This part is a kind of semiconductor called UPC177.

Function of this product has UPC177.

Manufacturers : ETC

Image and pinout :

Some of the text within the PDF file :

http://www.DataSheet4U.net/ datasheet pdf - http://www.DataSheet4U.net/ http://www.DataSheet4U.net/ datasheet pdf - http://www.DataSheet4U.net/ [ ... ]

UPC177 PDF Datasheet Download