The LE28F4001C is a 512K x8 CMOS sector erase, byte program EEPROM. The LE28F4001C is manufactured using SANYO's proprietary, high performance CMOS Flash EEPROM technology. Breakthroughs in EEPROM cell design and process architecture attain better reliability and manufacturability compared with conventional approaches. The LE28F4001C erases and programs with a 5-volt only power supply. LE28F4001C conforms to JEDEC standard pinouts for byte wide memories and is compatible with existing industry standard EPROM, flash EPROM and EEPROM pinouts.