X9420WS datasheet(1/20 Pages) XICOR

部件名	X9420WS

功能描述	Single Digitally Controlled (XDCP) Potentiometer

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制造商	XICOR [Xicor Inc.]

网页	http://www.xicor.com

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REV 1.1.6 7/30/02

www.xicor.com

X9420

Single Digitally Controlled (XDCP) Potentiometer

FEATURES

• Solid-State Potentiometer

• SPI serial interface

• Register oriented format

—Direct read/write/transfer wiper positions

—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

• High reliability

—Endurance–100,000 data changes per bit per

register

—Register data retention–100 years

• 8-bytes of nonvolatile EEPROM memory

• 10K

Ω or 2.5KΩ resistor arrays

• Resolution: 64 taps each pot

• 14-lead TSSOP, 16-lead SOIC, and 16-pin plastic

DIP packages

DESCRIPTION

The X9420 integrates a single 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 SPI bus

interface. The 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

HOLD

CS

SI

A0

VH/RH

VL/RL

Data

8

VW/RW

SCK

S0

Low Noise/Low Power/SPI Bus

APPLICATION NOTES

AVAILABLE

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

类似零件编号 - X9420WS

制造商	部件名	数据表	功能描述
Intersil Corporation	X9420WS	366Kb / 20P	Single Digitally Controlled (XDCP) Potentiometer
	X9420WS-2.7	366Kb / 20P	Single Digitally Controlled (XDCP) Potentiometer
	X9420WS16	312Kb / 19P	Single Digitally Controlled Potentiometer April 26, 2006
Renesas Technology Corp	X9420WS16	766Kb / 19P	Low Noise/Low Power/SPI Bus Single Digitally Controlled (XDCP?? Potentiometer
Intersil Corporation	X9420WS16-2.7	312Kb / 19P	Single Digitally Controlled Potentiometer April 26, 2006

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类似说明 - X9420WS

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Xilinx, Inc	X9119	125Kb / 22P	Single Digitally-Controlled (XDCP ??) Potentiometer