DESCRIPTION
The CAT25080/25160 are 8-Kb/16-Kb Serial CMOS EEPROM devices internally organized as 1024x8/2048x8 bits. They feature a 32-byte page write buffer and support the Serial Peripheral Interface (SPI) protocol. The device is enabled through a Chip Select (CS ¯¯ ) input. In addition, the required bus signals are a clock input (SCK), data input (SI) and data output (SO) lines. The HOLD ¯¯¯¯¯ input may be used to pause any serial communication with the CAT25080/25160 device. These devices feature software and hardware write protection, including partial as well as full array protection.

FEATURES
■ 10 MHz SPI compatible
■ 1.8V to 5.5V supply voltage range
■ SPI modes (0,0) & (1,1)
■ 32-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 temperature range
■ RoHS-compliant 8 lead PDIP, SOIC, TSSOP and 8-pad TDFN, UDFN packages