X9511 Datasheet, PDF (2/10 Pages) Xicor Inc. – PushPot O Potentiometer (Push Button Controlled)

X9511
PIN DESCRIPTIONS
V_H and V_L
The high (V_H) and low (V_L) terminals of the X9511 are
equivalent to the fixed terminals of a mechanical potenti-
ometer. The minimum voltage is –5V and the maximum
is +5V. It should be noted that the terminology of V_L and
V_H references the relative position of the terminal in rela-
tion to wiper movement direction selected by the PU and
PD inputs and not the voltage potential on the terminal.
PU
The debounced PU input is for incrementing the wiper
position. An on-chip pull-up holds the PU input HIGH. A
switch closure to ground or a LOW logic level will, after a
debounce time, move the wiper to the next adjacent
higher tap position.
PD
The debounced PD input is for decrementing the wiper
position. An on-chip pull-up holds the PD input HIGH. A
switch closure to ground or a LOW logic level will, after a
debounce time, move the wiper to the next adjacent
lower tap position.
ASE
The debounced ASE (AUTOSTORE enable) pin can be
in one of two states:
V_IL – Autostore is enabled. When V_CC powers-down an
automatic store cycle takes place.
V_IH – AUTOSTORE is disabled. A LOW to HIGH will ini-
tiate a manual store operation. This is for a user who
wishes to connect a push button switch to this pin. For
every valid push, the X9511 will store the current wiper
position to the E²PROM.
PIN CONFIGURATION
PU
PD
VH
VSS
DIP/SOIC
1
8
2
7
X9511
3
6
4
5
VCC
ASE
VL
VW
3067 ILL F02.1
PIN NAMES
Symbol
V_H
V_W
V_L
V_SS
V_CC
PU
PD
ASE
Description
High Terminal
Wiper Terminal
Low Terminal
Ground
Supply Voltage
Push Up Input
Push Down Input
AUTOSTORE Enable Input
3067 FRM T01.1
2