1

®

FN8222.3

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

1-888-INTERSIL or 1-888-468-3774

XDCP is a trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2005, 2006, 2009. All Rights Reserved

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

X9C102, X9C103, X9C104, X9C503

Digitally Controlled Potentiometer

(XDCP™)

The X9C102, X9C103, X9C104, X9C503 are Intersils’

digitally controlled (XDCP) potentiometers. The device

consists of a resistor array, wiper switches, a control section,

and non-volatile 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.

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.

Pinout

X9C102, X9C103, X9C104, X9C503

(8 LD SOIC, 8 LD PDIP)

TOP VIEW

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, ±5V

• Low Power CMOS

- Active Current, 3mA max.

- Standby Current, 750µA max.

• High Reliability

- Endurance, 100,000 Data Changes per Bit

- Register Data Retention, 100 years

• X9C102 = 1k

Ω

• X9C103 = 10k

Ω

• X9C503 = 50k

Ω

• X9C104 = 100k

Ω

• Packages

- 8 Ld SOIC

- 8 Ld PDIP

• Pb-Free Available (RoHS Compliant)

Block Diagram

CS

INC

U/D

1

2

3

4

8

7

6

5

7-BIT

UP/DOWN

COUNTER

7-BIT

NON-VOLATILE

MEMORY

STORE AND

RECALL

CONTROL

CIRCUITRY

ONE

OF

HUNDRED

DECODER

RESISTOR

ARRAY

U/D

INC

CS

TRANSFER

ONE-

GATES

99

98

97

96

2

1

0

GND

UP/DOWN

(INC)

INCREMENT

DEVICE

(U/D)

(CS)

CONTROL

AND

MEMORY

GENERAL

SELECT

DETAILED

Data Sheet

July 20, 2009