DS1982 datasheet(1/23 Pages) DALLAS

Part #	DS1982

Description	1-kbit Add-Only iButton

PDF	23 Pages

Scroll/Zoom	100%

Manufacturer	DALLAS [Dallas Semiconductor]

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

Logo

1 / 23 page

1 of 23

011800

SPECIAL FEATURES

1024 bits Electrically Programmable Read-

Only Memory (EPROM) communicates with

the economy of one signal plus ground

EPROM partitioned into four 256-bit pages

for randomly accessing packetized data

Each memory page can be permanently

write-protected to prevent tampering

Device is an “add only” memory where

additional data can be programmed into

EPROM without disturbing existing data

Architecture allows software to patch data by

superseding an old page in favor of a newly

programmed page

Reduces control, address, data, power, and

programming signals to a single data pin

8-bit family code specifies DS1982

communications requirements to reader

Reads over a wide voltage range of 2.8V to

6.0V from -40°C to +85°C; programs at

11.5V to 12.0V from -40°C to +50°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 traceability 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 (4th Edit.); Intrinsically Safe

Apparatus, Approved under Entity Concept

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

and D Locations (application pending)

F3 MICROCAN

F5 MICROCAN

All dimensions shown in millimeters.

DS1982

1-kbit Add-Only iButton

TM

www.iButton.com

DATA

GROUND

0.36

0.51

5.89

c 1993

YYWW REGISTERED RR

17

09

000000FBD8B3

16.25

17.35

DATA

GROUND

0.36

0.51

3.10

c 1993

YYWW REGISTERED RR

97

09

000000FBC52B

16.25

17.35

Similar Part No. - DS1982

Manufacturer	Part #	Datasheet	Description
Maxim Integrated Produc...	DS1982	695Kb / 24P	1Kb Add-Only iButton Rev 8/09
	DS1982-F3+	695Kb / 24P	1Kb Add-Only iButton Rev 8/09
	DS1982-F5+	695Kb / 24P	1Kb Add-Only iButton Rev 8/09

More results

Similar Description - DS1982

Manufacturer	Part #	Datasheet	Description
Dallas Semiconductor	DS1973	47Kb / 2P	4-kbit EEPROM iButton
	DS1985	440Kb / 25P	16-kbit Add-Only iButton
	DS2502	451Kb / 3P	1 kbit Add-Only Memory
	DS2506	558Kb / 25P	64-kbit Add-Only Memory
	DS2505	525Kb / 24P	16-kbit Add-Only Memory
	DS2502	737Kb / 22P	1 kbit Add-Only Memory
	DS1986	548Kb / 27P	64-kbits Add-Only iButton?
Maxim Integrated Produc...	DS1982	695Kb / 24P	1Kb Add-Only iButton Rev 8/09
Maxim Integrated Produc...	DS1985	696Kb / 26P	16Kb Add-Only iButton Rev 8/09
Dallas Semiconductor	DS2505	800Kb / 24P	16-kbit Add-Only Memory

More results

DS1982 Datasheet(PDF) 1 Page - Dallas Semiconductor

DS1982 Datasheet(HTML) 1 Page - Dallas Semiconductor

Similar Part No. - DS1982

Similar Description - DS1982

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

Datasheet Download

Link URL