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參數資料
| 型號： | X9315WMI-2.7T4 |
| 元件分類： | 數字電位計 |
| 英文描述： | 10K DIGITAL POTENTIOMETER, INCREMENT/DECREMENT CONTROL INTERFACE, 32 POSITIONS, PDSO8 |
| 封裝： | MSOP-8 |
| 文件頁數： | 1/13頁 |
| 文件大小： | 368K |
| 代理商： | X9315WMI-2.7T4 |
REV 1.3.2 1/14/03
Characteristics subject to change without notice.
1 of 13
www.xicor.com
Low Noise, Low Power, 32 Taps
X9315
Digitally Controlled Potentiometer (XDCP)
FEATURES
Solid-state potentiometer
3-wire serial interface
32 wiper tap points
—Wiper position stored in nonvolatile memory
and recalled on power-up
31 resistive elements
—Temperature compensated
—End to end resistance range ± 20%
—Terminal voltage, 0 to VCC
Low power CMOS
—VCC = 2.7V or 5V
—Active current, 50/400A max.
—Standby current, 1A max.
High reliability
—Endurance, 100,000 data changes per bit
—Register data retention, 100 years
RTOTAL values = 10K, 50K, 100K
Packages
—8-lead SOIC, MSOP and DIP
DESCRIPTION
The Xicor X9315 is a digitally controlled potentiometer
(XDCP). The device consists of a resistor array, wiper
switches, a control section, and nonvolatile memory.
The wiper position is controlled by a 3-wire interface.
The potentiometer is implemented by a resistor array
composed of 31 resistive elements and a wiper
switching network. Between each element and at
either end are tap points accessible to the wiper
terminal. 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 nonvolatile
memory and then be recalled upon a subsequent
power-up operation.
The
device
can
be
used
as
a
three-terminal
potentiometer or as a two-terminal variable resistor in
a wide variety of applications including:
– control
– parameter adjustments
– signal processing
BLOCK DIAGRAM
5-Bit
Up/Down
Counter
5-Bit
Nonvolatile
Memory
Store and
Recall
Control
Circuitry
One
of
Decoder
Resistor
Array
RH/VH
U/D
INC
CS
Transfer
Gates
Thirty
VCC
VSS
RL/VL
RW/VW
Control
and
Memory
Up/Down
(U/D)
Increment
(INC)
Device Select
(CS)
VCC (Supply Voltage)
VSS (Ground)
RH/VH
RW/VW
RL/VL
General
Detailed
0
1
2
28
29
30
31
Two
APPLICATION NOTE
A V A I L A B L E
AN20 AN42–53 AN71 AN73 AN88 AN91–92 AN99 AN115 AN120 AN124 AN133 AN134 AN135
XDCP is a trademark of Xicor, Inc.
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