1-/2-/4-Channel Digital Potentiometers 32-Tap. Nonvolatile. Linear-Taper Digital Potentiometers in SOT23 10K DIGITAL POTENTIOMETER, 3-WIRE SERIAL CONTROL INTERFACE, 256 POSITIONS, PDSO8 2-Channel/ 256-Position Digital Potentiometer 4-Channel Digital Potentiometers(氓??茅??茅??忙?掳氓颅?莽?碌盲陆?氓?篓)