DS1971-F3 Maxim Integrated Products, DS1971-F3 Datasheet
DS1971-F3
Manufacturer Part Number
DS1971-F3
Description
DS1971 256 Bit EePROM Ibutton
Manufacturer
Maxim Integrated Products
Datasheet
1.DS1971-F3.pdf
(3 pages)
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DS1971-F3
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SPECIAL FEATURES
§ 256-bit Electrically Erasable Programmable
§ EEPROM organized as one 256-bit page
§ 64-bit one-time programmable application
§ Reduces control, address, data, power, and
§ 8-bit family code specifies DS1971
§ Reads and writes over a wide voltage range
COMMON iButton FEATURES
§ Unique, factory-lasered and tested 64-bit
§ Multidrop controller for MicroLAN
§ Digital identification and information by
§ Chip-based data carrier compactly stores
§ Data can be accessed while affixed to object
F3 MICROCAN
All dimensions shown in millimeters.
www.dalsemi.com
Read Only Memory (EEPROM)
communicates with the economy of one
signal plus ground
register is automatically write-protected after
programming
programming signals to a single data pin
communications requirements to reader
of 2.8V to 6.0V from -40°C to +85°C
registration number (8-bit family code + 48-
bit serial number + 8-bit CRC tester) assures
absolute traceability because no two parts are
alike
momentary contact
information
0.36
DATA
GROUND
0.51
3.10
000000FBC52B
54
YYWW REGISTERED RR
TM
c 1993
14
16.25
17.35
1 of 3
F5 MICROCAN
§ Economically communicates to bus master
§ Standard 16 mm diameter and 1-Wire
§ Button shape is self–aligning with cup-
§ Durable stainless steel case engraved with
§ Easily affixed with self-stick adhesive
§ Presence detector acknowledges when reader
§ Meets UL#913 (4th Edit.); Intrinsically Safe
ORDERING INFORMATION
DS1971-F3
DS1971-F5
256-Bit EEPROM iButton
0.36
DATA
with a single digital signal at 16.3k bits per
second
protocol ensure compatibility with iButton
family
shaped probes
registration number withstands harsh
environments
backing, latched by its flange, or locked with
a ring pressed onto its rim
first applies voltage
Apparatus, Approved under Entity Concept
for use in Class I, Division 1, Group A, B, C
and D Locations (application pending)
GROUND
5.89
0.51
TM
000000FBD8B3
D4
YYWW REGISTERED RR
c 1993
14
F3 MicroCan
F5 MicroCan
16.25
17.35
DS1971
082099
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DS1971-F3 Summary of contents
Page 1
... 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 and D Locations (application pending) ORDERING INFORMATION DS1971-F3 DS1971-F5 F5 MICROCAN 0.36 16.25 17.35 DATA ...
Page 2
... CRC, and an 8- bit Family Code (14H) plus 256 bits of EEPROM. The power to program and read the DS1971 is derived entirely from the 1-Wire communication line. Data is transferred serially via the 1-Wire protocol which requires only a single data lead and a ground return ...
Page 3
... DS1971 BLOCK DIAGRAM Figure DS1971 ...