Microchip Mcp4013T-502E/ch.
DIGITAL POTENTIOMETER, 5kohm, 64STEPS, Single, 6-SOT-23; End To End Resistance:5kohm; No. of Pots:Single; Control Interface:Up, Down; Track Taper:Linear; Resistance Tolerance:± 20%; Supply Voltage Min:1.8V; Supply Voltage Max:5.5V