Datasheet > X9271

X9271

更新时间： 2024-11-03 14:57:23

品牌	Logo	应用领域
瑞萨 - RENESAS		/
页数	文件大小	规格书
19页	790K
描述
Single Digitally-Controlled (XDCP?) Potentiometer

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X9271 数据手册

DATASHEET

X9271

FN8174

Rev 5.00

October 15, 2015

Single Supply/Low Power/256-Tap/SPI Bus Single, Digitally Controlled (XDCP™)

Potentiometer

The X9271 integrates a single, digitally controlled

potentiometer (XDCP™) on a monolithic CMOS integrated

circuit.

Features

• 256 Resistor Taps

• SPI Serial Interface for Write, Read, and Transfer

Operations of Potentiometer

The digitally controlled potentiometer is implemented by

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

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

the WCR control the position of the wiper on the resistor

array though the switches. Power-up recalls the contents of

the default data register (DR0) to the WCR.

• Wiper Resistance, 100Ω typical at V

• 16 Nonvolatile Data Registers

= 5V

• Nonvolatile Storage of Multiple Wiper Positions

• Power-on Recall; Loads Saved Wiper Position on

Power-up

• Standby Current <3µA Max

• V

= 2.7V to 5.5V Operation

• 50kΩ End-to-End Resistance

• 100-yr Data Retention

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.

• Endurance: 100,000 Data Changes per Bit per Register

• 14-Lead TSSOP

• Low-power CMOS

• Pb-Free Plus Anneal Available (RoHS Compliant)

Functional Diagram

WRITE

READ

50kΩ

256 TAPS

ADDRESS

DATA

STATUS

TRANSFER

INC/DEC

POWER-ON RECALL

WIPER COUNTER

BUS

INTERFACE

AND CONTROL

SPI

BUS

INTERFACE

POT

DATA REGISTERS

16 Bytes

CONTROL

FN8174 Rev 5.00

October 15, 2015

Page 1 of 19

12 3 4 5 6 7...19

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与X9271相关器件

型号	品牌	获取价格	描述	数据表
X9271_11	INTERSIL	获取价格	Single, Digitally Controlled (XDCPâ¢) Potent
X9271-2.7	INTERSIL	获取价格	Single Supply/Low Power/256-Tap/SPI Bus
X9271TB	XICOR	获取价格	Single Digitally-Controlled (XDCP) Potentiometer
X9271TB16	RENESAS	获取价格	100K DIGITAL POTENTIOMETER, 3-WIRE SERIAL CONTROL INTERFACE, 256 POSITIONS, BGA16, BUMP, C
X9271TB16-2.7	RENESAS	获取价格	100K DIGITAL POTENTIOMETER, 3-WIRE SERIAL CONTROL INTERFACE, 256 POSITIONS, BGA16, BUMP, C
X9271TB16I	RENESAS	获取价格	100K DIGITAL POTENTIOMETER, 3-WIRE SERIAL CONTROL INTERFACE, 256 POSITIONS, BGA16, BUMP, C
X9271TB16I-2.7	RENESAS	获取价格	100K DIGITAL POTENTIOMETER, 3-WIRE SERIAL CONTROL INTERFACE, 256 POSITIONS, BGA16, BUMP, C
X9271TB-2.7	XICOR	获取价格	Single Digitally-Controlled (XDCP) Potentiometer
X9271TBI	XICOR	获取价格	Single Digitally-Controlled (XDCP) Potentiometer
X9271TBI-2.7	XICOR	获取价格	Single Digitally-Controlled (XDCP) Potentiometer