X9418YS24I datasheet, PDF - EEWORLD Datasheet

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X9418YS24I: DescriptionDigital Potentiometer, 2 Func, 2500ohm, 2-wire Serial Control Interface, 64 Positions, CMOS, PDSO24, PLASTIC, SOIC-24; CategoryAnalog mixed-signal IC converter; File Size382KB，21 Pages; ManufacturerXicor Inc.

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X9418YS24I Overview

Digital Potentiometer, 2 Func, 2500ohm, 2-wire Serial Control Interface, 64 Positions, CMOS, PDSO24, PLASTIC, SOIC-24

X9418YS24I Parametric

Parameter Name	Attribute value
Is it Rohs certified?	incompatible
Maker	Xicor Inc.
package instruction	PLASTIC, SOIC-24
Reach Compliance Code	unknown
Is Samacsys	N
Other features	NONVOLATILE MEMORY
control interface	2-WIRE SERIAL
Converter type	DIGITAL POTENTIOMETER
JESD-30 code	R-PDSO-G24
JESD-609 code	e0
Number of functions	2
Number of positions	64
Number of terminals	24
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Package body material	PLASTIC/EPOXY
encapsulated code	SOP
Encapsulate equivalent code	SOP24,.4
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
power supply	5 V
Certification status	Not Qualified
resistance law	LINEAR
Maximum resistor tolerance	20%
Maximum resistor terminal voltage	5.5 V
Minimum resistor terminal voltage	-5.5 V
Nominal supply voltage	5 V
surface mount	YES
technology	CMOS
Nominal temperature coefficient	300 ppm/°C
Temperature level	INDUSTRIAL
Terminal surface	Tin/Lead (Sn/Pb)
Terminal form	GULL WING
Terminal pitch	1.27 mm
Terminal location	DUAL
Nominal total resistance	2500 Ω
Base Number Matches	1

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PPLICATION

OTES

A V A I L A B L E

AN99 • AN115 • AN120 • AN124 • AN133 • AN134 • AN135

Low Noise/Low Power/2-Wire Bus

X9418

Dual Digitally Controlled Potentiometers (XDCP

™

)

FEATURES

• Two potentiometers in one package

• 2-wire serial interface

• Register oriented format

—Direct Read/Write/Transfer Wiper Position

—Store as many as Four Positions per

Potentiometer

• Power supplies

—V

= 2.7V to 5.5V

—V+ = 2.7V to 5.5V

—V– = –2.7V to –5.5V

• Low power CMOS

—Standby current < 1µA

—Ideal for Battery Operated Applications

• High reliability

—Endurance–100,000 Data Changes per Bit per

—Register Data Retention–100 years

• 8-bytes of nonvolatile memory

• 2.5K

Ω

, 10K

Ω

resistor array

• Resolution: 64 taps each potentiometer

• 24-pin plastic DIP, 24-lead TSSOP and 24-lead

SOIC packages

DESCRIPTION

The X9418 integrates two digitally controlled

potentiometers (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

nonvolatile 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 contents of DR0 to the WCR.

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.

BLOCK DIAGRAM

V+

V-

R0 R1

Wiper

Counter

(WCR)

SCL

SDA

R2 R3

Interface

and

Control

Circuitry

Data

R0 R1

Wiper

Counter

(WCR)

R2 R3

Resistor

Array

XDCP1

REV 1.1.5 7/23/02

www.xicor.com

Characteristics subject to change without notice.

1 of 21

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