Advanced CAT24C161/162(16K), CAT24C081/082(8K) CA.
Catalyst Semiconductor
CAT24C161 - Serial CMOS E2PROM / Precision Reset Controller and Watchdog Timer
Advanced CAT24C161/162(16K), CAT24C081/082(8K) CAT24C041/042(4K), CAT24C021/022(2K) Supervisory Circuits with I2C Serial CMOS E2PROM, Precision Reset.