1Kb Add-Only iButton
19-4891; Rev 8/09
SPECIAL FEATURES
1024 bits Electrically Programmable ReadOnly Memory (EPROM) communicates with the ...
Description
19-4891; Rev 8/09
SPECIAL FEATURES
1024 bits Electrically Programmable ReadOnly 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 writeprotected 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
ORDERING INFORMATION
DS1982-F3+
F3 MicroCan
DS1982-F5+
F5 MicroCan
+Denotes a lead(Pb)-free/RoHS-compliant product.
EXAMPLES OF ACCESSORIES
DS9096P
Self...
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