Datasheet > X9221YST1

X9221YST1

更新时间： 2024-10-04 08:21:47

品牌	Logo	应用领域
XICOR		光电二极管
页数	文件大小	规格书
15页	345K
描述
Digital Potentiometer, 2 Func, 2000ohm, 2-wire Serial Control Interface, 64 Positions, CMOS, PDSO20, PLASTIC, SOIC-20

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X9221YST1 数据手册

APPLICATION NOTE

A V A I L A B L E

AN20 • AN42–53 • AN71 • AN73 • AN88 • AN91–92 • AN99 • AN115 • AN120 • AN124 • AN133 • AN134

Terminal Voltage 5V, 64 Taps, 2-ꢀire

X9221

Dual Digitally Controlled Potentiometer (XDCP^™)

FEATURES

DESCRIPTION

• Two XDCPs in one package

• 2-wire serial interface

• Register oriented format

The X9221 integrates two digitally controlled potenti-

ometers (XDCP) on a monolithic CMOS integrated

microcircuit.

—Directly write wiper position

—Read wiper position

—Store as many as four positions per pot

• Instruction format

—Quick transfer of register contents to resistor

array

• Low power CMOS

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 2-wire

bus interface. Each potentiometer has associated with

it a volatile Wiper Counter Register (WCR) and 4 non-

volatile 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 con-

tents of DR0 to the WCR.

• Direct write cell

—Endurance–100,000 writes per bit per register

—Register data retention–100 years

• Bytes of EEPROM memory

• Resistor array values

—2KΩ to 50KΩ mask programmable

• Resolution: 64 taps each pot

• 20-lead plastic DIP and 20-lead SOIC packages

The XDCP can be used as a three-terminal potentiom-

eter or as a two-terminal variable resistor in a wide

variety of applications including control, parameter

adjustments, and signal processing.

BLOCK DIAGRAM

Pot 0

H0 H0

Wiper

Counter

(WCR)

L0 L0

W0 W0

SCL

SDA

Interface

and

Control

Circuitry

Data

H1 H1

Wiper

Counter

(WCR)

Array

Pot 1

L1 L1

W1 W1

Characteristics subject to change without notice. 1 of 15

REV 1.1 8/8/02

www.xicor.com

12 3 4 5 6 7...15

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与X9221YST1相关器件

型号	品牌	获取价格	描述	数据表
X9221YST2	XICOR	获取价格	Digital Potentiometer, 2 Func, 2000ohm, 2-wire Serial Control Interface, 64 Positions, CMO
X9241	XICOR	获取价格	Quad E2POT⑩ Nonvolatile Digital Potentiometer
X9241A	XICOR	获取价格	Quad Digitally Controlled Potentiometer (XDCP)
X9241A	INTERSIL	获取价格	Low Powr/2-Wire Serial Bus
X9241A	RENESAS	获取价格	Quad Digital Controlled Potentiometers (XDCP?), Non-Volatile/Low Power/2-Wire/64 Taps
X9241A_06	INTERSIL	获取价格	Quad Digital Controlled Potentionmeters (XDCP
X9241A_07	INTERSIL	获取价格	Quad Digital Controlled Potentionmeters (XDCP?)
X9241AMP	XICOR	获取价格	Quad Digitally Controlled Potentiometer (XDCP)
X9241AMP	INTERSIL	获取价格	Low Powr/2-Wire Serial Bus
X9241AMPI	XICOR	获取价格	Quad Digitally Controlled Potentiometer (XDCP)

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