This part is a kind of semiconductor called AN6650.

Function of this product has Linear Integrated Circuit.

Manufacturers : Wing Shing Computer

Image and pinout :

Some of the text within the PDF file :

AN6650 LINEAR INTEGRATED CIRCUIT MOTOR SPEED CONTROL CIRCUIT DESCRIPTION The AN6650 is a monolithic integrated circuit, designed for the tape recorder. SOP-8 FEATURES *Wide operating supply voltage: Vcc=1.8V-7V *Few external components *Easy speed control mode DIP-8 BLOCK DIAGRAM Comp. Input VREFVREF+ VCC 4 1kΩ 1 2 Reference Voltage 3 Start Circuit 10kΩ 10kΩ Motor 7 8 Phase 5 GND 6 GND ABSOLUTE MAXIMUM RATINGS (Ta=25°C) PARAMETER Supply Voltage Terminal Voltage Terminal 8 Voltage Supply Current Terminal 7 Current Power Dissipation DIP-8 SOP-8 Operating Temperature Storage Temperature *Test Time<5µs SYMBOL VCC Vn(n=1,2,3,4) V8 ICC* I7 PD VALUE 7.5 -0.5 to 7.5 -0.5 to 1 1000 1000 750 360 -20 to 70 -40 to 150 UNIT V V V mA mA mW TOPR TSTQ °C [ ... ]

AN6650 PDF Datasheet Download