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X9251UV24 PDF预览

X9251UV24

更新时间: 2024-11-18 22:10:31
品牌 Logo 应用领域
英特矽尔 - INTERSIL /
页数 文件大小 规格书
22页 353K
描述
Single Supply/Low Power/256-Tap/SPI Bus

X9251UV24 数据手册

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X9251  
®
Single Supply/Low Power/256-Tap/SPI Bus  
Data Sheet  
September 14, 2005  
FN8166.2  
DESCRIPTION  
Quad Digitally-Controlled (XDCP™)  
Potentiometer  
The X9251 integrates four digitally controlled potentio-  
meters (XDCP) on a monolithic CMOS integrated  
circuit.  
FEATURES  
• Four potentiometers in one package  
• 256 resistor taps–0.4% resolution  
• SPI Serial Interface for write, read, and transfer  
operations of the potentiometer  
The digitally controlled potentiometers are imple-  
mented with a combination of resistor elements and  
CMOS switches. The position of the wipers are  
controlled by the user through the SPI bus interface.  
Each potentiometer has associated with it a volatile  
Wiper Counter Register (WCR) and four non-volatile  
Data Registers that can be directly written to and read  
by the user. The content of the WCR controls the  
position of the wiper. At power-up, the device recalls  
the content of the default Data Registers of each DCP  
(DR00, DR10, DR20, and DR30) to the corresponding  
WCR.  
• Wiper resistance: 100typical @ V  
= 5V  
CC  
• 4 Non-volatile data registers for each  
potentiometer  
• Non-volatile storage of multiple wiper positions  
• Standby current < 5µA max  
• V : 2.7V to 5.5V Operation  
CC  
• 50k, 100kversions of total resistance  
• 100 yr. data retention  
• Single supply version of X9250  
• Endurance: 100,000 data changes per bit per  
register  
• 24 Ld SOIC, 24 Ld TSSOP  
• Low power CMOS  
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.  
• Pb-free plus anneal available (RoHS compliant)  
FUNCTIONAL DIAGRAM  
R
R
H3  
R
R
H2  
V
H1  
H0  
CC  
HOLD  
DCP1  
DCP3  
DCP2  
DCP0  
WCR1  
DR10  
DR11  
DR12  
DR13  
WCR3  
DR30  
DR31  
DR32  
DR33  
WCR2  
DR20  
DR21  
DR22  
DR23  
WCR0  
DR00  
DR01  
DR02  
DR03  
A1  
A0  
SO  
SI  
SPI  
Interface  
POWER UP,  
INTERFACE  
CONTROL  
AND  
STATUS  
SCK  
CS  
V
R
R
L3  
R
R
SS  
R
R
R
W3  
WP  
R
W0  
L1  
L0  
L2  
W1  
W2  
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.  
1
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.  
XDCP is a trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2005. All Rights Reserved  
All other trademarks mentioned are the property of their respective owners.  

X9251UV24 替代型号

型号 品牌 替代类型 描述 数据表
X9251UV24Z INTERSIL

完全替代

Single Supply/Low Power/256-Tap/SPI Bus
X9251UV24IZ RENESAS

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