M24C64X-FCU M24C64X-FCP Datasheet 64-Kbit serial I.
STMicroelectronics
M24C64X-FCP - 64-Kbit serial I2C bus EEPROM
M24C64X-FCU M24C64X-FCP Datasheet 64-Kbit serial I²C bus EEPROM with configurable device address and software write protection, delivered in 4-ball CS.