The Intersil X9315 is a digitally controlled potentiometer

(XDCP). The device consists of a resistor array, wiper

switches, a control section, and nonvolatile memory. The

wiper position is controlled by a 3-wire interface.

The potentiometer is implemented by a resistor array

composed of 31 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 nonvolatile

memory and then be recalled upon a subsequent power-up

operation.

The device can be used as a three-terminal potentiometer or

as a two-terminal variable resistor in a wide variety of

applications including:

• Control

• Parameter Adjustments

• Signal Processing

Features

• Solid-state potentiometer

• 3-wire serial interface

• 32 wiper tap points

- Wiper position stored in nonvolatile memory and

recalled on power-up

• 31 resistive elements

- Temperature compensated

- End to end resistance range ± 20

- Terminal voltage, 0 to VCC

• Low power CMOS

- VCC = 2.7V or 5V

- Active current, 80/400µA max.

- Standby current, 5µA max.

• High reliability

- Endurance, 100,000 data changes per bit

- Register data retention, 100 years

• RTOTAL values = 10kΩ, 50kΩ, 100kΩ

• Packages

- 8 Ld SOIC, MSOP and PDIP

• Pb-free available (RoHS compliant)