X9317_09 Datasheet, PDF (5/15 Pages) Intersil Corporation – Digitally Controlled Potentiometer (XDCP™)

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
RESISTOR
SWITCHES _ARRAY
1
0
R_L
R_W
DETAILED
Pin Descriptions
PDIP/SOIC/MSOP
1
2
3
4
5
TSSOP
3
4
5
6
7
6
8
7
1
8
2
SYMBOL
INC
U/D
R_H
V_SS
R_W
R_L
CS
V_CC
BRIEF DESCRIPTION
Increment Toggling INC while CS is low moves the wiper either up or down.
Up/Down The U/D input controls the direction of the wiper movement.
The high terminal is equivalent to one of the fixed terminals of a mechanical potentiometer.
Ground
The wiper terminal is equivalent to the movable terminal of a mechanical potentiometer.
The low terminal is equivalent to one of the fixed terminals of a mechanical potentiometer.
Chip Select The device is selected when the CS input is LOW, and de-selected when CS is
high.
Supply Voltage
5
FN8183.6
December 16, 2009