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DS1990A

Serial Number iButton

TM

www.dalsemi.com

DS1990A SPECIAL FEATURES

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Upgrade of DS1990 allows multiple Serial

Number iButtons to reside on a common bus

Unique 48鈥揵it serial number

Low-cost electronic key for access control

8-bit CRC for checking data integrity

Can be read in less than 5 ms

Operating temperature range of -40擄C to

+85擄C

Unique, factory-lasered and tested 64-bit

registration number (8-bit family code + 48-

bit serial number + 8-bit CRC tester) assures

absolute traceability because no two parts are

alike

Multidrop controller for MicroLAN

Digital identification by momentary contact

Chip-based data carrier compactly stores

information

Data can be accessed while affixed to an

object

Economically communicates to bus master

with a single digital signal at 16.3k bits per

second

Standard 16 mm diameter and 1-Wire

TM

protocol ensure compatibility with iButton

family

Button shape is self-aligning with cup-

shaped probes

Durable stainless steel case engraved with

registration number withstands harsh

environments

Easily affixed with self-stick adhesive

backing, latched by its flange, or locked with

a ring pressed onto its rim

Presence detector acknowledges when reader

first applies voltage

Meets UL#913 (4th Edit.); Intrinsically Safe

Apparatus, Approved under Entity Concept

for use in Class 1, Division 1, Group A, B, C

and D locations

1 of 10

F3 MICROCAN

TM

3.10

0.36

0.51

c

1993

16.25

YYWW REGISTERED RR

66

01

17.35

000000FBC52B

DATA

COMMON iButton FEATURES

摟

GROUND

F5 MICROCAN

TM

5.89

0.36

0.51

c

1993

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16.25

YYWW REGISTERED RR

E6

01

17.35

000000FBD8B3

DATA

GROUND

All dimensions shown in millimeters

ORDERING INFORMATION

DS1990A-F3

DS1990A-F5

DS9096P

DS9101

DS9093RA

DS9093F

DS9092

F3 MicroCan

F5 MicroCan

Self-Stick Adhesive Pad

Multi-Purpose Clip

Mounting Lock Ring

Snap-In Fob

iButton Probe

EXAMPLES OF ACCESSORIES

081999

next

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