This part is a kind of semiconductor called 39VF010.

Function of this product has SST39VF010.

Manufacturers : Silicon Storage Technology

Image and pinout :

Some of the text within the PDF file :

512 Kbit / 1 Mbit / 2 Mbit / 4 Mbit (x8) Multi-Purpose Flash SST39LF512 / SST39LF010 / SST39LF020 / SST39LF040 SST39VF512 / SST39VF010 / SST39VF020 / SST39VF040 SST39LF/VF512 / 010 / 020 / 0403.0 & 2.7V 512Kb / 1Mb / 2Mb / 4Mb (x8) MPF memories Data Sheet FEATURES: • Organized as 64K x8 / 128K x8 / 256K x8 / 512K x8 • Single Voltage Read and Write Operations – 3.0-3.6V for SST39LF512/010/020/040 – 2.7-3.6V for SST39VF512/010/020/040 • Superior Reliability – Endurance: 100,000 Cycles (typical) – Greater than 100 years Data Retention • Low Power Consumption: – Active Current: 10 mA (typical) – Standby Current: 1 µA (typical) • Sector-Erase Capability – Uniform 4 KByte sectors • Fast Read Access Time: – 45 ns for SST39LF512/010/020/040 – 55 ns for SST39LF020/0 [ ... ]

39VF010 PDF Datasheet Download