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DS1990R

Part Number	DS1990R
Manufacturer	Maxim Integrated Products
Description	Serial Number IButton
Published	Nov 4, 2009
Detailed Description	19-4894; Rev 8/09 DS1990R Serial Number iButton www.maxim-ic.com GENERAL DESCRIPTION The DS1990R Serial Number iButton...
Datasheet	DS1990R PDF File

Overview

19-4894; Rev 8/09 DS1990R Serial Number iButton www.
maxim-ic.
com GENERAL DESCRIPTION The DS1990R Serial Number iButton is a rugged data carrier that serves as an electronic registration number for automatic identification.
Data is transferred serially through the 1-Wire protocol, which requires only a single data lead and a ground return.
Every DS1990R is factory lasered with a guaranteed unique 64-bit registration number that allows for absolute traceability.
The durable stainless-steel iButton package is highly resistant to environmental hazards such as dirt, moisture, and shock.
Its compact coin-shaped profile is self-aligning with mating receptacles, allowing the DS1990R to be used e...

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