W25Q40CLSSIG
Overview
The W25Q40CLSSIG is a 4M-bit (512K x 8) Serial Flash memory device that supports Standard, Dual, and Quad SPI interfaces. Operating on a 2.3V to 3.6V supply, it achieves high performance with clock frequencies up to 104 MHz, effectively providing up to 416 MHz equivalent clock rates in Quad SPI mode. This non-volatile NOR flash is housed in a 208-mil 8-pin SOIC package and is designed for applications with limited space and power budgets.
Why Choose This Part
This device offers excellent power efficiency with a low 1uA sleep current and 1mA active current, making it ideal for battery-operated designs. The Quad SPI interface provides significantly higher data throughput than standard serial flash, while the 208-mil SOIC-8 package offers a familiar footprint for easy PCB routing.
Applications
Key Specifications
Getting Started
Integrate this flash into your design by connecting it to a microcontroller's SPI peripheral; ensure the host supports Quad I/O modes to maximize the 104 MHz performance. Logic level translation is required if interfacing with 5V systems, as the supply range is 2.3V to 3.6V. Software development can be accelerated using standard SPI flash libraries available for platforms like STM32 or Arduino.
