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X9428WPI

Description
Digital Potentiometer, 1 Func, 10000ohm, 2-wire Serial Control Interface, 64 Positions, CMOS, PDIP16, PLASTIC, DIP-16
CategoryAnalog mixed-signal IC    converter   
File Size576KB,20 Pages
ManufacturerXicor Inc.
Download Datasheet Parametric View All

X9428WPI Overview

Digital Potentiometer, 1 Func, 10000ohm, 2-wire Serial Control Interface, 64 Positions, CMOS, PDIP16, PLASTIC, DIP-16

X9428WPI Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
MakerXicor Inc.
package instructionPLASTIC, DIP-16
Reach Compliance Codeunknown
Is SamacsysN
Other featuresNONVOLATILE MEMORY
control interface2-WIRE SERIAL
Converter typeDIGITAL POTENTIOMETER
JESD-30 codeR-PDIP-T16
JESD-609 codee0
Number of functions1
Number of positions64
Number of terminals16
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeDIP
Encapsulate equivalent codeDIP16,.3
Package shapeRECTANGULAR
Package formIN-LINE
power supply5 V
Certification statusNot Qualified
resistance lawLINEAR
Maximum resistor tolerance20%
Maximum resistor terminal voltage5.5 V
Minimum resistor terminal voltage-5.5 V
Nominal supply voltage5 V
surface mountNO
technologyCMOS
Nominal temperature coefficient300 ppm/°C
Temperature levelINDUSTRIAL
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formTHROUGH-HOLE
Terminal pitch2.54 mm
Terminal locationDUAL
Nominal total resistance10000 Ω
Base Number Matches1
A
PPLICATION
N
OTES
A V A I L A B L E
AN99 • AN115 • AN120 • AN124 • AN133 • AN134 • AN135
Low Noise/Low Power/2-Wire Bus
X9428
Single Digitally Controlled Potentiometer (XDCP
)
FEATURES
• Solid state potentiometer
• 2-wire serial interface
• Register oriented format
—Direct Read/Write/Transfer Wiper Position
—Store as many as Four Positions per
Potentiometer
• Power supplies
—V
CC
= 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
—Register Data Retention–100 years
• 4-bytes of nonvolatile memory
• 10K Ohm resistor array
• Resolution: 64 taps each potentiometer
• SOIC and TSSOP packages
DESCRIPTION
The X9428 integrates a 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
CC
V
SS
V+
V–
R0 R1
Interface
and
Control
Circuitry
Data
WP
V
H
/R
H
SCL
SDA
A0
A2
A3
8
R2 R3
Wiper
Counter
Register
(WCR)
V
L
/R
L
V
W
/R
W
REV 1.1.5 7/8/03
www.xicor.com
Characteristics subject to change without notice.
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