X9428WPI datasheet(1/20 Pages) XICOR

tên linh kiện	X9428WPI

Giải thích chi tiết về linh kiện	Single Digitally Controlled Potentiometer

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REV 1.1.5 7/8/03

Characteristics subject to change without notice.

1 of 20

www.xicor.com

X9428

Single Digitally Controlled Potentiometer (XDCP™)

FEATURES

• Solid state potentiometer

• 2-wire serial interface

• Register oriented format

—Direct Read/Write/Transfer Wiper Position

—Store as many as Four Positions per

Potentiometer

• Power supplies

—VCC = 2.7V to 5.5V

—V+ = 2.7V to 5.5V

—V– = –2.7V to –5.5V

• Low power CMOS

—Standby current < 1µA

—Ideal for Battery Operated Applications

• High reliability

—Endurance–100,000 Data Changes per Bit per

Register

—Register Data Retention–100 years

• 4-bytes of nonvolatile memory

• 10K Ohm resistor array

• Resolution: 64 taps each potentiometer

• SOIC and TSSOP packages

DESCRIPTION

The

X9428

integrates

a

digitally

controlled

potentiometers

(XDCP)

on

a

monolithic

CMOS

integrated microcircuit.

The digitally controlled potentiometer is implemented

using 63 resistive elements in a series array. Between

each element are tap points connected to the wiper

terminal through switches. The position of the wiper on

the array is controlled by the user through the 2-wire

bus interface. Each potentiometer has associated with

it a volatile Wiper Counter Register (WCR) and 4

nonvolatile Data Registers (DR0:DR3) that can be

directly written to and read by the user. The contents of

the WCR controls the position of the wiper on the

resistor array through the switches. Power up recalls

the contents of DR0 to the WCR.

The

XDCP

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, and signal processing.

BLOCK DIAGRAM

R0 R1

R2 R3

Wiper

Counter

Register

(WCR)

Interface

and

Control

Circuitry

SCL

SDA

A0

A2

A3

VH/RH

VL/RL

Data

8

VW/RW

WP

VCC

VSS

V+

V–

Low Noise/Low Power/2-Wire Bus

APPLICATION NOTES

AVAILABLE

AN99 • AN115 • AN120 • AN124 • AN133 • AN134 • AN135

Số phần tương tự - X9428WPI

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Intersil Corporation	X9428WPI	349Kb / 20P	Single Digitally Controlled Potentiometer March 8, 2005
Intersil Corporation	X9428WPI-2.7	349Kb / 20P	Single Digitally Controlled Potentiometer March 8, 2005

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Mô tả tương tự - X9428WPI

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