This part is a kind of semiconductor called 29EE512.
Function of this product has SST29EE512.
Manufacturers : SST
Image and pinout :

Some of the text within the PDF file :
512 Kilobit (64K x8) Page-Mode EEPROM SST29EE512 / SST29LE512 / SST29VE512 FEATURES: • Single Voltage Read and Write Operations – 5.0V-only for SST29EE512 – 3.0-3.6V for SST29LE512 – 2.7-3.6V for SST29VE512 • Superior Reliability – Endurance: 100,000 Cycles (typical) – Greater than 100 years Data Retention • Low Power Consumption – Active Current: 20 mA (typical) for 5V and 10 mA (typical) for 3.0/2.7V – Standby Current: 10 µA (typical) • Fast Page-Write Operation – 128 Bytes per Page, 512 Pages – Page-Write Cycle: 5 ms (typical) – Complete Memory Rewrite: 2.5 sec (typical) – Effective Byte-Write Cycle Time: 39 µs (typical) Data Sheet • Fast Read Access Time – 5.0V-only operation: 70 and 90 ns – 3.0-3.6V operation: 150 and 200 ns – 2.7-3.6V operati [ ... ]
29EE512 PDF Datasheet Download
