X9221WS Intersil, X9221WS Datasheet

X9221WS

Manufacturer Part Number

X9221WS

Description

IC DCP DUAL 10K 64TP 20SOIC

Manufacturer

Intersil

Series

XDCP™r

Datasheet

1.X9221UP.pdf (15 pages)

Specifications of X9221WS

Taps

Resistance (ohms)

10K

Number Of Circuits

Temperature Coefficient

30 ppm/°C Typical

Memory Type

Non-Volatile

Interface

I²C, 2-Wire Serial

Voltage - Supply

4.5 V ~ 5.5 V

Operating Temperature

0°C ~ 70°C

Mounting Type

Surface Mount

Package / Case

20-SOIC (7.5mm Width)

Resistance In Ohms

10K

Lead Free Status / RoHS Status

Contains lead / RoHS non-compliant

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Meier Automation Equipment Co., Limited

Part Number:

X9221WS

Manufacturer:

XICOR

Quantity:

20 000

Current page: 1 of 15
Download datasheet (346Kb)

BLOCK DIAGRAM

Terminal Voltage ±5V, 64 Taps, 2-Wire

FEATURES

• Two XDCPs in one package

• 2-wire serial interface

• Register oriented format

• Instruction format

• Low power CMOS

• Direct write cell

• Bytes of EEPROM memory

• Resistor array values

• Resolution: 64 taps each pot

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

REV 1.1 8/8/02

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

—Directly write wiper position

—Read wiper position

—Store as many as four positions per pot

—Quick transfer of register contents to resistor

—Endurance–100,000 writes per bit per register

—Register data retention–100 years

—2K Ω to 50K Ω mask programmable

array

SCL

SDA

Dual Digitally Controlled Potentiometer (XDCP

A V A I L A B L E

Interface

Circuitry

Control

PPLICATION

and

OTE

Data

www.xicor.com

X9221

DESCRIPTION

The X9221 integrates two digitally controlled potenti-

ometers (XDCP) on a monolithic CMOS integrated

microcircuit.

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.

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.

Counter

(WCR)

Wiper

Pot 0

Array

Pot 1

Characteristics subject to change without notice.

™

)

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