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X9316 Datasheet(PDF) 2 Page - Xicor Inc.

Part No. X9316
Description  E 2 POT™ Nonvolatile Digital Potentiometer
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Maker  XICOR [Xicor Inc.]
Homepage  http://www.xicor.com
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X9316 Datasheet(HTML) 2 Page - Xicor Inc.

 
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X9316
2
PIN DESCRIPTIONS
VH and VL
The high (VH) and low (VL) terminals of the X9316 are
equivalent to the fixed terminals of a mechanical potenti-
ometer. The minimum voltage is Vand the maximum is
V+. 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 termi-
nal 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 100
Ω.
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 X9316
will be placed in the low power standby mode until the
device is selected once again.
V+, V(Analog positive/negative power supply)
The V+ and Vpins supply an external voltage to the
wiper position decoder.
PIN CONFIGURATION
PIN NAMES
7000 FRM T01.1
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
V+
Positive Analog Voltage
V
Negative Analog Voltage
14-LEAD DIP/SOIC
NC
VCC
CS
VL
VW
V+
NC
7000 FRM 02
NC
INC
U/D
VH
VSS
V
NC
1
2
3
4
5
6
7
14
13
12
11
10
9
8
X9316


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