X9279 Datasheet (Intersil) - Digitally Potentiometer

X9279, Digitally Potentiometer

POSSIOBBLISSELOS9LU5E8BT1SE0T,PIITSRULODT9DEa5U8tPa1CR1STOhDeUetCT X9279 Single Supply/Low Power/256-Tap/2-Wire Bus September 23, 2009 FN8175.4 Single Digitally-Controlled (XDCP™) Potentiometer The X9279 integrates a single digitally controlled potentiometer (XDCP) on a monolithic CMOS integrated circuit.

The digital controlled potentiometer is implemented using 255 resistive elements in a series array.

Between each element are tap points connected to the wiper terminal through switches.

The

X9279 Features

* 256 Resistor Taps

* 2-Wire Serial Interface for Write, Read, and Transfer Operations of the Potentiometer

* Wiper Resistance, 100 Typical @ 5V

* 16 Non-volatile Data Registers for Each Potentiometer

* Non-volatile Storage of Multiple Wiper Positions