19-4891; Rev 8/09
DS1982
1Kb Add-Only iButton
SPECIAL FEATURES
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
. 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
. 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 16.3kbps
. Standard 16mm 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
. 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
. 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
ORDERING INFORMATION
DS1982-F3+
DS1982-F5+
F3 MicroCan
F5 MicroCan
+Denotes a lead(Pb)-free/RoHS-compliant product.
EXAMPLES OF ACCESSORIES
iButton and 1-Wire are registered trademarks of Maxim Integrated Products, Inc.
DS9096P
DS9101
DS9093RA
DS9093F
DS9092
Self-Stick Adhesive Pad
Multi-Purpose Clip
Mounting Lock Ring
Snap-In Fob
iButton Probe
F3 MicroCan
F5 MicroCan
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