DS1990R-F5# ROM iButton (with presence pulse)

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Quick Overview

DS1990R-F5# ROM iButton (with presence pulse)


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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 easily by human operators. Accessories permit the DS1990R iButton to be mounted on almost any object, including containers, pallets, and bags.

Key Features

  • Can Be Read in Less Than 5ms
  • Operating Range: 2.8V to 6.0V, -40°C to +85°C
  • Unique Factory-Lasered 64-Bit Registration Number Assures Error-Free Device Selection and Absolute Traceability Because No Two Parts are Alike
  • Built-In Multidrop Controller for 1-Wire Net
  • Digital Identification by Momentary Contact
  • Data can be Accessed While Affixed to Object
  • Economically Communicates to Bus Master with a Single Digital Signal at 16.3kbps
  • Button Shape is Self-Aligning with Cup-Shaped Probes
  • Durable Stainless-Steel Case Engraved with Registration Number Withstands Harsh Environments
  • Easily Affixed with Self-Stick Adhesive Backing, Latched by its Flange, or Locked with a Ring Pressed Onto its Rim
  • Presence Detector Acknowledges when Reader First Applies Voltage
  • Implements legacy commands to allow for reverse compatibility with older systems


  • Access Control
  • Inventory Control
  • Tool Management
  • Work-in-Progress Tracking

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Additional Information

Delivery Normally delivered from stock
SKU hc00051
Technical Information No additional technical information available.

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