, with the adapter providing the voltage level conversion.\u003c\/p\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1× 1.8V SPI Flash Adapter Board (SOP8 to DIP8, MX25\/W25 compatible)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":46985525625067,"sku":"\u003cnone\u003e","price":12.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/1-8v-spi-flash-sop8-to-dip8-adapter-mx25-w25.webp?v=1761274873"},{"product_id":"ch341a-usb-bios-programmer-lcd-mx25l6405-w25q64-24-25-series","title":"CH341A USB BIOS Programmer with LCD – Supports MX25L6405 \/ W25Q64 \/ 24 \u0026 25 Series Flash ICs","description":"\u003ch2\u003eCH341A USB BIOS Programmer with LCD – Supports MX25L6405 \/ W25Q64 \/ 24 \u0026amp; 25 Series\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eCH341A USB programmer\u003c\/strong\u003e is the most widely used low-cost BIOS and flash memory programmer – a USB device that reads and writes SPI NOR flash (25 series) and I²C EEPROM (24 series) ICs directly from a PC via USB. This version includes an LCD display for status feedback. Compatible with the most common BIOS chips (MX25L6405, W25Q64, W25Q32, and hundreds more), it's the essential tool for BIOS recovery, firmware flashing, and IC programming without a dedicated programmer.\u003c\/p\u003e\n\n\u003ch3\u003eProgrammer Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProgrammer IC:\u003c\/strong\u003e CH341A (WCH)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInterface:\u003c\/strong\u003e USB 2.0 (appears as USB serial device)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupported IC Families:\u003c\/strong\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003e25 series SPI NOR Flash:\u003c\/strong\u003e W25Qxx (Winbond), MX25Lxx (Macronix), GD25Qxx (GigaDevice), S25FLxx (Spansion), EN25Qxx (EON), and more\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003e24 series I²C EEPROM:\u003c\/strong\u003e 24C01 through 24C512 (all capacities)\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSocket:\u003c\/strong\u003e SOP-8 ZIF socket (for SOP-8 ICs) + DIP-8 socket\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClip Support:\u003c\/strong\u003e Compatible with SOP-8 test clip for in-circuit programming\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDisplay:\u003c\/strong\u003e LCD status display\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e USB bus-powered (5V from USB)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSoftware:\u003c\/strong\u003e AsProgrammer, NeoProgrammer, or CH341A Programmer (free, Windows)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating System:\u003c\/strong\u003e Windows 7\/8\/10\/11\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSupported Flash ICs (Examples)\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWinbond:\u003c\/strong\u003e W25Q16, W25Q32, W25Q64, W25Q128, W25Q256\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMacronix:\u003c\/strong\u003e MX25L1606, MX25L3206, MX25L6406, MX25L12806\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGigaDevice:\u003c\/strong\u003e GD25Q32, GD25Q64, GD25Q128\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEEPROM:\u003c\/strong\u003e 24C01, 24C02, 24C04, 24C08, 24C16, 24C32, 24C64, 24C128, 24C256, 24C512\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Use Cases\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBIOS recovery:\u003c\/strong\u003e Re-flash a corrupted BIOS chip after a failed update\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBIOS modding:\u003c\/strong\u003e Flash custom BIOS for overclocking or feature unlocking\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRouter firmware:\u003c\/strong\u003e Read\/write router firmware flash chips\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEEPROM programming:\u003c\/strong\u003e Program 24Cxxx EEPROMs for automotive and consumer electronics repair\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIC backup:\u003c\/strong\u003e Read and backup flash IC contents before repair\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBlank IC programming:\u003c\/strong\u003e Program new blank flash ICs with firmware images\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIn-Circuit Programming Note\u003c\/h3\u003e\n\u003cp\u003eFor in-circuit programming (without removing the IC from the board), use an SOP-8 test clip connected to the programmer. Ensure the target board is powered off and the programmer provides the only power to the flash IC via the clip.\u003c\/p\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × CH341A USB BIOS programmer with LCD\u003c\/li\u003e\n  \u003cli\u003eSOP-8 ZIF socket adapter\u003c\/li\u003e\n  \u003cli\u003eUSB cable\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThe essential BIOS recovery and flash programming tool – the CH341A reads and writes hundreds of SPI NOR flash and I²C EEPROM ICs via USB for BIOS recovery, firmware flashing, and IC programming.