DS1973 datasheet(1/2 Pages) DALLAS

Part #	DS1973

Description	4-kbit EEPROM iButton

PDF	2 Pages

Scroll/Zoom	100%

Manufacturer	DALLAS [Dallas Semiconductor]

Direct Link	https://www.maximintegrated.com/en.html

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050200

SPECIAL FEATURES

4096 bits Electrically Erasable

Programmable Read Only Memory

(EEPROM)

Overdrive mode boosts communication

speed to 142 kbits per second

256–bit scratchpad ensures integrity of data

transfer

Memory partitioned into 256–bit pages for

packetizing data

Reduces control, address, data and power to

a single data pin

8–bit family code specifies DS1973

communication requirements to reader

Reads and writes over a wide voltage range

of 2.8V to 6.0V from –40°C to +85°C

COMMON iButton FEATURES

Unique, factory-lasered and tested 64-bit

registration number (8-bit family code +

48-bit serial number + 8-bit CRC tester)

assures absolute identity because no two

parts are alike

Multidrop controller for MicroLAN

Digital identification and information by

momentary contact

Chip-based data carrier compactly stores

information

Data can be accessed while affixed to object

Economically communicates to bus master

with a single digital signal at 16.3 kbits per

second

Standard 16 mm diameter and 1–Wire

®

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 (4

th Edit.); Intrinsically Safe

Apparatus, Approved under Entity Concept

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

and D Locations (application pending)

ORDERING INFORMATION

DS1973-F3

F3 MicroCan

DS1973-F5

F5 MicroCan

F3 MICROCAN

F5 MICROCAN

DS1973

4-kbit EEPROM iButton

TM

www.iButton.com

DATA

GROUND

0.36

0.51

3.10

c 1993

YYWW REGISTERED RR

F3

23

000000FBC52B

16.25

17.35

DATA

GROUND

0.36

0.51

5.89

c 1993

YYWW REGISTERED RR

73

23

000000FBD8B3

16.25

17.35

All dimensions shown in millimeters.

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