256 Kbit SPI EEPROM for industrial parameter storage
The STMicroelectronics M95256-RDW6TP is a 256 Kbit serial EEPROM with an SPI interface, organized as 32K x 8 bits. It is designed for non-volatile storage of configuration parameters, calibration constants, and firmware update staging in systems that need to retain data through power cycles. The 20 MHz SPI clock rate allows fast read and write access, while the 5 ms write cycle time per page sets the practical throughput for data logging or field updates.