\u003c\/p\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":46991415935211,"sku":"\u003cnone\u003e","price":13.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/ch341-usb-bios-programmer-mx25l6405-w25q64.webp?v=1761891491"},{"product_id":"w25q-series-spi-nor-flash-sop8-2mb-16mb-qspi-100k-cycles-2pack","title":"W25Q Series SPI NOR Flash Memory IC — SOP-8, 2MB–16MB, QSPI, 100K Cycles (2-Pack)","description":"\u003ch2\u003eW25Q Series SPI NOR Flash Memory IC — SOP-8, 2–16MB, QSPI, 2-Pack\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eW25Q series\u003c\/strong\u003e from Winbond is the industry-standard SPI NOR flash memory used in ESP8266\/ESP32 firmware storage, BIOS chips, microcontroller data logging, and embedded system code storage. Supporting Standard SPI, Dual SPI, and Quad SPI (QSPI) at up to 133MHz, these ICs offer 100,000 erase\/write cycles and 20-year data retention in a compact SOP-8 package.\u003c\/p\u003e\u003ch3\u003eCapacity Variants\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003cth\u003eCapacity (bits)\u003c\/th\u003e\n\u003cth\u003eCapacity (bytes)\u003c\/th\u003e\n\u003cth\u003eMax SPI Speed\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eW25Q16\u003c\/td\u003e\n\u003ctd\u003e16Mbit\u003c\/td\u003e\n\u003ctd\u003e2MB\u003c\/td\u003e\n\u003ctd\u003e104MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eW25Q32\u003c\/td\u003e\n\u003ctd\u003e32Mbit\u003c\/td\u003e\n\u003ctd\u003e4MB\u003c\/td\u003e\n\u003ctd\u003e133MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eW25Q64\u003c\/td\u003e\n\u003ctd\u003e64Mbit\u003c\/td\u003e\n\u003ctd\u003e8MB\u003c\/td\u003e\n\u003ctd\u003e133MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eW25Q128\u003c\/td\u003e\n\u003ctd\u003e128Mbit\u003c\/td\u003e\n\u003ctd\u003e16MB\u003c\/td\u003e\n\u003ctd\u003e133MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCommon Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003eSOP-8 (SOIC-8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface\u003c\/td\u003e\n\u003ctd\u003eStandard SPI \/ Dual SPI \/ Quad SPI (QSPI)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e2.7V – 3.6V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eErase\/Write Cycles\u003c\/td\u003e\n\u003ctd\u003e100,000 minimum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Retention\u003c\/td\u003e\n\u003ctd\u003e20 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-40°C to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePack Quantity\u003c\/td\u003e\n\u003ctd\u003e2 pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eWhy Choose W25Q Series?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e✅ \u003cstrong\u003eIndustry-standard Winbond flash\u003c\/strong\u003e — used in ESP8266, ESP32, STM32, and BIOS chips\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eQSPI support\u003c\/strong\u003e — up to 4× faster than standard SPI for code execution (XIP)\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003e100,000 write cycles\u003c\/strong\u003e — long service life for data logging applications\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003e20-year retention\u003c\/strong\u003e — reliable non-volatile storage\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eSOP-8 package\u003c\/strong\u003e — hand-solderable and compatible with standard SOIC-8 sockets\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003e2-pack value\u003c\/strong\u003e — spare chip for repair or prototyping\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eESP8266 \/ ESP32 firmware storage replacement\u003c\/li\u003e\n\u003cli\u003eLaptop and desktop BIOS chip replacement\u003c\/li\u003e\n\u003cli\u003eSTM32 \/ AVR external flash data storage\u003c\/li\u003e\n\u003cli\u003eEmbedded system code storage (XIP via QSPI)\u003c\/li\u003e\n\u003cli\u003eData logger non-volatile memory\u003c\/li\u003e\n\u003cli\u003eRouter and IoT device firmware storage\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e2 × W25Q Series SPI NOR Flash IC (SOP-8, capacity as selected)\u003c\/li\u003e\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"W25Q32","offer_id":46991429894379,"sku":"14:351074#W25Q32","price":5.32,"currency_code":"USD","in_stock":true},{"title":"W25Q80","offer_id":46991429927147,"sku":"14:1202#W25Q80","price":4.84,"currency_code":"USD","in_stock":true},{"title":"W25Q128","offer_id":46991429959915,"sku":"14:201659813#W25Q128","price":11.68,"currency_code":"USD","in_stock":true},{"title":"W25Q16","offer_id":46991429992683,"sku":"14:350852#W25Q16","price":4.96,"currency_code":"USD","in_stock":true},{"title":"W25Q64","offer_id":46991430025451,"sku":"14:4044226#W25Q64","price":6.