SKU: TH2104
This Adafruit W25Q16 QSPI Flash Breakout is built around the Winbond W25Q16JVSSIQ, a 16 Mbit (2 MB) external QSPI flash memory commonly used for firmware, assets, and data storage in modern microcontroller designs. It breaks out the 8-SOIC QSPI flash into a 0.3″ DIP form factor, making it easy to prototype and socket high-speed quad-SPI flash with MCUs like RP2040, ESP32, and STM32.
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This Adafruit W25Q16 QSPI Flash Breakout is built around the Winbond W25Q16JVSSIQ, a 16 Mbit (2 MB) external QSPI flash memory commonly used for firmware, assets, and data storage in modern microcontroller designs. It breaks out the 8-SOIC QSPI flash into a 0.3″ DIP form factor, making it easy to prototype and socket high-speed quad-SPI flash with MCUs like RP2040, ESP32, and STM32.
The W25Q16JVSSIQ supports single, dual, and quad SPI modes at up to 133 MHz, operates at 3.3 V logic, and provides fast read performance for execute-in-place (XIP) applications. Ideal for testing flash sizes, firmware storage, and adding external non-volatile memory without designing a custom PCB.
Technical details for Adafruit W25Q16 QSPI Flash Breakout - 16Mbit 2MB.
| Specification | Details |
|---|---|
| Flash IC | Winbond W25Q16JVSSIQ |
| Memory Capacity | 16 Mbit (2 MByte) |
| Memory Type | Serial NOR Flash |
| Interface | SPI / Dual SPI / Quad SPI (QSPI) |
| Maximum Clock Frequency | Up to 133 MHz (QSPI mode) |
| Operating Voltage | 3.0 V – 3.6 V (3.3 V nominal) |
| Execute In Place (XIP) | Supported |
| Package Type | 8-SOIC (mounted on breakout) |
| Breakout Form Factor | 0.3″ DIP, breadboard compatible |
| Erase Types | Sector, Block, and Chip Erase |
| Endurance | 100,000 program/erase cycles per sector |
| Data Retention | 20 years |
| Typical Applications | Firmware storage, assets storage, external MCU flash, prototyping |
| 3V | 3.3V power supply |
|---|---|
| CS | Chip Select (active low) |
| IO3 | QSPI IO3 / HOLD# (unused in SPI mode) |
| IO1 | QSPI IO1 / MISO |
| CLK | SPI / QSPI clock |
| IO2 | QSPI IO2 / WP# (unused in SPI mode) |
| IO0 | QSPI IO0 / MOSI |
| G | Ground |
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