X9314 Xicor, X9314 Datasheet - Page 2

• Manufacturer Part Number: X9314
• Description: E2POT Nonvolatile Digital Potentiometer
• Manufacturer: Xicor

X9314
PIN DESCRIPTIONS
V
The high (V
are equivalent to the fixed terminals of a mechanical
potentiometer. The minimum voltage is –5V and the
maximum is +5V. It should be noted that the terminology
of V
terminal in relation to wiper movement direction
selected by the U/D input and not the voltage potential on
the terminal.
V
Vw is the wiper terminal, equivalent to the movable
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 40 .
Up/Down (U/D)
The U/D input controls the direction of the wiper move-
ment and whether the counter is incremented or
decremented.
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 X9314
will be placed in the low power standby mode until the
device is selected once again.
Typical Attenuation Characteristics (dB)
H
W
and V
L
-43.5
and V
-60
-20
-40
0
L
31
H
H
) and low (V
references the relative position of the
28
L
) terminals of the X9314
24
20
TAP POSITION
2
16
PIN CONFIGURATION
PIN NAMES
Symbol
V
V
V
V
V
U/D
INC
CS
H
W
L
SS
CC
12
V SS
V SS
INC
U/D
V W
V H
V H
V L
8-LEAD DIP/SOIC
1
2
3
4
1
2
3
4
8-LEAD MSOP
X9314
X9314
8
High Terminal
Wiper Terminal
Low Terminal
Ground
Supply Voltage
Up/Down Input
Increment Input
Chip Select Input
Description
8
7
6
5
8
7
6
5
6427 ILL F02.2
4
V CC
CS
V L
V W
U/D
INC
V CC
CS
6427 ILL F07
6427 PGM T01
0