X9315 Xicor, X9315 Datasheet - Page 2

• Manufacturer Part Number: X9315
• Description: E 2 POT TM Nonvolatile Digital Potentiometer
• Manufacturer: Xicor

X9315
PIN DESCRIPTIONS
V
The high (V
equivalent to the fixed terminals of a mechanical potenti-
ometer. The minimum voltage is V
V
references the relative position of the terminal in relation
to wiper movement direction selected by the U/D input
and not the voltage potential on the terminal.
V
V
terminal of a mechanical potentiometer. The position
of the wiper within the array is determined by the control
inputs. The wiper terminal series resistance is typically
400 .
Up/Down (U/D)
The U/D input controls the direction of the wiper move-
ment and whether the counter is incremented or decre-
mented.
Increment (INC)
The INC input is negative-edge triggered. Toggling INC
will move the wiper and either increment or decrement
the counter in the direction indicated by the logic level on
the U/D input.
Chip Select (CS)
The device is selected when the CS input is LOW. The
current counter value is stored in nonvolatile memory
when CS is returned HIGH while the INC input is also
HIGH. After the store operation is complete the X9315
will be placed in the low power standby mode until the
device is selected once again.
H
CC
W
w
is the wiper terminal, equivalent to the movable
and V
. It should be noted that the terminology of V
L
H
) and low (V
L
) terminals of the X9315 are
SS
and the maximum is
L
and V
H
2
PIN CONFIGURATION
PIN NAMES
Symbol
V
V
U/D
INC
V
CS
V
V
CC
SS
W
H
L
V
INC
U/D
V
SS
H
High Terminal
Wiper Terminal
Low Terminal
Ground
Supply Voltage
Up/Down Input
Increment Input
Chip Select Input
DIP/SOIC/MSOP
1
2
3
4
X9315
Description
8
7
6
5
V
CS
V
V
CC
L
W
6732 FM T01
6732 FM2