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參數(shù)資料
| 型號： | X9271UV-2.7 |
| 元件分類： | 數(shù)字電位計(jì) |
| 英文描述： | 50K DIGITAL POTENTIOMETER, 3-WIRE SERIAL CONTROL INTERFACE, 256 POSITIONS, PDSO14 |
| 封裝： | PLASTIC, TSSOP-14 |
| 文件頁數(shù)： | 1/23頁 |
| 文件大?。?/td> | 151K |
| 代理商： | X9271UV-2.7 |
REV 1.2 4/13/04
Characteristics subject to change without notice.
1 of 23
www.xicor.com
X9271
Single Digitally-Controlled (XDCPTM) Potentiometer
FEATURES
256 Resistor Taps
SPI Serial Interface for write, read, and transfer
operations of the potentiometer
Wiper Resistance, 100
typical @ VCC = 5V
16 Nonvolatile Data Registers
Nonvolatile Storage of Multiple Wiper Positions
Power On Recall. Loads Saved Wiper Position on
Power Up.
Standby Current < 3A Max
VCC: 2.7V to 5.5V Operation
50K
, 100K versions of End to End Resistance
100 yr. Data Retention
Endurance: 100,000 Data Changes per Bit per
Register
14-Lead TSSOP, 16-Lead CSP (Chip Scale
Package)
Low Power CMOS
DESCRIPTION
The X9271 integrates a single digitally controlled
potentiometer
(XDCP)
on
a
monolithic
CMOS
integrated circuit.
The digital controlled potentiometer is implemented
using 255 resistive elements in a series array. Between
each element are tap points connected to the wiper
terminal through switches. The position of the wiper on
the array is controlled by the user through the SPI bus
interface. The potentiometer has associated with it a
volatile Wiper Counter Register (WCR) and a four
nonvolatile Data Registers that can be directly written
to and read by the user. The contents of the WCR
controls the position of the wiper on the resistor array
though the switches. Powerup recalls the contents of
the default data register (DR0) to the WCR.
The
XDCP
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, and signal processing.
Single Supply / Low Power / 256-tap / SPI bus
APPLICATION NOTES AND DEVELOPMENT SYSTEM
A V A I L A B L E
AN99 AN115 AN124 AN133 AN134 AN135
FUNCTIONAL DIAGRAM
50K
and 100K
RH
RL
RW
POT
VCC
VSS
SPI
Bus
Power On Recall
Wiper Counter
Register (WCR)
Data Registers
16 Bytes
Interface
Bus
Interface
and Control
Address
Data
Status
Write
Read
Transfer
Inc/Dec
Control
256-taps
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| X9271UVI | 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:Single Digitally-Controlled (XDCP) Potentiometer |
| X9271UVI-2.7 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Single Supply/Low Power/256-Tap/SPI Bus |
| X9271UXXX | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DIGITAL POTENTIOMETER|CMOS|BGA|PLASTIC |
| X9271UXXX-2.7 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DIGITAL POTENTIOMETER|CMOS|BGA|PLASTIC |
| X9271UXXXI | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DIGITAL POTENTIOMETER|CMOS|BGA|PLASTIC |
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