This part is a kind of semiconductor called 37VF020.

Function of this product has SST37VF020.

Manufacturers : Silicon Storage Technology

Image and pinout :

Some of the text within the PDF file :

512 Kbit / 1 Mbit / 2 Mbit / 4 Mbit (x8) Many-Time Programmable Flash SST37VF512 / SST37VF010 / SST37VF020 / SST37VF040 SST37VF512 / 010 / 020 / 0402.7V-Read 512Kb / 1Mb / 2Mb / 4Mb (x8) MTP flash memories Data Sheet FEATURES: • Organized as 64K x8 / 128K x8 / 256K x8 / 512K x8 • 2.7-3.6V Read Operation • Superior Reliability – Endurance: At least 1000 Cycles – Greater than 100 years Data Retention • Low Power Consumption: – Active Current: 10 mA (typical) – Standby Current: 2 µA (typical) • Fast Read Access Time: – 70 ns – 90 ns • Latched Address and Data • Fast Byte-Program Operation: – Byte-Program Time: 10 µs (typical) – Chip Program Time: 0.6 seconds (typical) for SST37VF512 1.2 seconds (typical) for SST37VF010 2.4 seconds (typical [ ... ]

37VF020 PDF Datasheet Download