X9317 Datasheet, PDF (5/15 Pages) Intersil Corporation – Low Noise, Low Power, 100 Taps

X9317
Block Diagram
V_CC (Supply Voltage)
Up/Down
(U/D)
Increment
(INC)
Device Select
(CS)
Control
and
Memory
V_SS (Ground)
General
U/D
INC
CS
R_H
R_W
R_L
V_CC
V_SS
Up/Down
Counter
7-Bit
Nonvolatile
Memory
Store and
Recall
Control
Circuitry
99
R_H
98
97
One ⁹⁶
of
One
Hundred
Decoder
2
Wiper
Switches
Resistor
Array
1
0
R_L
R_W
Detailed
Pin Descriptions
DIP/SOIC
1
2
3
4
5
6
7
8
SYMBOL
BRIEF DESCRIPTION
INC Increment. Toggling INC while CS is low moves the wiper either up or down.
U/D Up/Down. The U/D input controls the direction of the wiper movement.
R_H
The high terminal is equivalent to one of the fixed terminals of a mechanical potentiometer.
V_SS Ground.
R_W
The wiper terminal is equivalent to the movable terminal of a mechanical potentiometer.
R_L
The low terminal is equivalent to one of the fixed terminals of a mechanical potentiometer.
CS
Chip Select. The device is selected when the CS input is LOW, and de-selected when CS is high.
V_CC Supply Voltage.
5
FN8183.1
September 9, 2005