This part is a kind of semiconductor called 24C64A.
Function of this product has AT24C64A.
Manufacturers : ATMEL Corporation
Image and pinout :
Some of the text within the PDF file :
www.DataSheet.co.kr Features • Low-Voltage and Standard-Voltage Operation • • • • • • • • • • • • • – 2.7 (VCC = 2.7V to 5.5V) – 1.8 (VCC = 1.8V to 5.5V) Low-Power Devices (ISB = 6 µA @ 5.5V) Available Internally Organized 4096 x 8, 8192 x 8 2-Wire Serial Interface Schmitt Trigger, Filtered Inputs for Noise Suppression Bidirectional Data Transfer Protocol 100 kHz (1.8V) and 400 kHz (2.5V) Clock Rate for AT24C32A 400 kHz (1.8V) Clock Rate for AT24C64A Write Protect Pin for Hardware Data Protection 32-Byte Page Write Mode (Partial Page Writes Allowed) Self-Timed Write Cycle (10 ms max) High Reliability – Endurance: 1 Million Write Cycles – Data Retention: 100 Years Automotive Grade, Extended Temperature and Lead-Free Devices Available 8-lead JEDEC PDIP, [ ... ]