Microchip’s 24AA32AF/24LC32AF family of devices are 32 Kbit I²C™ Serial EEPROMs available in a variety of package, temperature and power supply variants.

Single Supply with Operation down to 1.7V for 24AA32AF devices, 2.5V for 24LC32AF devices
Low-Power CMOS Technology: Read current 400 μA (maximum), Standby current 1 μA (maximum)
2-Wire Serial Interface, I2C™ Compatible
Packages with 3 Address Pins are Cascadable up to Eight Devices
Schmitt Trigger Inputs for Noise Suppression
Output Slope Control to Eliminate Ground Bounce
100 kHz and 400 kHz Clock Compatibility
Page Write Time 5 ms (maximum)
Self-Timed Erase/Write Cycle
32-Byte Page Write Buffer
Hardware Write-Protect for 1/4 Array
ESD Protection >4,000V
More than 1 Million Erase/Write Cycles
Data Retention >200 Years

EEPROM Serial Access - Microchip