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X9312ZPM 参数 Datasheet PDF下载

X9312ZPM图片预览
型号: X9312ZPM
PDF下载: 下载PDF文件 查看货源
内容描述: E2POT⑩非易失性数字电位计 [E2POT⑩ Nonvolatile Digital Potentiometer]
分类和应用: 数字电位计
文件页数/大小: 9 页 / 52 K
品牌: XICOR [ XICOR INC. ]
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A
PPLICATION
N
OTES
A V A I L A B L E
AN42 • AN44–48 • AN50 • AN52 • AN53 • AN71 • AN73
Terminal Voltage 0V to +15V, 100 Taps
X9312
X9312
E
2
POT™ Nonvolatile Digital Potentiometer
FEATURES
DESCRIPTION
The Xicor X9312 is a solid state nonvolatile potentiom-
eter and is ideal for digitally controlled resistance trim-
ming.
The X9312 is a resistor array composed of 99 resistive
elements. Between each element and at either end are
tap points accessible to the wiper element. 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 nonvola-
tile memory and then be recalled upon a subsequent
power-up operation.
The resolution of the X9312 is equal to the maximum
resistance value divided by 99. As an example, for the
X9312U (50KΩ) each tap point represents 505Ω.
All Xicor nonvolatile memories are designed and tested
for applications requiring extended endurance and data
retention.
Compatible with X9C102/103/104/503
Low Power CMOS
—Active Current, 3mA Max
—Standby Current, 1mA Max
99 Resistive Elements
—Temperature Compensated
±
20% End to End Resistance Range
— 0 to +15V Range
100 Wiper Tap Points
—Wiper Positioned via Three-Wire Interface
—Similar to TTL Up/Down Counter
—Wiper Position Stored in Nonvolatile
Memory and Recalled on Power-Up
100 Year Wiper Position Data Retention
X9312Z = 1K
X9312W = 10K
X9312U = 50K
X9312T = 100K
FUNCTIONAL DIAGRAM
U/D
INC
CS
7-BIT
UP/DOWN
COUNTER
99
98
97
VH
7-BIT
NONVOLATILE
MEMORY
ONE
OF
ONE-
HUNDRED
DECODER
96
TRANSFER
GATES
2
RESISTOR
ARRAY
VCC
GND
STORE AND
RECALL
CONTROL
CIRCUITRY
1
0
VL
VW
3865 FHD F01
E
2
POT™ is a trademark of Xicor, Inc.
©Xicor, Inc. 1994, 1995 Patents Pending
3865-2.4 12/1/95 T1/C0/D0 NS
1
Characteristics subject to change without notice