A
PPLICATION
N
OTES
A V A I L A B L E
AN42 • AN44–48 • AN50 • AN52 • AN53 • AN73
Terminal Voltage
±
5V, 32 Taps
X9511
PushPot
™
Potentiometer (Push Button Controlled)
FEATURES
• 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
—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
• X9511Z = 1K
Ω
• X9511W = 10K
Ω
• Packages
—8-Lead PDIP
—8-Lead SOIC
FUNCTIONAL DIAGRAM
PU
PD
5-BIT
UP/DOWN
COUNTER
31
30
29
5-BIT
EEPROM
MEMORY
28
VH
DESCRIPTION
The Xicor X9511 is a push button controlled, potentiom-
eter and is ideal for push button controlled resistance
trimming.
The X9511 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 subse-
quent power-on operation.
The resolution of the X9511 is equal to the maximum
resistance value divided by 31. As an example, for the
X9511W (10K
Ω
) each tap point represents 323
Ω
.
All Xicor nonvolatile products are designed and tested for
applications requiring extended endurance and data
retention.
ONE
OF
THIRTY-
TWO
DECODER
TRANSFER
GATES
2
RESISTOR
ARRAY
ASE
STORE AND
RECALL
CONTROL
CIRCUITRY
1
0
VL
VW
3067 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
3067-3.5 8/9/97 T2/C0/D0 NS
1
Characteristics subject to change without notice
XICOR [ XICOR INC. ]
