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X9312TSIT3 PDF预览

X9312TSIT3

更新时间: 2024-09-26 04:53:55
品牌 Logo 应用领域
XICOR 光电二极管
页数 文件大小 规格书
9页 65K
描述
Digital Potentiometer, 1 Func, 100000ohm, Increment/decrement Control Interface, 100 Positions, CMOS, PDSO8, PLASTIC, SOIC-8

X9312TSIT3 数据手册

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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  
Terminal Voltage 0V to +15V, 100 Taps  
X9312  
Digitally Controlled Potentiometer (XDCP)  
FEATURES  
DESCRIPTION  
• Solid-state potentiometer  
• 3-wire serial interface  
• Terminal voltage, 0 to +15V  
• 100 wiper tap points  
The Xicor X9312 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.  
—Wiper position stored in nonvolatile memory  
and recalled on power-up  
• 99 resistive elements  
Temperature compensated  
—End to end resistance range ± 20%  
• Low power CMOS  
The potentiometer is implemented by a resistor array  
composed of 99 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.  
—V = 5V  
CC  
—Active current, 3mA max.  
—Standby current, 1mA max.  
• High reliability  
—Endurance, 100,000 data changes per bit  
—Register data retention, 100 years  
The device can be used as a three-terminal  
potentiometer or as a two-terminal variable resistor in  
a wide variety of applications including:  
• R  
values = 10Kand 100KΩ  
TOTAL  
• Packages  
—8-lead SOIC and DIP  
– control  
– parameter adjustments  
– signal processing  
BLOCK DIAGRAM  
U/D  
INC  
CS  
7-Bit  
R /V  
99  
H
H
Up/Down  
Counter  
V
(Supply Voltage)  
CC  
98  
97  
96  
R /V  
Up/Down  
H
H
(U/D)  
7-Bit  
Nonvolatile  
Memory  
One  
of  
Control  
and  
Memory  
Increment  
(INC)  
R
/V  
W
W
One  
Transfer  
Gates  
Resistor  
Array  
Hundred  
Decoder  
Device Select  
(CS)  
R /V  
L
L
2
Store and  
Recall  
Control  
Circuitry  
V
(Ground)  
SS  
1
0
V
V
CC  
SS  
General  
R /V  
L
L
R
/V  
W
W
Detailed  
XDCP is a trademark of Xicor, Inc.  
REV 1.1 10/15/00  
Characteristics subject to change without notice. 1 of 9  
www.xicor.com  

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