DESCRIPTION
The CAT25010/20/40 are 1-Kb/2-Kb/4-Kb Serial CMOS EEPROM devices internally organized as 128x8/256x8/512x8 bits. They feature a 16-byte page write buffer and support the Serial Peripheral Interface (SPI) protocol.

FEATURES
■ 10 MHz SPI compatible
■ 1.8V to 5.5V supply voltage range
■ SPI modes (0,0) & (1,1)
■ 16-byte page write buffer
■ Self-timed write cycle
■ Hardware and software protection
■ Block write protection
   – Protect 1/4, 1/2 or entire EEPROM array
■ Low power CMOS technology
■ 1,000,000 program/erase cycles
■ 100 year data retention
■ Industrial and Extended temperature range
■ RoHS-compliant 8-lead PDIP, SOIC, TSSOP and
   8-pad TDFN packages