The 25LC256-E/MF is a 256 Kbit (32K x 8) SPI Serial EEPROM manufactured by Microchip Technology. It has an access time of <300ns and a clock rate up to 10MHz. It is organized as 32K words of 8 bits each, and is offered in an 8-pin SOIC package. The 25LC256-E/MF has a byte-wise page write capability for up to 64 bytes of data. Its storage temperature range is from -40°C to +85°C, and it is rated for 100,000 write cycles. Other features include write protection, content protection, page write protection, and power-down protection. The 25LC256-E/MF is industrial-grade and is designed for applications requiring a high level of reliability.