Intersil X9C102SZT1

Description
The X9C102, X9C103, X9C104, and X9C503 are digitally controlled potentiometers (XDCPs) that consist of a resistor array, wiper switches, a control section, and nonvolatile memory. The wiper position is controlled by a three-wire interface.
The potentiometer is implemented by a resistor array composed of 99 resistive elements and a wiper switching network. Between each element and at either end are tap points accessible to the wiper terminal. The position of the wiper element is controlled by the CS, U/D, and INC inputs.
The position of the wiper can be stored in non-volatile memory and then be recalled upon a subsequent power-up operation.

Features
Solid-state potentiometer
Three-wire serial interface
100 wiper tap points
Wiper position stored in non-volatile memory and recalled on power-up
99 resistive elements
Temperature compensated
End-to-end resistance, ±20%
Terminal voltages, 15V
Low power CMOS
Vcc 5V
Active current, 3mA max.
Standby current, 750µA max.
High reliability
Endurance, 100,000 data changes per bit
Register data retention, 100 years

Applications
The device can be used as a three-terminal potentiometer or as a two-terminal variable resistor in a wide variety of applications ranging from control to signal processing to parameter adjustment.