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Xicor - E2POT Nonvolatile Digital Potentiometer

Numéro de référence X9313
Description E2POT Nonvolatile Digital Potentiometer
Fabricant Xicor 
Logo Xicor 





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X9313 fiche technique
APPLICATION NOTES
AVA I L A B L E
AN42 • AN44–48 • AN50 • AN52 • AN53 • AN71 • AN73
TXe9r3m13inal Voltage ±5V, 32 Taps
X9313
E2POT™ Nonvolatile Digital Potentiometer
FEATURES
Low Power CMOS
—VCC = 3V to 5.5V
—Active Current, 3mA Max
—Standby Current, 500µA Max
31 Resistive Elements
—Temperature Compensated
±20% End to End Resistance Range
— –5V to +5V Range
32 Wiper Tap Points
—Wiper Positioned via Three-Wire Interface
—Similar to TTL Up/Down Counter
—Wiper Position Stored in Nonvolatile
Memory and Recalled on Power-Up
100 Year Wiper Position Data Retention
X9313Z = 1K
X9313W = 10K
Packages
—8-Lead MSOP
—8-Lead PDIP
—8-Lead SOIC
DESCRIPTION
The Xicor X9313 is a solid state nonvolatile potentiom-
eter and is ideal for digitally controlled resistance
trimming.
The X9313 is a resistor array composed of 31 resistive
elements. Between each element and at either end are
tap points accessible to the wiper element. The position of
the wiper element is controlled by the CS, U/D, and INC
inputs. The position of the wiper can be stored in nonvola-
tile memory and then be recalled upon a subsequent
power-up operation.
The resolution of the X9313 is equal to the maximum
resistance value divided by 31. As an example, for the
X9313W (10K) each tap point represents 323.
All Xicor nonvolatile memories are designed and tested
for applications requiring extended endurance and data
retention.
FUNCTIONAL DIAGRAM
U/D 5-BIT
INC UP/DOWN
CS COUNTER
5-BIT
NONVOLATILE
MEMORY
VCC
GND
STORE AND
RECALL
CONTROL
CIRCUITRY
E2POT™ is a trademark of Xicor, Inc.
©Xicor, Inc. 1994, 1995, 1996 Patents Pending
3866-1.5 6/12/96 T5/C1/D8 NS
31
30
29
ONE 28
OF
THIRTY-
TWO
DECODER
2
1
0
VH
TRANSFER
GATES
RESISTOR
ARRAY
VL
VW
3866 FHD F01
1 Characteristics subject to change without notice

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