This part is a kind of semiconductor called 29LV640.

Function of this product has EN29LV640.

Manufacturers : Eon Silicon Solution

Image and pinout :

Some of the text within the PDF file :

EN29LV640 EN29LV640 64 Megabit (4M x 16-bit ) CMOS 3.0 Volt-only, Uniform Sector Flash Memory FEATURES • Single power supply operation - Full voltage range: 2.7 to 3.6 volts for read, erase and program operations • Low power consumption (typical values at 5 MHz) - 9 mA typical active read current - 20 mA typical program/erase current - Less than 1 μA current in standby or automatic sleep mode. „ Software features: • Sector Group Protection - Provide locking of sectors to prevent program or erase operations within individual sectors - Additionally, temporary Sector Group Unprotect allows code changes in previously protected sectors. • Standard DATA# polling and toggle bits feature • Unlock Bypass Program command supported • Sector Erase Suspend / Resume [ ... ]

29LV640 PDF Datasheet Download