A
PPLICATION
N
OTES
A V A I L A B L E
AN42 • AN44–50 • AN52 • AN53 • AN73
Terminal Voltage
±
5V, 32 Taps, Log Taper
X9514
X9514
PushPot™ Potentiometer (Push Button Controlled)
FEATURES
DESCRIPTION
The Xicor X9514 is a push button controlled, logarithmic
taper potentiometer and is ideal for push button con-
trolled resistance trimming.
The X9514 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
PU
and
PD
inputs.
The position of the wiper can be automatically stored in E
2
memory and then be recalled upon a subsequent power-
on operation.
All Xicor nonvolatile products are designed and tested
for applications requiring extended endurance and data
retention.
•
•
•
•
•
•
•
Push Button Controlled
Low Power CMOS
—Active Current, 3mA Max
—Standby Current, 200
µ
A Max
31 Resistive Elements
—Temperature Compensated
—
±
20% End to End Resistance Range
— –5V to +5V Range
32 Wiper Tap Points
—Logarithmic Taper
—Wiper Positioned via Two Push Button Inputs
—Slow & Fast Scan Modes
—AUTOSTORE
®
Option
—Manual Store Option
—Wiper Position Stored in Nonvolatile
Memory and Recalled on Power-Up
100 Year Wiper Position Data Retention
X9514W = 10K
Ω
Packages
—8-Lead PDIP
—8-Lead SOIC
—14-Lead TSSOP
FUNCTIONAL DIAGRAM
PU
PD
5-BIT
UP/DOWN
COUNTER
31
30
29
5-BIT
EEPROM
MEMORY
28
VH
ONE
OF
THIRTY-
TWO
DECODER
TRANSFER
GATES
2
RESISTOR
ARRAY
ASE
STORE AND
RECALL
CONTROL
CIRCUITRY
1
0
VL
VW
6487 ILL F01.1
AUTOSTORE is a registered trademark of Xicor, Inc.
E
2
POT™ and PushPot™ are trademarks of Xicor, Inc.
©Xicor, Inc. 1994, 1995, 1996 Patents Pending
6487-3.5 7/3/96 T5/C3/D2 NS
1
Characteristics subject to change without notice
XICOR [ XICOR INC. ]
