Microchip Technology, Inc. Memory AT28HC256F-12SC

The AT28HC256F-12SC is a high-performance electrically erasable and programmable read-only memory (EEPROM) with a capacity of 256K bits, organized as 32,768 words by 8 bits. It features a fast read access time of 70 ns and supports automatic page write operations with a maximum page write cycle time of 3 ms or 10 ms, allowing for the writing of 1 to 64 bytes simultaneously. The device operates with a single 5V ± 10% supply and has low power dissipation, with an active current of 80 mA and a standby current of 3 mA. The AT28HC256F-12SC is designed for high reliability, utilizing CMOS technology with an endurance of 10^4 to 10^5 cycles and a data retention period of up to 10 years. It includes features such as hardware and software data protection, DATA polling for end-of-write detection, and is compatible with both CMOS and TTL inputs and outputs. The device is available in various package options and is suitable for full military, commercial, and industrial temperature ranges.