Digital Potentiometer. X9314 Datasheet

X9314 Datasheet PDF, Equivalent


Part Number

X9314

Description

E2POT Nonvolatile Digital Potentiometer

Manufacture

Xicor

Total Page 10 Pages
PDF Download
Download X9314 Datasheet


X9314 Datasheet
APPLICATION NOTES
AVA I L A B L E
AN42 • AN44–50 • AN52 • AN53 • AN71 • AN73
TXe9r3m14inal Voltage ±5V, 32 Taps, Log Taper
X9314
E2POTNonvolatile Digital Potentiometer
FEATURES
Low Power CMOS
—VCC = 3V to 5.5V
—Active Current, 3mA Max
—Standby Current, 500µA Max
31 Resistive Elements
—Temperature Compensated
±20% End to End Resistance Range
— –5V to +5V Range
32 Wiper Tap Points
—Wiper Positioned via Three-Wire Interface
—Similar to TTL Up/Down Counter
—Wiper Position Stored in Nonvolatile
Memory and Recalled on Power-Up
100 Year Wiper Position Data Retention
X9314W = 10K
Packages
—8-Lead MSOP
—8-Lead PDIP
—8-Lead SOIC
DESCRIPTION
The Xicor X9314 is a solid state nonvolatile potentiom-
eter and is ideal for digitally controlled resistance trim-
ming.
The X9314 is a resistor array composed of 31 resistive
elements. Between each element and at either end are
tap points accessible to the wiper element. The position of
the wiper element is controlled by the CS, U/D, and INC
inputs. The position of the wiper can be stored in nonvola-
tile memory and then be recalled upon a subsequent
power-up operation.
All Xicor nonvolatile Digitally Controlled Potentiometers
are designed and tested for applications requiring ex-
tended endurance and data retention.
FUNCTIONAL DIAGRAM
U/D 5-BIT
INC UP/DOWN
CS COUNTER
5-BIT
NONVOLATILE
MEMORY
VCC
GND
STORE AND
RECALL
CONTROL
CIRCUITRY
E2POT™ is a trademark of Xicor, Inc.
©Xicor, Inc. 1994, 1995, 1996 Patents Pending
6427-1.7 6/12/96 T3/C1/D8 NS
31
30
29
ONE 28
OF
THIRTY-
TWO
DECODER
2
1
0
VH
TRANSFER
GATES
RESISTOR
ARRAY
VL
VW
6427 FHD F01
1 Characteristics subject to change without notice

X9314 Datasheet
X9314
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.
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.
PIN CONFIGURATION
8-LEAD DIP/SOIC
INC
U/D
VH
VSS
18
27
X9314
36
45
VCC
CS
VL
VW
VH
VSS
VW
VL
8-LEAD MSOP
18
27
X9314
36
45
U/D
INC
VCC
CS
6427 ILL F02.2
PIN NAMES
Symbol
VH
VW
VL
VSS
VCC
U/D
INC
CS
Description
High Terminal
Wiper Terminal
Low Terminal
Ground
Supply Voltage
Up/Down Input
Increment Input
Chip Select Input
6427 PGM T01
Typical Attenuation Characteristics (dB)
0
-20
-40
-43.5
-60
31 28 24 20 16 12
TAP POSITION
2
8
40
6427 ILL F07


Features Datasheet pdf APPLICATION NOTES A V A I L A B L E AN42 • AN44–50 • AN52 • AN53 • AN 71 • AN73 Terminal X9314 Voltage ±5 V, 32 Taps, Log Taper X9314 E2POT™ N onvolatile Digital Potentiometer FEATUR ES DESCRIPTION The Xicor X9314 is a sol id state nonvolatile potentiometer and is ideal for digitally controlled resis tance trimming. The X9314 is a resistor array composed of 31 resistive element s. Between each element and at either e nd are tap points accessible to the wip er element. The position of the wiper e lement is controlled by the CS, U/D, an d INC inputs. The position of the wiper can be stored in nonvolatile memory an d then be recalled upon a subsequent po wer-up operation. All Xicor nonvolatile Digitally Controlled Potentiometers ar e designed and tested for applications requiring extended endurance and data r etention. • • • • • • Low Power CMOS —VCC = 3V to 5.5V —A ctive Current, 3mA Max —Standby Curre nt, 500µA Max 31 Resistive Elements —Temperature Compensated —±20% End to End Resistance Range —.
Keywords X9314, datasheet, pdf, Xicor, E2POT, Nonvolatile, Digital, Potentiometer, 9314, 314, 14, X931, X93, X9, Equivalent, stock, pinout, distributor, price, schematic, inventory, databook, Electronic, Components, Parameters, parts, cross reference, chip, Semiconductor, circuit, Electric, manual, substitute




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