(China (Mainland))
Product Summary
The DS1990A/F3 is a rugged data carrier that acts as an electronic registration number for automatic identification. It consists of a factory-lasered, 64-bit ROM that includes an unique 48-bit serial number, an 8-bit CRC and an 8-bit Family Code (01h).
Parametrics
Absolute maximum ratings: (1)Voltage on any Pin Relative to Ground:-0.5V to +7.0V; (2)Operating Temperature:-40℃ to +85℃; (3)Storage Temperature:-55℃ to +125℃.
Features
Features: (1)Upgrade of DS1990 allows multiple Serial Number iButtons to reside on a common bus; (2)Unique 48–bit serial number; (3)Low-cost electronic key for access control; (4)8-bit CRC for checking data integrity; (5)Can be read in less than 5 ms; (6)Operating temperature range of -40℃ to +85℃.
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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