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/w25q-series-spi-flash-memory-ics-sop8.webp?v=1761883738"},{"product_id":"w25q-series-spi-nor-flash-sop8-1mb-16mb-qspi-100k-cycles-5pack","title":"W25Q Series SPI NOR Flash Memory IC — SOP-8, 1MB–16MB, QSPI, 100K Cycles (5-Pack)","description":"\u003ch2\u003eW25Q Series SPI NOR Flash Memory IC — SOP-8, 1MB–16MB, QSPI (5-Pack)\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eW25Q series\u003c\/strong\u003e from Winbond are the industry-standard SPI NOR flash memory ICs in SOP-8 SMD package — used in virtually every embedded system, ESP8266\/ESP32 module, BIOS chip, and IoT device for firmware and data storage. All variants support Standard SPI, Dual SPI, and Quad SPI (QSPI) interfaces with up to 133MHz clock. 100,000 erase\/write cycle endurance and 20-year data retention. Pack of 5 (select capacity).\u003c\/p\u003e\n\n\u003ch3\u003eCapacity Variants\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eW25Q80:\u003c\/strong\u003e 8Mbit = 1MB — for small firmware and config storage\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eW25Q16:\u003c\/strong\u003e 16Mbit = 2MB — for ESP8266 modules (standard)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eW25Q32:\u003c\/strong\u003e 32Mbit = 4MB — for ESP8266 with OTA + SPIFFS file system\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eW25Q64:\u003c\/strong\u003e 64Mbit = 8MB — for larger firmware or data storage\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eW25Q128:\u003c\/strong\u003e 128Mbit = 16MB — for audio files, large file systems, BIOS\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCommon Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage:\u003c\/strong\u003e SOP-8 (SMD, 1.27mm pitch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInterface:\u003c\/strong\u003e Standard SPI \/ Dual SPI \/ Quad SPI (QSPI)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax Clock:\u003c\/strong\u003e 104MHz (W25Q80\/16) \/ 133MHz (W25Q32\/64\/128 JV series)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupply Voltage:\u003c\/strong\u003e 2.7V – 3.6V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePage Size:\u003c\/strong\u003e 256 bytes | \u003cstrong\u003eSector:\u003c\/strong\u003e 4KB\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEndurance:\u003c\/strong\u003e 100,000 erase\/write cycles\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eData Retention:\u003c\/strong\u003e 20 years\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e -40°C to +85°C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePack Quantity:\u003c\/strong\u003e 5 ICs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eESP8266 \/ ESP32 module firmware storage (replacement)\u003c\/li\u003e\n  \u003cli\u003eLaptop and desktop BIOS chip replacement\u003c\/li\u003e\n  \u003cli\u003eEmbedded system firmware and data storage\u003c\/li\u003e\n  \u003cli\u003eArduino external SPI flash (LittleFS, SPIFFS)\u003c\/li\u003e\n  \u003cli\u003eIoT device configuration and OTA update storage\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eW25Q series SPI NOR flash, 5-pack — SOP-8, 1–16MB, QSPI 133MHz, 100K cycles for ESP8266\/ESP32 firmware, BIOS replacement, and embedded storage.\u003c\/p\u003e","brand":"Keszoox","offers":[{"title":"W25Q80","offer_id":46991446376683,"sku":"14:4044226#W25Q80","price":9.36,"currency_code":"USD","in_stock":true},{"title":"W25Q16","offer_id":46991446409451,"sku":"14:1202#W25Q16","price":9.36,"currency_code":"USD","in_stock":true},{"title":"W25Q128","offer_id":46991446442219,"sku":"14:201659813#W25Q128","price":13.68,"currency_code":"USD","in_stock":true},{"title":"W25Q64","offer_id":46991446474987,"sku":"14:351074#W25Q64","price":13.68,"currency_code":"USD","in_stock":true},{"title":"W25Q32","offer_id":46991446507755,"sku":"14:350852#W25Q32","price":10.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/w25q-series-sop8-flash-memory-ics.webp?v=1761805470"},{"product_id":"w25q64jvssiq-w25q64jvsiq-64mbit-spi-nor-flash-memory-ic-sop8-5pcs","title":"W25Q64JV 64Mbit SPI NOR Flash Memory IC SOP-8 – Pack of 5 (W25Q64JVSSIQ \/ W25Q64JVSIQ)","description":"\u003ch2\u003eW25Q64JV 64Mbit (8MB) SPI NOR Flash Memory IC — SOP-8, 133MHz, QSPI (5-Pack)\u003c\/h2\u003e\u003cp\u003eThe W25Q64JVSSIQ \/ W25Q64JVSIQ is a 64Mbit (8MB) serial NOR flash memory IC from Winbond in a SOP-8 SMD package. Operating at up to 133MHz with standard SPI, Dual SPI, and Quad SPI (QSPI) interfaces, it is the industry-standard flash chip used in BIOS\/UEFI firmware storage, router firmware, ESP32\/ESP8266 program storage, and embedded data logging applications.