Datasheet > X9251

X9251

更新时间： 2024-11-20 14:58:11

品牌	Logo	应用领域
瑞萨 - RENESAS		/
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21页	988K
描述
Quad Digitally-Controlled (XDCP?) Potentiometer

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X9251 数据手册

DATASHEET

X9251

FN8166

Rev 7.00

January 14, 2021

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

Potentiometer

The X9251 integrates four digitally controlled potentiometers

Features

(XDCP) on a monolithic CMOS integrated circuit.

• Four potentiometers in one package

The digitally controlled potentiometers are implemented with

a combination of resistor elements and CMOS switches. The

position of the wipers are controlled by the user through the

SPI bus interface. Each potentiometer has associated with it a

volatile Wiper Counter Register (WCR) and four nonvolatile

Data Registers that can be directly written to and read by the

user. The content of the WCR controls the position of the wiper.

At power-up, the device recalls the content of the default Data

Registers of each DCP (DR00, DR10, DR20, and DR30) to the

corresponding WCR.

• 256 resistor taps–0.4% resolution

• SPI serial interface for write, read, and transfer operations of

the potentiometer

• Wiper resistance: 100Ω typical at V = 5V

• 4 Nonvolatile data registers for each potentiometer

• Nonvolatile storage of multiple wiper positions

• Standby current <5µA max

• V : 2.7V to 5.5V operation

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.

• 50kΩ version of total resistance

• 100 year data retention

• Single supply version of X9250

• Endurance: 100,000 data changes per bit per register

• 24 Ld TSSOP

• Low power CMOS

• Pb-free (RoHS compliant)

HOLD

DCP1

DCP3

DCP2

DCP0

WCR1

DR10

DR11

DR12

DR13

WCR3

DR30

DR31

DR32

DR33

WCR2

DR20

DR21

DR22

DR23

WCR0

DR00

DR01

DR02

DR03

SPI

Interface

POWER UP,

INTERFACE

CONTROL

AND

STATUS

SCK

FIGURE 1. FUNCTIONAL DIAGRAM

FN8166 Rev 7.00

January 14, 2021

Page 1 of 20

12 3 4 5 6 7...21

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与X9251相关器件

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X9251_07	INTERSIL	获取价格	Quad Digitally-Controlled (XDCP⑩) Potentiomet
X9251-2.7	INTERSIL	获取价格	Single Supply/Low Power/256-Tap/SPI Bus
X9251TB24	XICOR	获取价格	Quad Digitally-Controlled (XDCP) Potentiometer
X9251TB24-2.7	XICOR	获取价格	Quad Digitally-Controlled (XDCP) Potentiometer
X9251TB24I	XICOR	获取价格	Quad Digitally-Controlled (XDCP) Potentiometer
X9251TB24I-2.7	XICOR	获取价格	Quad Digitally-Controlled (XDCP) Potentiometer
X9251TB24I-2.7T1	XICOR	获取价格	Digital Potentiometer, 4 Func, 100000ohm, 3-wire Serial Control Interface, 256 Positions,
X9251TP24I	INTERSIL	获取价格	Single Supply/Low Power/256-Tap/SPI Bus
X9251TS24	XICOR	获取价格	Quad Digitally-Controlled (XDCP) Potentiometer
X9251TS24	INTERSIL	获取价格	Single Supply/Low Power/256-Tap/SPI Bus