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DS1986

Part Number	DS1986
Manufacturer	Dallas Semiconductor
Description	64-kbits Add-Only iButton
Published	Jul 5, 2008
Detailed Description	DS1986 64-kbits Add-Only iButtonTM www.iButton.com SPECIAL FEATURES 65536 bits Electrically Programmable Read Only Memo...
Datasheet	DS1986 PDF File

Overview

DS1986 64-kbits Add-Only iButtonTM www.
iButton.
com SPECIAL FEATURES 65536 bits Electrically Programmable Read Only Memory (EPROM) communicates with the economy of one signal plus ground § Overdrive mode boosts communication speed to 142 kbits per second www.
DataSheet4U.
com § EPROM partitioned into two hundred and 56 256-bit pages for randomly accessing packetized data records § Each memory page can be permanently write-protected 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, a...

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