FN8177 Rev 7.00

Page 1 of 12

October 7, 2015

FN8177

Rev 7.00

October 7, 2015

X9313

Digitally Controlled Potentiometer (XDCP™) Linear, 32 Taps, 3 Wire Interface,

Terminal Voltages ± VCC

DATASHEET

The Intersil X9313 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%

• Low power CMOS

- Active current, 3mA max.

- Standby current, 500µA max.

• High reliability

- Endurance, 100,000 data changes per bit

- Register data retention, 100 years

• Packages

- 8 Ld SOIC, 8 Ld MSOP and 8 Ld PDIP

• Pb-free available (RoHS compliant)

Block Diagram

5-BIT

NONVOLATILE

MEMORY

STORE AND

RECALL

CONTROL

CIRCUITRY

ONE OF

OUTPUTS

RESISTOR

ARRAY

U/D

INC

CS

TRANSFER

GATES

THIRTY-TWO

CONTROL

UP/DOWN

GENERAL

DETAILED

0

1

2

28

29

30

31

(U/D)

INCREMENT

(INC)

DEVICE SELECT

(CS)

AND

MEMORY

5-BIT

UP/DOWN

COUNTER

TIME

DECODER

ACTIVE

AT A