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e64Mbit (8MB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Numbers\u003c\/td\u003e\n\u003ctd\u003eW25Q64JVSSIQ (SOP-8), W25Q64JVSIQ (SOP-8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface\u003c\/td\u003e\n\u003ctd\u003eSPI \/ Dual SPI \/ Quad SPI (QSPI)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Clock Frequency\u003c\/td\u003e\n\u003ctd\u003e133MHz (Standard SPI), 80MHz (Dual\/Quad)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e2.7–3.6V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePage Size\u003c\/td\u003e\n\u003ctd\u003e256 bytes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSector Size\u003c\/td\u003e\n\u003ctd\u003e4KB (erasable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEndurance\u003c\/td\u003e\n\u003ctd\u003e100,000 erase\/write cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Retention\u003c\/td\u003e\n\u003ctd\u003e20 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003eSOP-8 (SMD)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003e5 pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhy Choose W25Q64JV?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustry-standard BIOS chip\u003c\/strong\u003e — direct replacement for failed W25Q64 in motherboards, routers, and industrial controllers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQSPI support\u003c\/strong\u003e — 4× faster than standard SPI for code execution in XIP (execute-in-place) mode\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e133MHz max clock\u003c\/strong\u003e — high-speed data transfer for demanding embedded applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100K erase cycles\u003c\/strong\u003e — long service life for firmware update and data logging use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWinbond W25Q series\u003c\/strong\u003e — most widely supported flash IC in open-source firmware tools (flashrom, esptool, OpenOCD)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatible With\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBIOS\/UEFI repair\u003c\/strong\u003e: Laptop and desktop motherboard BIOS chip replacement (verify exact part number match)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eESP32 \/ ESP8266\u003c\/strong\u003e: External program and data storage via SPI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSTM32\u003c\/strong\u003e: External flash via QSPI or SPI interface\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRaspberry Pi\u003c\/strong\u003e: SPI flash via spidev \/ flashrom\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProgrammer tools\u003c\/strong\u003e: CH341A, RT809H, T48, XGecu TL866II Plus\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: What is the difference between W25Q64JVSSIQ and W25Q64JVSIQ?\u003c\/strong\u003e\u003cbr\u003eA: Both are 64Mbit SOP-8 NOR flash. The W25Q64JVSSIQ supports standard\/dual\/quad SPI; the W25Q64JVSIQ additionally supports QPI (Quad Peripheral Interface) mode for even faster quad I\/O. For most BIOS replacement and ESP32 use, either variant works identically.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Can I use this to replace a BIOS chip on my laptop motherboard?\u003c\/strong\u003e\u003cbr\u003eA: Yes, if the original chip is a W25Q64 variant in SOP-8. Read the original chip first with a CH341A programmer to back up the firmware, then write to the new chip. Verify the exact part number and voltage (2.7–3.6V) matches your board.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Is this compatible with the Arduino SPI Flash library?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The W25Q64JV is supported by the SPIMemory and SerialFlash Arduino libraries. Use the standard SPI pins (MOSI, MISO, SCK, CS) and initialize with the correct chip size (8MB \/ 64Mbit).\u003c\/p\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e5× W25Q64JV 64Mbit SPI NOR Flash Memory IC (SOP-8)\u003c\/li\u003e\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":46991456403691,"sku":"\u003cnone\u003e","price":8.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/w25q64jvssiq-w25q64jvsiq-sop-8-serial-flash-memory-ic.webp?v=1761800204"},{"product_id":"w25q32jv-32mbit-spi-nor-flash-sop8-133mhz-qspi-4mb-5pack","title":"W25Q32JV 32Mbit SPI NOR Flash Memory IC — SOP-8, 133MHz, QSPI, 4MB (5-Pack)","description":"\u003ch2\u003eW25Q32JV 32Mbit (4MB) SPI NOR Flash Memory IC — SOP-8, 133MHz, QSPI (5-Pack)\u003c\/h2\u003e\u003cp\u003eThe W25Q32JV is a 32Mbit (4MB) serial NOR flash memory IC from Winbond in a SOP-8 SMD package. Supporting standard SPI, Dual SPI, and Quad SPI (QSPI) at up to 133MHz, it is the most common flash IC used for ESP8266 and ESP32 firmware storage, router and IoT device firmware, and embedded data logging. With 100,000 erase\/write cycles and 20-year data retention, it provides reliable non-volatile storage for demanding embedded applications.