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DS1985

Part Number	DS1985
Manufacturer	Dallas Semiconductor
Description	16-kbit Add-Only iButton
Published	Jul 5, 2008
Detailed Description	DS1985 16-kbit Add-Only iButtonTM www.dalsemi.com SPECIAL FEATURES 16384 bits Electrically Programmable Read Only Memor...
Datasheet	DS1985 PDF File

Overview

DS1985 16-kbit Add-Only iButtonTM www.
dalsemi.
com SPECIAL FEATURES 16384 bits Electrically Programmable Read Only Memory (EPROM) communicates with the economy of one signal plus ground § EPROM partitioned into sixty-four 256-bit www.
DataSheet4U.
com 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, address, data, power, and programming signals to a single data pin § 8-bit fam...

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