The W25Q64JV 64M-Bit Serial Flash Module provides 8MB of non-volatile storage with a high-speed SPI interface, making it an excellent choice for expanding memory in embedded projects. Based on the Winbond 25Q64JVSIQ chip, it supports up to 133MHz clock rates and offers flexible organization for storing audio files, images, or sensor data. Operating at 3.3V, the module requires level shifting when used with 5V microcontrollers such as Arduino Uno or Mega. Compact and breadboard-friendly, it includes a power LED and resistor for ease of use. With support from libraries like SPIMemory in Arduino IDE, this module is perfect for prototyping and integrating large storage into IoT, robotics, and data logging systems. Featured By RoboticsBD.
Product Images are shown for illustrative purposes only and may differ from the actual product.
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Features:
64M-bit (8MB) non-volatile flash storage.
Organized as 32,768 pages × 256 bytes.
SPI interface with up to 133MHz clock rate.
Operates at 3.3V logic levels.
Onboard power LED with 2K limiting resistor.
Breadboard and proto board friendly.
Compatible with Arduino libraries such as SPIMemory.
Compact module with reliable build quality.
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Applications:
Expanding storage for Arduino, ESP32, STM32, and similar MCUs.
Storing audio files, images, and multimedia data.
Sensor data logging in IoT devices.
Memory expansion for robotics and embedded systems.
Educational and prototyping projects requiring external flash storage.
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| General Specifications |
| Product Type | Serial Flash Memory Module |
| Model | W25Q64JV |
| Memory Capacity | 64M-bit (8MB) |
| Memory Organization | 32,768 pages × 256 bytes |
| Interface | SPI |
| Clock Speed | Up to 133MHz |
| Operating Voltage | 3.3V |
| Compatibility | Requires level shifting with 5V MCUs |
| Onboard Features | Power LED, 2K resistor |
| Libraries Supported | SPIMemory (Arduino IDE) |
| Shipment Weight | 0.0019 kg |
| Shipment Dimensions | 2 × 2 × 2 cm |
Please allow 5% measuring deviation due to manual measurement.
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Documentation:
Module Connections
The connections to the module are fairly simple.
Supply 3.3V power and ground.
Connect the SPI interface. Be sure to use a logic level converter if connecting to a 5V MCU.
1 x 6 Header
- VCC = 3.3V Power
- CS = Chip Select – connects to SPI SS pin
- DO = Data Out – connects to SPI MISO
- GND = Ground connects to MCU ground
- CLK= Clock – Connects to SPI Clock
- DI = Data In – connects to SPI MOSI
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OUR EVALUATION RESULTS:
These modules have good build quality and work well for connecting a flash memory to a solderless breadboard circuit or mount on a permanent solder type proto board.
There are a number of libraries available for working with flash memory. With the Arduino IDE, we use the SPIMemory library that can be downloaded from the IDE Library Manager.
To use the module, connect 3.3V power and ground. The chip should be connected to the primary hardware SPI interface. On Uno style boards this is usually pins 10,11,12 and 13. On a Mega these pins are 50, 51, 52, 53.
If you download the SPIMemory library it comes with several example programs that can be used to verify that the device is working as expected.
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Package Includes:
1 x W25Q64JV 64M-Bit Serial Flash Module
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