AT28HC256F-90PC [Microchip]

The AT28HC256 is a 256Kbit (32K x 8) EEPROM with 70 ns access time. It features automatic page write operation (1 to 64 bytes), low power dissipation (80 mA active, 3 mA standby), hardware and software data protection, and high reliability. The device operates from a single 5V ± 10% supply and is available in multiple package types. It supports byte and page write operations with internal control timer and DATA Polling for end of write detection.