This part is a kind of semiconductor called AD5207.

Function of this product has 2-Channel/ 256-Position Digital Potentiometer.

Manufacturers : Analog Devices

Image and pinout :

Some of the text within the PDF file :

a FEATURES 256-Position, 2-Channel Potentiometer Replacement 10 k⍀, 50 k⍀, 100 k⍀ Power Shut-Down, Less than 5 ␮A 2.7 V to 5.5 V Single Supply ؎2.7 V Dual Supply 3-Wire SPI-Compatible Serial Data Input Midscale Preset During Power-On APPLICATIONS Mechanical Potentiometer Replacement Stereo Channel Audio Level Control Instrumentation: Gain, Offset Adjustment Programmable Voltage-to-Current Conversion Programmable Filters, Delays, Time Constants Line Impedance Matching Automotive Electronics Adjustment 2-Channel, 256-Position Digital Potentiometer AD5207 FUNCTIONAL BLOCK DIAGRAM A1 W1 B1 A2 W2 B2 SHDN VDD VSS CS CLK SDI DGND RDAC1 REGISTER R RDAC2 REGISTER R LOGIC AD5207 POWERON RESET 8 SERIAL INPUT REGISTER SDO GENERAL DESCRIPTION The AD5207 provides dual channel, 25 [ ... ]

AD5207 PDF Datasheet Download