24LC64B in 24LCxx / AT24Cxx I2C EEPROM Family
The 24LC64B is a 64-Kbit I2C serial Electrically Erasable PROM (EEPROM) manufactured primarily by Microchip Technology. Operating over a wide voltage range of 2.5V to 5.5V, it serves as a robust solution for non-volatile data storage in systems where board space and low power consumption are critical. This sub-family utilizes an industry-standard two-wire serial interface, supporting multiple devices on a single bus with hardware address pins, making it a staple for configuration storage and parameter logging.
Variants within the 24LC64B family primarily differ by package type and temperature rating. Common packages include 8-lead SOIC, MSOP, TSSOP, PDIP, and the space-saving TDFN or UDFN. Temperature grades range from industrial (-40°C to +85°C) to extended/automotive (-40°C to +125°C). Additionally, certain 'AA' or 'LC' prefixes indicate specific operating voltage ranges, with the 'LC' variant specifically optimized for the 2.5V to 5.5V window.
