This part is a kind of semiconductor called 24C04.

Function of this product has ELECTRICALLY ERASABLE PROGRAMMABLE ROM 512 X 8 BIT EEPROM.

Manufacturers : Turbo IC

Image and pinout :

Some of the text within the PDF file :

Turbo IC, Inc. 24C04 PRODUCT INTRODUCTION CMOS I²C 2-WIRE BUS 4K ELECTRICALLY ERASABLE PROGRAMMABLE ROM 512 X 8 BIT EEPROM FEATURES : • Power Supply Voltage Single Vcc for Read and Programming (Vcc = 2.7 V to 5.5 V) • Low Power (Isb = 2µa @ 5.5 V) • I²C Bus, 2-Wire Serial Interface • Support Byte Write and Page Write (16 Bytes) • Automatic Page write Operation (maximum 10 ms) Internal Control Timer Internal Data Latches for 16 Bytes • High Reliability CMOS Technology with EEPROM Cell Endurance : 1,000,000 Cycles Data Retention : 100 Years DESCRIPTION: The Turbo IC 24C04 is a serial 4K EEPROM fabricated with Turbo’s proprietary, high reliability, high performance CMOS technology. It’s 4K of memory is organized as 512 x 8 bits. The memory is configure [ ... ]

24C04 PDF Datasheet Download