DS1994 4kb Plus Time Memory iButton www.
iButton.
com SPECIAL FEATURES 4096 bits of Read/Write Nonvolatile Memory § 256-bit Scratchpad Ensures Integrity of Data Transfer § Memory Partitioned into 256-bit Pages for Packetizing Data com § Data Integrity Assured with Strict Read/Write Protocols § Contains Real-Time Clock/Calendar in Binary Format § Interval Timer Can Automatically Accumulate Time When Power is Applied § Programmable Cycle Counter can Accumulate the Number of System PowerOn/Off Cycles § Programmable Alarms Can Be Set to Generate Interrupts for Interval Timer, RealTime Clock, and/or Cycle Counter § Write-Protect Feature Provides Tamperproof Time Data § Programmable...

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