Adafruit
Adafruit QSPI DIP Breakout with W25Q64 Flash - 64Mbit / 8MB
· MPN: ADA5633
This breakout makes it much easier to prototype with external QSPI flash memory on modern microcontrollers such as the RP2040, ESP32, RT10xx and STM32 famili...
This breakout makes it much easier to prototype with external QSPI flash memory on modern microcontrollers such as the RP2040, ESP32, RT10xx and STM32 families. It adapts a wide 8-SOIC flash package to a neat 0.3" wide DIP format, so you can plug it into a breadboard, try different flash sizes, or swap it in place of a socketed SPI flash DIP chip.
Fitted on this version is a W25Q64JVSSIQ flash chip, giving you 64 Megabits (8 Mega-bytes) of extra storage with 3.3V power and logic. The Q suffix means the Quad Enable bit is permanently set in the status register, so it is ready to use in QSPI mode straight away. If you're using it in standard SPI mode, the hold and write protect pins are inactive, so they should simply be connected to 3.3V.
Adafruit also includes a strip of header, so you can solder it on for breadboard use or other through-hole mounting. For software support, the board works with the Adafruit_SPIFlash library in Arduino, and the flash chip also has a TOML definition file for use in CircuitPython board definitions.
Keep in mind this is a 3.3V-only board for both logic and power, making it a handy option when you need more code or asset storage on a compatible 3.3V design.
Specifications:
- Product Dimensions: 11.2mm x 10.2mm x 3.5mm / 0.4" x 0.4" x 0.1"
Jargon buster
Plain-language definitions for the technical terms used above.
- breakout
- A breakout is a small circuit board that makes a tiny or hard-to-solder component easier to connect to with standard pins. It matters because this OLED module can be wired into a microcontroller project without needing to solder directly to the display’s fine contacts.
- CircuitPython
- A beginner-friendly version of Python designed to run directly on microcontroller boards. If a product supports CircuitPython, you can often program it by copying code files onto the board rather than setting up a more complex toolchain.
- ESP32
- ESP32 is a family of microcontroller modules with built-in wireless features such as Bluetooth and WiFi. Knowing this product uses an ESP32-based module helps explain how it provides wireless serial communication and firmware update features.
- Flash memory
- Non-volatile memory that keeps stored data even when power is removed. In this sensor, it matters because enrolled fingerprint templates can remain saved after the project is turned off.
- RP2040
- A microcontroller chip used on many maker boards, with enough speed and flexible I/O for some camera and display projects. Compatibility with RP2040 matters because camera modules often need many pins and careful timing to read image data successfully.
- SPI
- A fast serial communication bus often used for displays, memory cards, and sensors. It matters because SPI devices need specific pins for clock and data, plus a separate chip-select line for each device.
- STM32
- STM32 is a family of microcontroller chips commonly used in embedded electronics. Knowing a product uses an STM32 can help when looking at firmware updates, pin connections, or low-level serial control options.
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