The CAT28LV64W-20 is a surface mount non-volatile parallel EEPROM memory IC manufactured by Catalyst Semiconductor, Inc. It has a SO28 case, and can operate in the temperature range of 0°C to 70°C. The device is powered by a supply voltage of 3V to 3.6V and provides 64K of memory. Its features include: low voltage operation, high write speed, low power consumption, enhanced endurance, and enhanced data retention. The device also features write protection, software data protection and data protection at power-up/power down.