(China (Mainland))
Product Summary
The DS1994L+ F5 Memory iButton is a rugged read/write data carrier that acts as a localized database, easily accessible with minimal hardware. The DS1994L+ F5 also includes time-keeping functions, a real-time clock/calendar, interval timer, cycle counter, and programmable interrupts, in addition to the nonvolatile memory. These features allow the DS1994L+ F5 to be used to create a stopwatch, alarm clock, time and date stamp, logbook, hour meter, calendar, system power cycle timer, interval timer, and event scheduler.
Parametrics
DS1994L+ F5 absolute maximum ratings: (1)Voltage on any Pin Relative to Ground: -0.5V to +7.0V; (2)Operating Temperature: -40℃ to +70℃; (3)Storage Temperature: -40℃ to +70℃.
Features
DS1994L+ F5 features: (1)4096 bits of Read/Write Nonvolatile Memory; (2)256-bit Scratchpad Ensures Integrity of Data Transfer; (3)Memory Partitioned into 256-bit Pages for Packetizing Data; (4)Data Integrity Assured with Strict Read/Write Protocols; (5)Contains Real-Time Clock/Calendar in Binary Format; (6)Interval Timer Can Automatically Accumulate Time When Power is Applied; (7)Programmable Cycle Counter can Accumulate the Number of System Power-On/Off Cycles; (8)Programmable Alarms Can Be Set to Generate Interrupts for Interval Timer, Real-Time Clock, and/or Cycle Counter; (9)Write-Protect Feature Provides Tamperproof Time Data.
Diagrams
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 DS1904L-F5 |
Maxim Integrated Products |
iButtons |
Data Sheet |
Negotiable |
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DS1904L-F5# |
Maxim Integrated Products |
iButtons RTC iButton |
Data Sheet |
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DS1904L-F5+ |
Maxim Integrated Products |
iButtons |
Data Sheet |
Negotiable |
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DS1920-F5 |
Maxim Integrated Products |
iButtons |
Data Sheet |
Negotiable |
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DS1920-F5+ |
Maxim Integrated Products |
iButtons Temperature iButton |
Data Sheet |
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DS1921G-F5 |
Maxim Integrated Products |
iButtons |
Data Sheet |
Negotiable |
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