This part is a kind of semiconductor called 24C02A-ESL.

Function of this product has 1K/2K/4K 5.0V I2C Serial EEPROMs.

Manufacturers : MicrochipTechnology

Image and pinout :

Some of the text within the PDF file :

24C01A/02A/04A 1K/2K/4K 5.0V I2C™ Serial EEPROMs FEATURES • • • • • • • • • • • Low power CMOS technology Hardware write protect Two wire serial interface bus, I2C™ compatible 5.0V only operation Self-timed write cycle (including auto-erase) Page-write buffer 1ms write cycle time for single byte 1,000,000 Erase/Write cycles guaranteed Data retention >200 years 8-pin DIP/SOIC packages Available for extended temperature ranges - Commercial (C): 0˚C to +70˚C - Industrial (I): -40˚C to +85˚C - Automotive (E): -40˚C to +125˚C PACKAGE TYPES DIP A0 A1 A2 VSS 8-lead SOIC 1 2 3 4 24C01A 24C02A 24C04A 8 7 6 5 VCC WP* SCL SDA A0 A1 A2 VSS 1 2 3 4 24C01A 24C02A 24C04A 8 7 6 5 VCC WP* SCL SDA DESCRIPTION The Microchip Technology Inc. 24C01A/02A/04A is a 1K/2K/4K bi [ ... ]

24C02A-ESL PDF Datasheet Download