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X9514WVM 반도체 회로 부품 판매점

PushPot Potentiometer (Push Button Controlled)



Xicor 로고
Xicor
X9514WVM 데이터시트, 핀배열, 회로
APPLICATION NOTES
AVA I L A B L E
AN42 • AN44–50 • AN52 • AN53 • AN73
XTe9r5m14inal Voltage ±5V, 32 Taps, Log Taper
X9514
PushPot™ Potentiometer (Push Button Controlled)
FEATURES
Push Button Controlled
Low Power CMOS
—Active Current, 3mA Max
—Standby Current, 200µA Max
31 Resistive Elements
—Temperature Compensated
±20% End to End Resistance Range
— –5V to +5V Range
32 Wiper Tap Points
—Logarithmic Taper
—Wiper Positioned via Two Push Button Inputs
—Slow & Fast Scan Modes
—AUTOSTORE® Option
—Manual Store Option
—Wiper Position Stored in Nonvolatile
Memory and Recalled on Power-Up
100 Year Wiper Position Data Retention
X9514W = 10K
Packages
—8-Lead PDIP
—8-Lead SOIC
—14-Lead TSSOP
DESCRIPTION
The Xicor X9514 is a push button controlled, logarithmic
taper potentiometer and is ideal for push button con-
trolled resistance trimming.
The X9514 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 PU and PD inputs.
The position of the wiper can be automatically stored in E2
memory and then be recalled upon a subsequent power-
on operation.
All Xicor nonvolatile products are designed and tested
for applications requiring extended endurance and data
retention.
FUNCTIONAL DIAGRAM
PU 5-BIT
UP/DOWN
PD COUNTER
31
30
VH
29
5-BIT
EEPROM
MEMORY
ONE 28
OF
THIRTY-
TWO
DECODER
TRANSFER
GATES
RESISTOR
ARRAY
ASE
STORE AND
RECALL
CONTROL
CIRCUITRY
2
1
0
VL
VW
AUTOSTORE is a registered trademark of Xicor, Inc.
E2POT™ and PushPot™ are trademarks of Xicor, Inc.
©Xicor, Inc. 1994, 1995, 1996 Patents Pending
6487-3.5 7/3/96 T5/C3/D2 NS
1
6487 ILL F01.1
Characteristics subject to change without notice


X9514WVM 데이터시트, 핀배열, 회로
X9514
PIN DESCRIPTIONS
VH and VL
The high (VH) and low (VL) terminals of the X9514 are
equivalent to the fixed terminals of a mechanical potenti-
ometer. 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 PU and PD
inputs and not the voltage potential on the terminal.
PU
The debounced PU input is for incrementing the wiper
position. An on-chip pull-up holds the PU input HIGH. A
switch closure to ground or a LOW logic level will, after
a debounce time, move the wiper to the next adjacent
higher tap position.
PD
The debounced PD input is for decrementing the wiper
position. An on-chip pull-up holds the PD input HIGH. A
switch closure to ground or a LOW logic level will, after
a debounce time, move the wiper to the next adjacent
lower tap position.
ASE
The debounced ASE (AUTOSTORE enable) pin can be
in one of two states:
VIL – AUTOSTORE is enabled. When VCC powers-
down an automatic store cycle takes place.
VIH – AUTOSTORE is disabled. A LOW to HIGH will
initiate a manual store operation. This is for a user who
wishes to connect a push button switch to this pin. For
every valid push, the X9514 will store the current wiper
position to the E2PROM.
Typical Attenuation Characteristics (dB)
0
PIN CONFIGURATION
DIP/SOIC
PU
PD
VH
VSS
18
27
X9514
36
45
VCC
ASE
VL
VW
PU
PD
NC
NC
NC
VH
VSS
TSSOP
1 14
2 13
3 12
4 X9514 11
5 10
69
78
VCC
ASE
NC
NC
NC
VL
VW
6487 ILL F02.2
PIN NAMES
Symbol
VH
VW
VL
VSS
VCC
PU
PD
ASE
NC
Description
High Terminal
Wiper Terminal
Low Terminal
Ground
Supply Voltage
Push Up Input
Push Down Input
AUTOSTORE Enable Input
No Connect
6487 PGM T01.2
-20
-40
-43.5
-60
31 28 24 20 16 12
TAP POSITION
2
8
40
6487 ILL F04




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