The Microchip AT24C64D series EEPROM is I²C compatible (2wire) 64Kbit serial read only EEPROM. The device’s cascading feature allows up to eight devices to share a common 2‑wire bus. The device is optimized for use in many industrial and commercial applications where low‑power and low‑voltage operation are essential.

Industrial temperature range is -40°C to +85°C
Schmitt triggers, filtered inputs for noise suppression
Write‑protect pin for full array hardware data protection
32-Byte Page Write Mode
Random and sequential read modes
Bidirectional data transfer protocol.