This part is a kind of semiconductor called AT2005B.

Function of this product has AT2005B.

Manufacturers : ATE

Image and pinout :

Some of the text within the PDF file :

AT 2005B ATE 先进科技电子有限公司 1/6 AT 2005B BLOCK DIAGRAM ATE 先进科技电子有限公司 2/6 AT 2005B ATE 先进科技电子有限公司 3/6 AT 2005B ATE 先进科技电子有限公司 4/6 AT 2005B ATE 先进科技电子有限公司 5/6 AT 2005B ATE 先进科技电子有限公司 6/6 [ ... ]

AT2005B PDF Datasheet Download