A
PPLICATION
N
OTES
A V A I L A B L E
AN42 鈥?AN44鈥?8 鈥?AN50 鈥?AN52 鈥?AN53 鈥?AN71 鈥?AN73
Terminal Voltage
鹵
5V, 32 Taps
X9313
X9313
E
2
POT鈩?Nonvolatile Digital Potentiometer
FEATURES
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鈩? each tap point represents 323鈩?
All Xicor nonvolatile memories are designed and tested
for applications requiring extended endurance and data
retention.
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Low Power CMOS
鈥擵
CC
= 3V to 5.5V
鈥擜ctive Current, 3mA Max
鈥擲tandby Current, 500
碌
A Max
31 Resistive Elements
鈥擳emperature Compensated
鈥?/div>
鹵
20% End to End Resistance Range
鈥?鈥?V to +5V Range
32 Wiper Tap Points
鈥擶iper Positioned via Three-Wire Interface
鈥擲imilar to TTL Up/Down Counter
鈥擶iper Position Stored in Nonvolatile
Memory and Recalled on Power-Up
100 Year Wiper Position Data Retention
X9313Z = 1K
鈩?/div>
X9313W = 10K
鈩?/div>
Packages
鈥?-Lead MSOP
鈥?-Lead PDIP
鈥?-Lead SOIC
FUNCTIONAL DIAGRAM
U/D
INC
CS
5-BIT
UP/DOWN
COUNTER
31
30
29
VH
5-BIT
NONVOLATILE
MEMORY
ONE
OF
THIRTY-
TWO
DECODER
28
TRANSFER
GATES
2
RESISTOR
ARRAY
VCC
GND
STORE AND
RECALL
CONTROL
CIRCUITRY
1
0
VL
VW
3866 FHD F01
E
2
POT鈩?is a trademark of Xicor, Inc.
漏Xicor, Inc. 1994, 1995, 1996 Patents Pending
3866-1.5 6/12/96 T5/C1/D8 NS
1
Characteristics subject to change without notice
X9313ZMI3相關型號PDF文件下載
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英文版
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英文版
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