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DS1990R Serial Number IButton

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Description

19-4894; Rev 8/09 DS1990R Serial Number iButton www.maxim-ic.com GENERAL .
The DS1990R Serial Number iButton is a rugged data carrier that serves as an electronic registration number for automatic identification.

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Features

* Upgrade of DS1990A Guarantees Presence Pulse on Contact Can be Read in Less Than 5ms Operating Range: 2.8V to 6.0V, -40°C to +85°C COMMON iButton FEATURES
* Unique Factory-Lasered 64-Bit Registration Number Assures Error-Free Device Selection and Absolute Traceability Because

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