Microchip Technology, Inc. Memory AT28HC64B-70PC

The AT28HC64B-70PC is a high-performance electrically-erasable and programmable read-only memory (EEPROM) with a capacity of 64K bits, organized as 8,192 words of 8 bits each. It features a fast read access time of 70 ns and supports automatic page write operations, allowing for the writing of 1 to 64 bytes of data simultaneously. The maximum page write cycle time is 10 ms, with an optional faster time of 2 ms. This EEPROM operates with a single 5 V ¬±10% supply and has low power dissipation, with an active current of 40 mA and a standby current of 100 ¬µA. It is designed with hardware and software data protection features, ensuring data integrity during write operations. The device includes a DATA polling mechanism for end-of-write detection and is built using high-reliability CMOS technology, offering an endurance of 100,000 cycles and data retention of up to 10 years. The AT28HC64B-70PC is compatible with both CMOS and TTL logic levels and is available in various package types, including 28-lead PDIP, SOIC, and PLCC. It is suitable for commercial applications with an operating temperature range of 0¬8C to 70¬8C.