Datasheet > X9421

X9421

更新时间： 2024-11-06 22:41:23

品牌	Logo	应用领域
英特矽尔 - INTERSIL		/
页数	文件大小	规格书
21页	365K
描述
Single Digitally Controlled (XDCP) Potentiometer

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X9421 数据手册

X9421

Low Noise/Low Power/SPI Bus

Data Sheet

September 23, 2005

FN8196.1

DESCRIPTION

The X9421 integrates a single digitally controlled

Single Digitally Controlled (XDCP™)

Potentiometer

potentiometer (XDCP) on

integrated circuit.

monolithic CMOS

FEATURES

• Single Voltage Potentiometer

• 64 Resistor Taps

The digital 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 a four non-

volatile Data Registers 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

though the switches. Powerup recalls the contents of

the default data register (DR0) to the WCR.

• SPI Serial Interface for Write, Read, and Transfer

Operations of the Potentiometer

• Wiper Resistance, 150Ω Typical at 5V

• 4 Non-Volatile Data Registers

• Non-Volatile Storage of Multiple Wiper Positions

• Power-on Recall. Loads Saved Wiper Position

on Power-up.

• Standby Current < 5µA Max

• V

: 2.7V to 5.5V Operation

• 2.5kΩ, 10kΩ End to End Resistance

• 100 yr. Data Retention

• Endurance: 100, 000 Data Changes per Bit per

• 14 Ld TSSOP, 16 Ld SOIC

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.

• Low Power CMOS

• Pb-Free Plus Anneal Available (RoHS Compliant)

BLOCK DIAGRAM

R /V

write

read

10kΩ

transfer

inc / dec

address

data

status

Power-on Recall

64-taps

wiper

Wiper Counter

Bus

Interface &

Control

POT

SPI

bus

interface

Data Registers

4 Bytes

control

R /V

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.

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

12 3 4 5 6 7...21

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与X9421相关器件

型号	品牌	获取价格	描述	数据表
X9421_09	INTERSIL	获取价格	Single Digitally Controlled (XDCP?) Potentiometer
X9421WS	XICOR	获取价格	Single Digitally Controlled (XDCP) Potentiometer
X9421WS16	INTERSIL	获取价格	Single Digitally Controlled (XDCP) Potentiometer
X9421WS16-2.7	INTERSIL	获取价格	Single Digitally Controlled (XDCP) Potentiometer
X9421WS16-2.7T1	RENESAS	获取价格	10K DIGITAL POTENTIOMETER, 3-WIRE SERIAL CONTROL INTERFACE, 64 POSITIONS, PDSO16, 0.300 IN
X9421WS16I	INTERSIL	获取价格	Single Digitally Controlled (XDCP) Potentiometer
X9421WS16I-2.7	INTERSIL	获取价格	Single Digitally Controlled (XDCP) Potentiometer
X9421WS16I-2.7-T1	RENESAS	获取价格	Digital Potentiometer, 1 Func, 10000ohm, 3-wire Serial Control Interface, 64 Positions, CM
X9421WS16IT1	RENESAS	获取价格	10K DIGITAL POTENTIOMETER, 3-WIRE SERIAL CONTROL INTERFACE, 64 POSITIONS, PDSO16, 0.300 IN
X9421WS16I-T1	RENESAS	获取价格	Digital Potentiometer, 1 Func, 10000ohm, 3-wire Serial Control Interface, 64 Positions, CM

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