CAT24FC65, CAT24FC66 64K-Bit I2C Serial CMOS EEPRO.
CAT24FC65 - (CAT24FC65 / CAT24FC66) 64K-Bit I2C Serial CMOS EEPROM
CAT24FC66 - (CAT24FC65 / CAT24FC66) 64K-Bit I2C Serial CMOS EEPROM