{"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","url":"https:\/\/keszoox.com\/products\/w25q512jv-512mbit-64mb-spi-nor-flash-memory-ic-teensy-4-1","provider":"Keszoox","version":"1.0","type":"link"}