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e32Mbit (4MB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface\u003c\/td\u003e\n\u003ctd\u003eSPI \/ Dual SPI \/ Quad SPI (QSPI)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Clock Frequency\u003c\/td\u003e\n\u003ctd\u003e133MHz (Standard SPI)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e2.7–3.6V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePage Size\u003c\/td\u003e\n\u003ctd\u003e256 bytes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSector Size\u003c\/td\u003e\n\u003ctd\u003e4KB (smallest erasable unit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEndurance\u003c\/td\u003e\n\u003ctd\u003e100,000 erase\/write cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Retention\u003c\/td\u003e\n\u003ctd\u003e20 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003eSOP-8 (SMD)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003e5 pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhy Choose W25Q32JV?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eESP8266 \/ ESP32 native flash\u003c\/strong\u003e — the exact IC used on most ESP8266 and ESP32 modules for firmware storage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQSPI support\u003c\/strong\u003e — 4× faster than standard SPI for XIP (execute-in-place) code execution\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e133MHz max clock\u003c\/strong\u003e — high-speed data transfer for demanding embedded applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100K erase cycles\u003c\/strong\u003e — long service life for OTA firmware update and data logging\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWinbond W25Q series\u003c\/strong\u003e — most widely supported flash IC in open-source tools (esptool, flashrom, OpenOCD)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatible With\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eESP8266 modules\u003c\/strong\u003e: ESP-01, ESP-12E\/F — direct replacement for failed or corrupted flash\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eESP32 modules\u003c\/strong\u003e: ESP32-WROOM-32, ESP32-WROVER — external flash expansion or replacement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSTM32\u003c\/strong\u003e: External QSPI flash via QUADSPI peripheral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRaspberry Pi\u003c\/strong\u003e: SPI flash via spidev \/ flashrom\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProgrammer tools\u003c\/strong\u003e: CH341A, RT809H, T48, XGecu TL866II Plus, esptool.py\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArduino libraries\u003c\/strong\u003e: SPIMemory, SerialFlash\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: What is the difference between W25Q32JV and W25Q32FV?\u003c\/strong\u003e\u003cbr\u003eA: Both are 32Mbit SOP-8 NOR flash. W25Q32JV is the newer generation with QSPI (Quad Peripheral Interface) support and slightly lower power consumption. W25Q32FV is the older generation without QPI mode. For ESP8266\/ESP32 replacement, either works — W25Q32JV is preferred for new designs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Can I use W25Q32JV to replace the flash on an ESP-01 module?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The ESP-01 uses a W25Q32 (or equivalent) in SOP-8. Desolder the original IC with hot air, clean the pads, and solder the new W25Q32JV. Then flash the firmware using esptool.py: \u003ccode\u003eesptool.py --port COM3 write_flash 0x0 firmware.bin\u003c\/code\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: How do I read\/write W25Q32JV with a CH341A programmer?\u003c\/strong\u003e\u003cbr\u003eA: Connect the W25Q32JV to the CH341A SOP-8 clip or socket. Open NeoProgrammer or AsProgrammer, select W25Q32JV from the chip list, and use Read\/Write\/Verify functions. Ensure the chip is powered at 3.3V (use the CH341A’s 3.3V output, not 5V).\u003c\/p\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e5× W25Q32JV 32Mbit SPI NOR Flash Memory IC (SOP-8)\u003c\/li\u003e\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":46991457943787,"sku":"\u003cnone\u003e","price":7.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/w25q32jvssiq-w25q32jvsiq-sop-8-flash-memory-ic.webp?v=1761795818"},{"product_id":"gd25q32bsig-32mbit-spi-nor-flash-memory-ic-sop8-2pcs","title":"GD25Q32BSIG 32Mbit SPI NOR Flash Memory IC SOP-8 – Pack of 2 (GD25Q32)","description":"\u003ch2\u003eGD25Q32BSIG 32Mbit SPI NOR Flash Memory IC – SOP-8, Pack of 2\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eGD25Q32BSIG\u003c\/strong\u003e from GigaDevice is a 32Mbit (4MB) SPI NOR flash memory IC – one of the most widely used flash storage devices in embedded systems, BIOS chips, router firmware, and IoT devices. With a standard SPI interface, 104MHz clock support, and 2.7V–3.6V supply range, it's compatible with virtually every microcontroller and embedded processor on the market. This 2-piece SOP-8 pack is ideal for BIOS replacement, firmware recovery, and embedded storage design.