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DS1990A

Part Number	DS1990A
Manufacturer	Maxim Integrated
Description	Serial Number iButton
Published	Nov 6, 2017
Detailed Description	AVAILABLE DS1990A Serial Number iButton General Description The DS1990A serial number iButton® is a rugged data carri...
Datasheet	DS1990A PDF File

Overview

AVAILABLE DS1990A Serial Number iButton General Description The DS1990A 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 DS1990A 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 selfaligning with mating receptacles, allowing the DS1990A to be used easily by human operators.
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