1

®

FN8183.6

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

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XDCP is a trademark of Intersil Americas, Inc. Copyright Intersil Americas Inc. 2004-2005, 2008, 2009. All Rights Reserved

All other trademarks mentioned are the property of their respective owners.

X9317

Low Noise, Low Power, 100 Taps

Digitally Controlled Potentiometer

(XDCP™)

The Intersil X9317 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 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 nonvolatile

memory and then be recalled upon a subsequent power-up

operation.

The device can be used as a three-terminal potentiometer

for voltage control or as a two-terminal variable resistor for

current control in a wide variety of applications.

Pinouts

X9317

(8 LD TSSOP)

TOP VIEW

X9317

(8 LD PDIP, 8 LD SOIC, 8 LD MSOP)

TOP VIEW

Features

• Solid-State Potentiometer

• 3-Wire Serial Up/Down Interface

• 100 Wiper Tap Points

- Wiper Position Stored in Nonvolatile Memory and

Recalled on Power-up

• 99 Resistive Elements

- Temperature Compensated

- End-to-end Resistance Range ±20%

• Low Power CMOS

- Standby Current <5µA

• High Reliability

- Endurance, 100,000 Data Changes per Bit

- Register Data Retention, 100 years

• Packages

- 8 Ld SOIC, PDIP, TSSOP, and MSOP

• Pb-Free Available (RoHS Compliant)

Applications

• LCD Bias Control

• DC Bias Adjustment

• Gain and Offset Trim

• Laser Diode Bias Control

• Voltage Regulator Output Control

INC

CS

1

2

3

4

8

7

6

5

X9317

U/D

INC

U/D

1

2

3

4

8

7

6

5

X9317

CS

Data Sheet

December 16, 2009