{"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","url":"https:\/\/keszoox.com\/products\/cjmcu-2516-spi-flash-memory-module-w25q16bvsig-16mbit-2mb-serial-storage","provider":"Keszoox","version":"1.0","type":"link"}