x9312w Intersil Corporation, x9312w Datasheet

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x9312w

Manufacturer Part Number
x9312w
Description
E2pot ?onvolatile Digital Potentiometer
Manufacturer
Intersil Corporation
Datasheet

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Terminal Voltage 0V to +15V, 100 Taps
X9312
FEATURES
FUNCTIONAL DIAGRAM
E
©Xicor, Inc. 1994, 1995 Patents Pending
3865-2.4 12/1/95 T1/C0/D0 NS
AN42 • AN44–48 • AN50 • AN52 • AN53 • AN71 • AN73
2
POT™ is a trademark of Xicor, Inc.
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
100 Year Wiper Position Data Retention
X9312Z = 1K
X9312W = 10K
X9312U = 50K
X9312T = 100K
Memory and Recalled on Power-Up
A V A I L A B L E
GND
V CC
U/D
INC
A
CS
PPLICATION
E
N
2
NONVOLATILE
POT™ Nonvolatile Digital Potentiometer
OTES
STORE AND
CIRCUITRY
COUNTER
UP/DOWN
CONTROL
MEMORY
RECALL
7-BIT
7-BIT
HUNDRED
DECODER
X9312
ONE-
ONE
OF
1
99
98
97
96
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 (50K ) each tap point represents 505 .
All Xicor nonvolatile memories are designed and tested
for applications requiring extended endurance and data
retention.
2
1
0
TRANSFER
GATES
RESISTOR
ARRAY
Characteristics subject to change without notice
V H
V L
V W
3865 FHD F01

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x9312w Summary of contents

Page 1

... 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 7-BIT INC UP/DOWN ...

Page 2

X9312 PIN DESCRIPTIONS V and The high (V ) and low (V ) terminals of the X9312 H L are equivalent to the fixed terminals of a mechanical potentiometer. The minimum voltage is 0V and the maximum ...

Page 3

X9312 DEVICE OPERATION There are three sections of the X9312: the input control, counter and decode section; the nonvolatile memory; and the resistor array. The input control section oper- ates just like an up/down counter. The output of this counter ...

Page 4

... V Referenced – X9312Z, X9312W, X9312U, and X9312T ....... 15V Lead Temperature (Soldering 10 seconds) ....... 300 C Wiper Current ..................................................... 1mA ANALOG CHARACTERISTICS Electrical Characteristics End-to-End Resistance Tolerance ..................... 20% Power Rating X9312Z, .................................................... 225mW X9312W, X9312U, and X9312T ................. 25mW Wiper Current ............................................ 1mA Max. ...

Page 5

... VL Terminal Voltage VL CS, INC, U/D Input IN (5) C Capacitance STANDARD PARTS Part Number Maximum Resistance X9312Z X9312W X9312U X9312T Notes: (4) Typical values are for and nominal supply voltage. A (5) This parameter is periodically sampled and not 100% tested. Max. Supply Voltage +70 C X9312 ...

Page 6

X9312 A.C. CONDITIONS OF TEST Input Pulse Levels Input Rise and Fall Times Input Reference Levels A.C. OPERATING CHARACTERISTICS (Over recommended operating conditions unless otherwise specified) Symbol Parameter CS to INC Setup t Cl INC HIGH to U/D Change t ...

Page 7

X9312 PACKAGING INFORMATION 8-LEAD PLASTIC DUAL IN-LINE PACKAGE TYPE P HALF SHOULDER WIDTH ON ALL END PINS OPTIONAL 0.015 (0.38) NOTE: ALL DIMENSIONS IN INCHES (IN PARENTHESES IN MILLIMETERS) NOTE: ALL DIMENSIONS IN INCHES (IN PARENTHESES IN MILLIMETERS) 0.430 (10.92) ...

Page 8

X9312 PACKAGING INFORMATION 8-LEAD PLASTIC SMALL OUTLINE GULL WING PACKAGE TYPE S PIN 1 INDEX (4X) 7 0.050 (1.27) 0 – 8 NOTE: ALL DIMENSIONS IN INCHES (IN PARENTHESIS IN MILLIMETERS) 0.150 (3.80) 0.158 (4.00) PIN 1 0.014 (0.35) 0.019 ...

Page 9

X9312 ORDERING INFORMATION X9312X LIMITED WARRANTY Devices sold by Xicor, Inc. are covered by the warranty and patent indemnification provisions appearing in its Terms of Sale only. Xicor, Inc. makes no warranty, express, statutory, implied description regarding the ...

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