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X9313 Datasheet(PDF) 1 Page - Xicor Inc.

Part No. X9313
Description  E2POT™ Nonvolatile Digital Potentiometer
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Maker  XICOR [Xicor Inc.]
Homepage  http://www.xicor.com
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X9313 Datasheet(HTML) 1 Page - Xicor Inc.

 
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X9313
1
©Xicor, Inc. 1994, 1995, 1996 Patents Pending
Characteristics subject to change without notice
3866-1.5 6/12/96 T5/C1/D8 NS
E2POT™ is a trademark of Xicor, Inc.
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
Ω) each tap point represents 323Ω.
All Xicor nonvolatile memories are designed and tested
for applications requiring extended endurance and data
retention.
FEATURES
Low Power CMOS
—VCC = 3V to 5.5V
—Active Current, 3mA Max
—Standby Current, 500
µA 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
FUNCTIONAL DIAGRAM
3866 FHD F01
E2POT™ Nonvolatile Digital Potentiometer
X9313
5-BIT
UP/DOWN
COUNTER
5-BIT
NONVOLATILE
MEMORY
STORE AND
RECALL
CONTROL
CIRCUITRY
ONE
OF
THIRTY-
TWO
DECODER
RESISTOR
ARRAY
31
30
29
28
2
1
0
VL
VW
VH
U/D
INC
CS
VCC
GND
TRANSFER
GATES
Terminal Voltage
±5V, 32 Taps
APPLICATION NOTES
A V AILABLE
AN42 • AN44–48 • AN50 • AN52 • AN53 • AN71 • AN73


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