\u003c\/p\u003e\n\n\u003ch3\u003eElectrical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e GD25Q32BSIG \/ GD25Q32 \/ GD25Q32CSIG\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage:\u003c\/strong\u003e SOP-8 (SMD, 1.27mm pitch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 32Mbit = 4MB = 4,194,304 bytes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInterface:\u003c\/strong\u003e SPI (Standard, Dual, Quad SPI)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClock Frequency:\u003c\/strong\u003e Up to 104MHz (standard SPI), 208MHz (Dual\/Quad)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupply Voltage:\u003c\/strong\u003e 2.7V – 3.6V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Current (read):\u003c\/strong\u003e ~10mA typical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandby Current:\u003c\/strong\u003e \u0026lt;1μA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePage Size:\u003c\/strong\u003e 256 bytes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSector Size:\u003c\/strong\u003e 4KB (erasable independently)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBlock Size:\u003c\/strong\u003e 32KB \/ 64KB\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEndurance:\u003c\/strong\u003e 100,000 erase\/write cycles (typical)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eData Retention:\u003c\/strong\u003e 20 years (typical)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e −40°C to +85°C\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSPI Interface – Pin Configuration (SOP-8)\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003ePin 1: \/CS – Chip Select (active LOW)\u003c\/li\u003e\n  \u003cli\u003ePin 2: DO (MISO) – Data Output \/ IO1\u003c\/li\u003e\n  \u003cli\u003ePin 3: \/WP – Write Protect (pull HIGH to disable)\u003c\/li\u003e\n  \u003cli\u003ePin 4: GND – Ground\u003c\/li\u003e\n  \u003cli\u003ePin 5: DI (MOSI) – Data Input \/ IO0\u003c\/li\u003e\n  \u003cli\u003ePin 6: CLK – Serial Clock\u003c\/li\u003e\n  \u003cli\u003ePin 7: \/HOLD – Hold (pull HIGH for normal operation)\u003c\/li\u003e\n  \u003cli\u003ePin 8: VCC – Supply (2.7V–3.6V)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSupported SPI Modes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard SPI:\u003c\/strong\u003e 1-bit data (MOSI\/MISO), up to 104MHz\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual SPI:\u003c\/strong\u003e 2-bit data (IO0\/IO1), up to 208MHz effective\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuad SPI (QSPI):\u003c\/strong\u003e 4-bit data (IO0–IO3), up to 416MHz effective\u003c\/li\u003e\n  \u003cli\u003eCompatible with SPI Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBIOS \/ UEFI chip replacement:\u003c\/strong\u003e Motherboard, laptop, and router BIOS recovery\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFirmware storage:\u003c\/strong\u003e Embedded system firmware for microcontrollers and SoCs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIoT devices:\u003c\/strong\u003e Configuration and firmware storage for ESP8266, ESP32, and similar\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRouter \/ switch firmware:\u003c\/strong\u003e Network equipment firmware storage and recovery\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eData logging:\u003c\/strong\u003e Non-volatile storage for sensor data and event logs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBootloader storage:\u003c\/strong\u003e External flash for ARM Cortex-M and RISC-V systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatible \/ Interchangeable Parts\u003c\/h3\u003e\n\u003cp\u003eThe GD25Q32BSIG is pin-compatible and functionally interchangeable with: W25Q32JV (Winbond), MX25L3206E (Macronix), S25FL032P (Spansion\/Cypress), EN25Q32B (EON). All share the same SOP-8 pinout and SPI command set.\u003c\/p\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2 × GD25Q32BSIG SOP-8 32Mbit SPI NOR flash memory ICs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e4MB of reliable NOR flash in a standard SOP-8 package – the GD25Q32BSIG is the go-to choice for BIOS replacement, firmware storage, and embedded system non-volatile memory design.\u003c\/p\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":46991462957291,"sku":"\u003cnone\u003e","price":9.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/gd25q32bsig-gd25q32-sop8-serial-flash-ic.webp?v=1761721075"}],"url":"https:\/\/keszoox.com\/collections\/spi-nor-flash-memory-ics.oembed","provider":"Keszoox","version":"1.0","type":"link"}