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參數(shù)資料
| 型號： | x9255 |
| 元件分類： | 數(shù)字電位計 |
| 英文描述： | Dual Two-wiper Digitally-Controlled (XDCP) Potentiometer(帶兩個滑動端的雙路數(shù)控電位器(XDCP)) |
| 中文描述： | 雙程雙線雨刮器數(shù)字控制（數(shù)字電位器）電位器（帶兩個滑動端的雙路數(shù)控電位器（數(shù)字電位器）） |
| 文件頁數(shù)： | 1/21頁 |
| 文件大小： | 119K |
| 代理商： | X9255 |
REV 1.6 7/16/03
1 of 21
www.xicor.com
Dual Two-wiper Digitally-Controlled (XDCP) Potentiometer
FEATURES
Dual Two-wiper solid state potentiometer
256 Resistor tap points–0.4% resolution
2-wire serial interface for Write, Read, and
transfer operations of the potentiometer
Up/Down interface for individual potentiometer
wipers
Wiper resistance, 40
typical
Non-volatile storage of wiper positions
Power On Recall Loads saved wiper position on
Power Up.
Standby Current < 20μA Max
Maximum Wiper Current: 3mA
V
CC
: 2.7V to 5.5V operation
2.8k
,
10k
, 50k
,
100k
resistance
Endurance: 100,000 Data changes per bit per
register
100 yr. data retention
24-Lead TSSOP
version of total pot
DESCRIPTION
The X9455 integrates 2 digitally controlled potentiome-
ters (XDCP), each one with dual wipers, on a mono-
lithic CMOS integrated circuit.
The digitally controlled potentiometer is implemented
using 255 resistive elements in a series array. Between
each element are tap points connected to wiper termi-
nals through switches. The position of each wiper on
the array is controlled by the user through the U/D or
2-wire bus interface. Each potentiometer wiper has
associated with it two volatile Wiper Counter Register
(WCR) and each WCR has associated with it four non-
volatile Data Registers that can be directly written to
and read by the user. The contents of the WCR con-
trols the position of the wiper on the resistor array
though the switches. The contents of the default data
registers (DR0A0, DR0B0, DR1A0, DR1B0) are
loaded into the WCR on power up.
The DCP can be used as a four-terminal potentiometer
in a wide variety of applications including the program-
ming of bias voltages, window comparators, and three
resistor programmable networks.
FUNCTIONAL DIAGRAM
V
CC
V
SS
2-wire
Interface
R
W0A
A0
A1
SDA
SCL
CS
U/D
A2
DS0
DS1
WP
WCR0A
DR0A0
DR0A1
DR0A2
DR0A3
R
H0
R
L0
DCP0
WCR0B
DR0B0
DR0B1
DR0B2
DR0B3
R
W0B
R
W1A
WCR1A
DR1A0
DR1A1
DR1A2
DR1A3
R
H1
R
L1
DCP1
WCR1B
DR1B0
DR1B1
DR1B2
DR1B3
R
W1B
POWERUP,
INTERFACE
CONTROL AND
STATUS
Up/Down
Interface
X9455
New Features
Dual Wipers
Dual Interface
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| x9455 | Dual Two-wiper Digitally-Controlled Potentiometer(帶兩個滑動端的雙路數(shù)控電位器) |
| X9268 | Dual Digitally-Controlled (XDCP) Potentiometers(低功耗,低噪聲,雙DCP,抽頭位置掉電自動保存) |
| X9312(中文) | Nonvolatile Digital Potentiometer(非易失性數(shù)字電位器) |
| X9313(中文) | EEPOT Nonvolatile Digital Potentiometer(32個抽頭,-5V~+5V,非易失性數(shù)字電位器) |
| X9314(中文) | EEPOT Nonvolatile Digital Potentiometer(32個抽頭,-5V~+5V,對數(shù)電阻特性,非易失性數(shù)字電位器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| X9258 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Low Noise/Low Power/2-Wire Bus/256 Taps |
| X9258)06 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Quad Digital Controlled Potentiometers |
| X9258_11 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Quad Digital Controlled Potentiometers(XDCP?) |
| X9258_13 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Low Noise/Low Power/2-Wire Bus/256 Taps |
| X9258TB24 | 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:Quad Digital Controlled Potentiometers (XDCP) |
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