X9312TS Xicor, X9312TS Datasheet

X9312TS

Manufacturer Part Number

X9312TS

Description

Manufacturer

Xicor

Datasheets

1.X9312TS.pdf (9 pages)

2.X9312TS.pdf (9 pages)

Specifications of X9312TS

Case

SOP8

Date_code

06+

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Terminal Voltage 0V to +15V, 100 Taps

X9312

FEATURES

•

FUNCTIONAL DIAGRAM

©Xicor, Inc. 1994, 1995 Patents Pending

3865-2.4 12/1/95 T1/C0/D0 NS

AN42 • AN44–48 • AN50 • AN52 • AN53 • AN71 • AN73

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

PPLICATION

NONVOLATILE

POT™ Nonvolatile Digital Potentiometer

OTES

STORE AND

CIRCUITRY

COUNTER

UP/DOWN

CONTROL

MEMORY

RECALL

7-BIT

HUNDRED

DECODER

X9312

ONE-

ONE

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.

TRANSFER

GATES

RESISTOR

ARRAY

Characteristics subject to change without notice

V H

V L

V W

3865 FHD F01

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