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DATASHEET
X9271
Single Supply/Low Power/256-Tap/SPI Bus Single, Digitally Controlled (XDCP™) Potentiometer
FN8174 Rev 5.00 October 15, 2015
The X9271 integrates a single, digitally controlled potentiometer (XDCP™) on a monolithic CMOS integrated circuit.
The digitally controlled potentiometer is implemented by using 255 resistive elements in a series array. Between each element are tap points connected to the wiper terminal through switches. The position of the wiper on the array is controlled by the user through the SPI bus interface. The potentiometer has associated with it a volatile Wiper Counter Register (WCR) and four nonvolatile data registers that can be directly written to and read by the user.
X9271 Datasheet
