Microchip Technology, Inc. Memory AT28C256F-15LM/883-815

The Microchip 23AC2642 is a 256Kbit EEPROM with a memory configuration of 32,768 x 8 bits. It operates over a wide temperature range of -55°C to 125°C, making it suitable for harsh environments. The device features a fast read access time of 150 ns and supports automatic page write operations with a maximum page write cycle time of 10 ms. It allows for writing between 1 to 64 bytes in a single operation. Power consumption is low, with an active current of 50 mA and a CMOS standby current of 300 µA. The EEPROM includes hardware and software data protection features, as well as data polling for end-of-write detection. It is built using high-reliability CMOS technology, offering an endurance of up to 100,000 write cycles and a data retention period of 10 years. The device requires a single 5V ± 10% supply and is compatible with both CMOS and TTL logic levels. It is available in multiple package types, including 32-Lead CERDIP and 32-Lead Flatpack.