W25Q40CLSSIG in Winbond W25Q SPI NOR Flash Family
The W25Q40CLSSIG belongs to Winbond's SpiFlash family, offering a 4M-bit (512K-byte) serial flash memory solution for systems with limited space, pins, and power requirements. Manufactured by Winbond Electronics, this family utilizes the Serial Peripheral Interface (SPI) to provide high-performance code shadowing to RAM, execute-in-place (XIP) capabilities, and reliable data storage. It is a standard choice for storing boot code and configuration data in consumer electronics and industrial embedded systems.
Variants in This Sub-Family
Variants within the W25Q40CL sub-family are distinguished primarily by packaging, temperature ratings, and voltage ranges. The 'SS' suffix denotes the 208-mil SOIC-8 package, while other variants may offer 150-mil SOIC-8 or USON8 footprints. Temperature grades typically range from Industrial (-40°C to +85°C) to Industrial Plus (-40°C to +105°C). Some variants may also include unique identification numbers for enhanced security and tracking in the field.
