Microchip’s 24AA64/24FC64/24LC64 family of devices are 64 Kbit I²C™ Serial EEPROMs available in a variety of package, temperature and power supply variants.

Single-Supply with operation down to 1.7V for 24AA64/24FC64 devices, 2.5V for 24LC64 devices
Low-Power CMOS Technology: Maximum Active Current 3 mA, Maximum Standby Current 1μA
2-Wire Serial Interface, I2C™ compatible
Packages with 3 Address Pins are Cascadable up to 8 Devices
Schmitt Trigger Inputs for Noise Suppression
Output Slope Control to Eliminate Ground Bounce
100 kHz and 400 kHz Clock Compatibility
1 MHz Clock for 24FC64 models
Page Write Time 5 ms (maximum)
Self-timed Erase/Write Cycle
32-Byte Page Write Buffer
Hardware Write-Protect
ESD Protection >4,000V
More than 1 Million Erase/Write Cycles
Data Retention >200 Years

EEPROM Serial Access - Microchip