This part is a kind of semiconductor called 24C02.

Function of this product has 2-Wire Serial EEPROM.

Manufacturers : ATMEL

Image and pinout :

Some of the text within the PDF file :

Features • Low-voltage and Standard-voltage Operation • • • • • • • • • • • • • – 2.7 (VCC = 2.7V to 5.5V) – 1.8 (VCC = 1.8V to 5.5V) Internally Organized 128 x 8 (1K), 256 x 8 (2K), 512 x 8 (4K), 1024 x 8 (8K) or 2048 x 8 (16K) Two-wire Serial Interface Schmitt Trigger, Filtered Inputs for Noise Suppression Bidirectional Data Transfer Protocol 100 kHz (1.8V) and 400 kHz (2.7V, 5V) Compatibility Write Protect Pin for Hardware Data Protection 8-byte Page (1K, 2K), 16-byte Page (4K, 8K, 16K) Write Modes Partial Page Writes Allowed Self-timed Write Cycle (5 ms max) High-reliability – Endurance: 1 Million Write Cycles – Data Retention: 100 Years Automotive Grade and Lead-free/Halogen-free Devices Available 8-lead PDIP, 8-lead JEDEC SOIC, [ ... ]

24C02 PDF Datasheet Download