CAT25C11/03/05/09/17 1K/2K/4K/8K/16K SPI Serial CMOS EEPROM is a 10 MHz SPI compatible EEPROM that operates from 1.8 to 6.0 volts and is produced by Catalyst Semiconductor. It features hardware and software protection, low power CMOS technology, commercial, industrial, automotive, and extended temperature ranges, 1,000,000 program/erase cycles, 100 years of data retention, self-timed write cycle, 8-pin DIP/SOIC, 8/14-pin TSSOP, and 8-pin MSOP.