This part is a kind of semiconductor called MXT8208.

Function of this product has USB 2.0 Flash Disk Controller.

Manufacturers : ETC

Image and pinout :

Some of the text within the PDF file :

www.DataSheet.co.kr MXT8208 Datasheet MXT8208 USB 2.0 FLASH DISK CONTROLLER Data Sheet •ÈyÑ_®u5[Pÿ mñW3ÿ g –PQlSø eà_ç[XP¨‹ºW[ Datasheet pdf - http://www.net/ www.DataSheet.co.kr MXT8208 Datasheet KEY FEATURS –  ■ USB 2.0 clock sources using an external 12 MHz crystal Development support – Complete reference design including schematics, BOM and Gerber files ■  Supports Windows XP, Windows 2K, Windows ME, Linux and MacOS. Drivers available for Windows 98 SE ■ USB 2.0 Interface compatible with Mass Storage Device Class Integrated USB 2.0 PHY Supports USB High Speed and Full Speed Suspend and Resume operations Supports all type of NAND Flash devices ST, Hynix, Samsung, Toshiba, Micron, Infineon and Renesas Supports AND, AG-AND, [ ... ]

MXT8208 PDF Datasheet Download