X9271 Datasheet (Renesas) - Digitally Potentiometer

X9271, Digitally Potentiometer

PIN NUMBER 1 2 3 4 5 6 7 8 9 10 11 12 13 14 PIN NAME SO A0 NC CS SCK SI VSS WP A1 HOLD RW RH RL VCC FN8174 Rev 5.00 October 15, 2015 Serial Data Output Device Address No Connect Chip Select Serial Clock Serial Data Input System Ground Hardware Write Protect Device Address Device Select.

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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 controlle

X9271 Features

* 256 Resistor Taps

* SPI Serial Interface for Write, Read, and Transfer Operations of Potentiometer

* Wiper Resistance, 100Ω typical at VCC = 5V

* 16 Nonvolatile Data Registers

* Nonvolatile Storage of Multiple Wiper Positions

* Power-on Recall; Loads