This part is a kind of semiconductor called aPR33A3.

Function of this product has (aPR33A1 - aPR33A3) Fixed 1/ 2/ 4/ 8 Message Mode.

Manufacturers : APLUS

Image and pinout :

Some of the text within the PDF file :

Integrated Circuits Inc. aPR33A1/aPR33A2/aPR33A3 aPR33A1 / aPR33A2 / aPR33A3 Fixed 1/ 2/ 4/ 8 Message Mode (C2.0) Datasheet Recording voice IC APLUS INTEGRATED CIRCUITS INC. Address: 3 F-10, No. 32, Sec. 1, Chenggung Rd., Taipei, Taiwan 115, R.O.C. TEL: 886-2-2782-9266 FAX: 886-2-2782-9255 WEBSITE : http://www.aplusinc.com.tw Technology E-mail: service@aplusinc.com.tw Sales E-mail: sales@aplusinc.com.tw Ver. B 1/24 1/17/2013 Free Datasheet http:// Integrated Circuits Inc. FEATURES aPR33A1/aPR33A2/aPR33A3 Operating Voltage Range: 3V ~ 6.5V Single Chip, High Quality Audio/Voice Recording & Playback Solution No External ICs Required Minimum External Components User Friendly, Easy to Use Operation Programming & Development Systems Not Required 170/ 340/ 680 sec. V [ ... ]

aPR33A3 PDF Datasheet Download