This part is a kind of semiconductor called AT24C02B.

Function of this product has 2-Wire Automotive Temperature Serial EEPROM.

Manufacturers : ATMEL Corporation

Image and pinout :

Some of the text within the PDF file :

NOT RECOMMENDED FOR NEW DESIGNS Replaced by AT24C01C, AT24C02C, AT24C04C, or AT24C08C AT24C01B, AT24C02B AT24C04B, AT24C08B 2-Wire Automotive Temperature Serial EEPROM 1K (128 x 8), 2K (256 x 8), 4K (512 x 8), or 8K (1,024 x 8) Features DATASHEET  Medium-voltage and Standard-voltage Operation ̶ 2.5V (VCC = 2.5V to 5.5V)  Automotive Temperature Range –40C to 125C  Internally Organized 128 x 8 (1K), 256 x 8 (2K), 512 x 8 (4K), or 1,024 x 8 (8K)  2-Wire Serial Interface  Schmitt Trigger, Filtered Inputs for Noise Suppression  Bidirectional Data Transfer Protocol  400kHz (2.5V) Compatibility  Write Protect Pin for Hardware Data Protection  8-byte Page (1K, 2K) or 16-byte Page (4K, 8K) Write Modes  Partial Page Writes are Allowed  Self-timed Write C [ ... ]

AT24C02B PDF Datasheet Download