Datasheet > X9271UVI

X9271UVI

更新时间： 2024-11-20 22:21:55

品牌	Logo	应用领域
英特矽尔 - INTERSIL		转换器电阻器光电二极管
页数	文件大小	规格书
22页	373K
描述
Single Supply/Low Power/256-Tap/SPI Bus

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X9271UVI 数据手册

X9271

Single Supply/Low Power/256-Tap/SPI Bus

Data Sheet

March 31, 2005

FN8174.1

DESCRIPTION

The X9271 integrates a single digitally controlled

Single Digitally-Controlled (XDCP™)

Potentiometer

potentiometer (XDCP) on

integrated circuit.

monolithic CMOS

FEATURES

• 256 Resistor Taps

• SPI Serial Interface for write, read, and transfer

operations of the potentiometer

• Wiper Resistance, 100Ω typical @ V

• 16 Nonvolatile Data Registers

• Nonvolatile Storage of Multiple Wiper Positions

• Power-on Recall. Loads Saved Wiper Position on

Power-up.

The digital controlled potentiometer is implemented

using 255 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

nonvolatile 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.

= 5V

• Standby Current < 3µA Max

• V : 2.7V to 5.5V Operation

• 50kΩ, 100kΩ versions of End to End Resistance

• 100 yr. Data Retention

• Endurance: 100,000 Data Changes per Bit per

The XDCP can be used as

a three-terminal

• 14-Lead TSSOP

• Low Power CMOS

potentiometer or as a two terminal variable resistor in

a wide variety of applications including control,

parameter adjustments, and signal processing.

FUNCTIONAL DIAGRAM

Write

Read

Address

Transfer

50kΩ and 100kΩ

Power-on Recall

Data

256-taps

Inc/Dec

Status

Wiper Counter

Bus

SPI

Bus

Interface

POT

Interface

and Control

Data Registers

16 Bytes

Control

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.

12 3 4 5 6 7...22

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与X9271UVI相关器件

型号	品牌	获取价格	描述	数据表
X9271UVI-2.7	INTERSIL	获取价格	Single Supply/Low Power/256-Tap/SPI Bus
X9271UVI-2.7	XICOR	获取价格	Single Digitally-Controlled (XDCP) Potentiometer
X9271UXXX	XICOR	获取价格	Digital Potentiometer, CMOS,
X9271UXXX-2.7	XICOR	获取价格	Digital Potentiometer, CMOS,
X9271UXXXI	XICOR	获取价格	Digital Potentiometer, CMOS,
X9271UXXXI-2.7	XICOR	获取价格	Digital Potentiometer, CMOS,
X9271UZ14	XICOR	获取价格	Digital Potentiometer, 1 Func, 50000ohm, 3-wire Serial Control Interface, 256 Positions, C
X9271UZ14-2.7	XICOR	获取价格	Digital Potentiometer, 1 Func, 50000ohm, 3-wire Serial Control Interface, 256 Positions, C
X9271UZ14I-2.7	XICOR	获取价格	Digital Potentiometer, 1 Func, 50000ohm, 3-wire Serial Control Interface, 256 Positions, C
X9279	XICOR	获取价格	Single Digitally-Controlled (XDCP) Potentiometer

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