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X9313ZSI

Digitally Controlled Potentiometer (XDCP™) - Linear, 32 Taps, 3 Wire Interface, Terminal Voltages ± VCC

Intersil 

®

Data Sheet

X9313

Digitally Controlled Potentiometer (XDCP™)

January 15, 2008

FN8177.6

Linear, 32 Taps, 3 Wire Interface, Terminal

Voltages ± VCC

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%

- Terminal voltages, -VCC to +VCC

• Low power CMOS

- VCC = 3V or 5V

- Active current, 3mA max.

- Standby current, 500µA max.

• High reliability

- Endurance, 100,000 data changes per bit

- Register data retention, 100 years

• RTOTAL values = 1kΩ, 10kΩ, 50kΩ

• Packages

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

• Pb-free available (RoHS compliant)

Block Diagram

VCC (SUPPLY VOLTAGE)

DECODER

U/D

5-BIT

INC

UP/DOWN

31

CS

COUNTER

30

RH/VH

UP/DOWN

(U/D)

INCREMENT

(INC)

DEVICE SELECT

(CS)

CONTROL

AND

MEMORY

VSS (GROUND)

GENERAL

RH/VH

RW/VW

RL/VL

VCC

VSS

5-BIT

NONVOLATILE

MEMORY

STORE AND

RECALL

CONTROL

CIRCUITRY

29

28

ONE OF

THIRTY-TWO

OUTPUTS

ACTIVE

AT A

TIME

2

1

0

TRANSFER RESISTOR

GATES

ARRAY

DETAILED

RL/VL

RW/VW

1

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

1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.

XDCP is a trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2005, 2006, 2008. All Rights Reserved

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

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