Boardoza W25Q40CLSNIG SPI Flash Memory Breakout Board

A 4Mbit SPI flash memory breakout board based on W25Q40CLSNIG for reliable data and code storage.

Boardoza W25Q40CLSNIG Serial Flash Memory Breakout Board

The Boardoza W25Q40CLSNIG is a compact and high-performance SPI Flash memory breakout board built around the Winbond W25Q40CLSNIG chip. Offering 4 megabits (512 kilobytes) of non-volatile storage, it is ideal for embedded applications requiring code execution, configuration retention, or data logging.

With support for SPI communication up to 104 MHz, this module enables fast and reliable read/write operations, even in timing-critical environments. The board is equipped with power and I/O indicators and is fully compatible with microcontrollers and single-board computers that require external SPI-based flash memory.

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Key Features

4M-bit / 512KB Serial Flash Memory: Ideal for code or data storage in embedded systems.
Fast SPI Interface: Operates at up to 104 MHz clock speed.
Flexible Erase Architecture: Supports uniform 4KB sectors, and larger 32KB / 64KB block erase operations.
Durable & Reliable: Over 100,000 write/erase cycles with >20 years of data retention.
Low Power Consumption: Optimized for battery-powered systems.
Power LED Indicator (D1): Helps monitor power state visually.

Technical Specifications

Model: Winbond W25Q40CLSNIG
Input Voltage: 3.3V – 5V
Functions: Serial Flash Memory
Memory Size: 4 Mbit (512KB)
Speed: Up to 104 MHz
Interface: SPI
Endurance: 100,000+ write/erase cycles
Data Retention: > 20 years
Operating Temperature: -40°C ~ +85°C
Board Dimensions: 20mm x 20mm