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X9314 Datasheet(PDF) 2 Page - Xicor Inc.

Part No. X9314
Description  E2POT™ Nonvolatile Digital Potentiometer
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Maker  XICOR [Xicor Inc.]
Homepage  http://www.xicor.com
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X9314 Datasheet(HTML) 2 Page - Xicor Inc.

 
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X9314
2
PIN DESCRIPTIONS
VH and VL
The high (VH) and low (VL) terminals of the X9314
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 VL and VH 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.
VW
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
Ω.
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.
TAP POSITION
6427 ILL F07
0
4
8
12
16
20
24
28
31
-20
-40
-43.5
0
-60
PIN CONFIGURATION
PIN NAMES
Symbol
Description
VH
High Terminal
VW
Wiper Terminal
VL
Low Terminal
VSS
Ground
VCC
Supply Voltage
U/
D
Up/Down Input
INC
Increment Input
CS
Chip Select Input
6427 PGM T01
Typical Attenuation Characteristics (dB)
U/D
INC
VCC
CS
6427 ILL F02.2
VH
VSS
VW
VL
1
2
3
4
8
7
6
5
X9314
8-LEAD MSOP
VCC
CS
VL
VW
INC
U/D
VH
VSS
1
2
3
4
8
7
6
5
X9314
8-LEAD DIP/SOIC


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