This part is a kind of semiconductor called CAT24C32.

Function of this product has 32kb I2C CMOS Serial EEPROM.

Manufacturers : ON Semiconductor

Image and pinout :

Some of the text within the PDF file :

CAT24C32 32-Kb I2C CMOS Serial EEPROM Description The CAT24C32 is a 32−Kb CMOS Serial EEPROM devices, internally organized as 4096 words of 8 bits each. It features a 32−byte page write buffer and supports the Standard (100 kHz), Fast (400 kHz) and Fast−Plus (1 MHz) I2C protocol. External address pins make it possible to address up to eight CAT24C32 devices on the same bus. Features • Supports Standard, Fast and Fast−Plus I2C Protocol • 1.7 V to 5.5 V Supply Voltage Range • 32−Byte Page Write Buffer • Hardware Write Protection for Entire Memory • Schmitt Triggers and Noise Suppression Filters on I2C Bus Inputs (SCL and SDA) • Low Power CMOS Technology • 1,000,000 Program/Erase Cycles • 100 Year Data Retention • Industrial and Extended Temperature Range • PDIP [ ... ]

CAT24C32 PDF Datasheet Download