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X9314WP3

Description
E2POT⑩ Nonvolatile Digital Potentiometer
Categoryaccessories   
File Size49KB,10 Pages
ManufacturerXicon Passive Components
Websitehttp://www.xicor.com
Download Datasheet View All

X9314WP3 Overview

E2POT⑩ Nonvolatile Digital Potentiometer

A
PPLICATION
N
OTES
A V A I L A B L E
AN42 • AN44–50 • AN52 • AN53 • AN71 • AN73
Terminal Voltage
±
5V, 32 Taps, Log Taper
X9314
X9314
E
2
POT
Nonvolatile Digital Potentiometer
FEATURES
DESCRIPTION
The Xicor X9314 is a solid state nonvolatile potentiom-
eter and is ideal for digitally controlled resistance trim-
ming.
The X9314 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.
All Xicor nonvolatile Digitally Controlled Potentiometers
are designed and tested for applications requiring ex-
tended endurance and data retention.
Low Power CMOS
—V
CC
= 3V to 5.5V
—Active Current, 3mA Max
—Standby Current, 500
µ
A 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
X9314W = 10K
Packages
—8-Lead MSOP
—8-Lead PDIP
—8-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
6427 FHD F01
E
2
POT™ is a trademark of Xicor, Inc.
©Xicor, Inc. 1994, 1995, 1996 Patents Pending
6427-1.7 6/12/96 T3/C1/D8 NS
1
Characteristics subject to change without notice
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