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X9241MPI

Description
Digital Potentiometer, 4 Func, 50000ohm, 2-wire Serial Control Interface, 64 Positions, CMOS, PDIP20, PLASTIC, DIP-20
CategoryAnalog mixed-signal IC    converter   
File Size75KB,16 Pages
ManufacturerXicor Inc.
Download Datasheet Parametric View All

X9241MPI Overview

Digital Potentiometer, 4 Func, 50000ohm, 2-wire Serial Control Interface, 64 Positions, CMOS, PDIP20, PLASTIC, DIP-20

X9241MPI Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
MakerXicor Inc.
package instructionPLASTIC, DIP-20
Reach Compliance Codeunknown
Other featuresREST 3 RESISTOR ARRAY VALUES ARE : 2000, 10000, 10000 OHMS; NONVOLATILE MEMORY
control interface2-WIRE SERIAL
Converter typeDIGITAL POTENTIOMETER
JESD-30 codeR-PDIP-T20
JESD-609 codee0
length25.905 mm
Number of functions4
Number of positions64
Number of terminals20
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeDIP
Encapsulate equivalent codeDIP20,.3
Package shapeRECTANGULAR
Package formIN-LINE
Peak Reflow Temperature (Celsius)NOT SPECIFIED
power supply5 V
Certification statusNot Qualified
resistance lawLINEAR
Maximum resistor tolerance20%
Maximum resistor terminal voltage5 V
Minimum resistor terminal voltage-5 V
Maximum seat height5.33 mm
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
Maximum time at peak reflow temperatureNOT SPECIFIED
Nominal total resistance50000 Ω
width7.62 mm
A
PPLICATION
N
OTES AND
D
EVELOPMENT
S
YSTEM
A V A I L A B L E
AN20 • AN42–48 • AN50–53 • AN73 • XK9241
Terminal Voltage
±
5V, 64 Taps
X9241
X9241
Quad E
2
POT
Nonvolatile Digital Potentiometer
FEATURES
DESCRIPTION
The X9241 integrates four nonvolatile E
2
POT digitally
controlled potentiometers on a monolithic CMOS micro-
circuit.
The X9241 contains four resistor arrays, each com-
posed of 63 resistive elements. Between each element
and at either end are tap points accessible to the wiper
elements. The position of the wiper element on the array
is controlled by the user through the two-wire serial bus
interface.
Each resistor array has associated with it a wiper counter
register and four 8-bit data registers that can be directly
written and read by the user. The contents of the wiper
counter register control the position of the wiper on the
resistor array.
The data register may be read or written by the user. The
contents of the data registers can be transferred to the
wiper counter register to position the wiper. The current
wiper position can be transferred to any one of its
associated data registers.
The arrays may be cascaded to form resistive elements
with 127, 190 or 253 taps.
Four E
2
POTs in One Package
Two-Wire Serial Interface
Register Oriented Format
—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
—Cascade Resistor Arrays
Low Power CMOS
Direct Write Cell
—Endurance - 100,000 Data Changes per Register
—Register Data Retention - 100 years
16 Bytes of E
2
PROM memory
3 Resistor Array Values
—2K
to 50K
Mask Programmable
—Cascadable For Values of 500
to 200K
Resolution: 64 Taps each Pot
20-Lead Plastic DIP, 20-Lead TSSOP and
20-Lead SOIC Packages
FUNCTIONAL DIAGRAM
VH2
WIPER RESISTOR
COUNTER ARRAY
REGISTER
POT 2
(WCR)
R0 R1
WIPER
COUNTER
REGISTER
(WCR)
R2 R3
SCL
SDA
A0
A1
A2
A3
VH0
R0 R1
VL0
VW0
R2 R3
VL2
VW2
INTERFACE
AND
CONTROL
CIRCUITRY
8
DATA
R0 R1
VH1
WIPER
COUNTER RESISTOR
ARRAY
REGISTER
POT 1
(WCR)
R0 R1
VH3
WIPER
RESISTOR
COUNTER
ARRAY
REGISTER
POT 3
(WCR)
R2 R3
VL1
VW1
R2 R3
VL3
VW3
3864 ILL F07.1
© Xicor, Inc. 1994, 1995, 1996 Patents Pending
3864-2.7 7/1/96 T0/C3/D3 NS
1
Characteristics subject to change without notice
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