Datasheet > X93256

X93256

更新时间： 2022-11-27 05:51:26

品牌	Logo	应用领域
英特矽尔 - INTERSIL		电位器
页数	文件大小	规格书
9页	211K
描述
Dual Digitally Controlled Potentiometers

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X93256 数据手册

X93256

Data Sheet

March 4, 2005

FN8188.0

DESCRIPTION

Dual Digitally Controlled Potentiometers

(XDCPs™)

The Intersil X93256 is a dual digitally controlled

potentiometer (XDCP). The device consists of two

resistor arrays, wiper switches, a control section, and

nonvolatile memory. The wiper positions are controlled

by individual Up/Down interfaces.

FEATURES

• Dual solid-state potentiometers

• Individual Up/Down interfaces

• 32 wiper tap points per potentiometer

—Wiper position stored in nonvolatile memory

and recalled on power-up

• 31 resistive elements per potentiometer

—Temperature compensated

A potentiometer is implemented by a resistor array

composed of 31 resistive elements and a wiper switching

network. The position of each wiper element is controlled

by a set of independent 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.

—Maximum resistance tolerance of ± 25%

—Terminal voltage, 0 to V

• Low power CMOS

—V

= 2.7 V - 5.5 V.

Each potentiometer is connected as a three-terminal

variable resistor and can be used in a wide variety of

applications including:

—Active current, 200µA typical per potentiometer

—Standby current, 4µA max per potentiometer

• High reliability

—Endurance 200,000 data changes per bit

—Register data retention, 100 years

– bias and gain control

– LCD Contrast Adjustment

• R

• Packages

value = 12.5kΩ, 50kΩ

TOTAL

—14-lead TSSOP

BLOCK DIAGRAM

Detailed Single Potentiometer Description

General Description

U/D

INC

(Supply Voltage)

30K

5-Bit

Up/Down

Counter

5-Bit

Nonvolatile

Memory

Up/Down

One

Thirty

Two

(U/D & U/D )

Transfer

Gates

Resistor

Array

Control

and

Memory

Increment

Store and

Control

Recall

Decoder

(INC & INC )

Device Select

(CS & CS )

Circuitry

(Ground)

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

1-888-INTERSIL or 1-888-352-6832 | Intersil (and design) is a registered trademark of Intersil Americas Inc.

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

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