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X9CC102P Datasheet

  • X9CC102P

  • IC

  • 9頁

  • ETC

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A
PPLICATION
N
OTE
A V A I L A B L E
AN20 鈥?AN42鈥?3 鈥?AN71 鈥?AN73 鈥?AN88 鈥?AN91鈥?2 鈥?AN115
Terminal Voltages 鹵5V, 100 Taps
X9C102/103/104/503
Digitally-Controlled (XDCP) Potentiometer
FEATURES
鈥?Solid-State Potentiometer
鈥?Three-Wire Serial Interface
鈥?100 Wiper Tap Points
鈥擶iper Position Stored in Nonvolatile Memory
and Recalled on Power-up
鈥?99 Resistive Elements
鈥擳emperature Compensated
鈥擡nd to End Resistance, 鹵20%
鈥擳erminal Voltages, 鹵5V
鈥?Low Power CMOS
鈥擵
CC
= 5V
鈥擜ctive Current, 3mA Max.
鈥擲tandby Current, 500碌A(chǔ) Max.
鈥?High Reliability
鈥擡ndurance, 100,000 Data Changes per Bit
鈥擱egister Data Retention, 100 Years
鈥?X9C102 = 1 k
W
鈥?X9C103 = 10 k
W
鈥?X9C503 = 50 k
W
鈥?X9C104 = 100 k
W
鈥?Packages
鈥?-Lead SOIC and DIP
FUNCTIONAL DIAGRAMS
DESCRIPTION
The X9Cxxx are Xicor digitally-controlled (XDCP)
potentiometers. The device consists of a resistor array,
wiper switches, a control section, and nonvolatile
memory. The wiper position is controlled by a three-wire
interface.
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.
The device can be used as a three-terminal
potentiometer or as a two-terminal variable resistor in a
wide variety of applications including:
鈥?control
鈥?parameter adjustments
鈥?signal processing
U/D
INC
CS
V
CC
(Supply Voltage)
7-BIT
UP/DOWN
COUNTER
99
98
97
R
H
/V
H
Up/Down
(U/D)
Increment
(INC)
Device Select
(CS)
Control
R
H
/V
H
7-BIT
NONVOLATILE
MEMORY
and
Memory
R
W
/V
W
ONE 96
OF
ONE-
HUNDRED
DECODER
TRANSFER
GATES
RESISTOR
ARRAY
R
L
/V
L
2
STORE AND
RECALL
CONTROL
CIRCUITRY
1
0
R
L
/V
L
R
W
/V
W
Detailed
V
SS
(Ground)
General
V
CC
GND
E
2
POT
鈩?/div>
is a trademark of Xicor, Inc. 11/5/98
漏Xicor, Inc. 1994, 1995 Patents Pending
3863-2.4 2/12/99 T2/C0/D0 SH
1
Characteristics subject to change without notice

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