This part is a kind of semiconductor called AM29F800B.

Function of this product has Sector Erase Flash Memory.

Manufacturers : AMD

Image and pinout :

Some of the text within the PDF file :

PRELIMINARY Am29F800T/Am29F800B 8 Megabit (1,048,576 x 8-Bit/524,288 x 16-Bit) CMOS 5.0 Volt-only, Sector Erase Flash Memory DISTINCTIVE CHARACTERISTICS s 5.0 V ± 10% for read and write operations Minimizes system level power requirements s Compatible with JEDEC standards Pinout and software compatible with single-power-supply flash Superior inadvertent write protection s Package options 44-pin SO 48-pin TSOP s Minimum 100,000 write/erase cycles guaranteed s High performance 70 ns maximum access time s Sector erase architecture One 16 Kbyte, two 8 Kbytes, one 32 Kbyte, and fifteen 64 Kbytes Any combination of sectors can be erased. Also supports full chip erase. s Sector protection Hardware method that disables any combination of s [ ... ]

AM29F800B PDF Datasheet Download