DS1973
4-kbit EEPROM iButton
TM
www.iButton.com
SPECIAL FEATURES
4096 bits Electrically Erasable
Programmable Read Only Memory
(EEPROM)
Overdrive mode boosts communication
speed to 142 kbits per second
256鈥揵it scratchpad ensures integrity of data
transfer
Memory partitioned into 256鈥揵it pages for
packetizing data
Reduces control, address, data and power to
a single data pin
8鈥揵it family code specifies DS1973
communication requirements to reader
Reads and writes over a wide voltage range
of 2.8V to 6.0V from 鈥?0擄C to +85擄C
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鈥揥ire
廬
protocol ensure compatibility with iButton
family
Button shape is self鈥揳ligning with cup鈥?/div>
shaped probes
Durable stainless steel case engraved with
registration number withstands harsh
environments
Easily affixed with self鈥搒tick 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)
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
ORDERING INFORMATION
DS1973-F3
DS1973-F5
F3 MicroCan
F5 MicroCan
F3 MICROCAN
3.10
0.36
0.51
c
1993
F5 MICROCAN
5.89
0.36
16.25
0.51
c
1993
16.25
YYWW REGISTERED RR
YYWW REGISTERED RR
F3
23
17.35
73
23
17.35
000000FBC52B
000000FBD8B3
DATA
GROUND
DATA
GROUND
All dimensions shown in millimeters.
1 of 2
050200
1
2
