4-kbit EEPROM iButton - Dallas Semiconducotr
Description
www.
DataSheet4U.
com
DS1973 4-kbit EEPROM iButtonTM
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–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 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)
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
DataSheet 4 U .
com
www.
DataSheet4U.
com
DS1973
E...
Similar Datasheet
