X9514 Datasheet, PDF (2/11 Pages) Xicor Inc. – PushPot™ Potentiometer (Push Button Controlled)

X9514
PIN DESCRIPTIONS
V_H and V_L
The high (V_H) and low (V_L) terminals of the X9514 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 relation
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
initiate 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 X9514 will store the current wiper
position to the E²PROM.
Typical Attenuation Characteristics (dB)
0
PIN CONFIGURATION
DIP/SOIC
PU
PD
VH
VSS
1
8
2
7
X9514
3
6
4
5
VCC
ASE
VL
VW
PU
PD
NC
NC
NC
VH
VSS
TSSOP
1
14
2
13
3
12
4 X9514 11
5
10
6
9
7
8
VCC
ASE
NC
NC
NC
VL
VW
6487 ILL F02.2
PIN NAMES
Symbol
V_H
V_W
V_L
V_SS
V_CC
PU
PD
ASE
NC
Description
High Terminal
Wiper Terminal
Low Terminal
Ground
Supply Voltage
Push Up Input
Push Down Input
AUTOSTORE Enable Input
No Connect
6487 PGM T01.2
-20
-40
-43.5
-60
31
28
24
20
16
12
8
TAP POSITION
2
4
0
6487 ILL F04