This part is a kind of semiconductor called SPCP168A.

Function of this product has USB Optical Mouse SoC.

Manufacturers : Sunplus

Image and pinout :

Some of the text within the PDF file :

SPCP168A (C3145) USB Optical Mouse SoC Preliminary Dec. 13, 2010 Version 1.2 Sunplus Innovation Technology Inc. reserves the right to change this documentation without prior notice. this document. Information provided by Sunplus Innovation No responsibility is Technology Inc. is believed to be accurate and reliable. However, Sunplus Innovation Technology Inc. makes no warranty for any errors which may appear in Contact Sunplus Innovation Technology Inc. to obtain the latest version of device specifications before placing your order. assumed by Sunplus Innovation Technology Inc. for any infringement of patent or other rights of third parties which may result from its use. In addition, SunplusIT products are not authorized for use as critical components in life support devices/ systems o [ ... ]

SPCP168A PDF Datasheet Download