X9221A Datasheet (Renesas) - Dual Digitally Potentiometer

X9221A, Dual Digitally Potentiometer

The X9221A integrates two digitally controlled potentiometers (XDCP) on a monolithic CMOS integrated microcircuit.

The digitally controlled potentiometer is implemented using 63 resistive elements in a series array.

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

X9221A Features

* Two XDCPs in one package

* 2-wire serial interface

* Register oriented format, 8 registers total

* Directly write wiper position

* Read wiper position

* Store as many as four positions per pot

* Instruction format

* Quick transfer of regi