This part is a kind of semiconductor called EN25T80.

Function of this product has 8-Mbit Uniform Sector / Serial Flash Memory.

Manufacturers : EON

Image and pinout :

Some of the text within the PDF file :

EN25T80 EN25T80 8 Mbit Uniform Sector, Serial Flash Memory with Dual Data Mode FEATURES • Single power supply operation - Full voltage range: 2.7-3.6 volt • 8 Mbit Serial Flash - 8 M-bit/1024 K-byte/4096 pages - 256 bytes per programmable page • High performance - 100MHz clock rate - dual data mode • Low power consumption - 5 mA typical active current - 1 μA typical power down current • Uniform Sector Architecture: 256 sectors of 4-Kbyte 16 blocks of 64-Kbyte Any sector or block can be erased individually - Write Protect all or portion of memory via software - Enable/Disable protection with WP# pin • High performance program/erase speed Page program time: 1.5ms typical Sector erase time: 150ms typical Block erase time 800ms typical Chip erase time: 10 Sec [ ... ]

EN25T80 PDF Datasheet Download