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DS9490, DS9490B, DS9490R
USB to 1-Wire/iButton Adapter


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Description
FULL DATA SHEET (PDF, 576kB)
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The DS9490B is a USB bridge and holder for a single F5-size iButton®. The iButton is securely held behind a latched door. The DS9490R is a USB bridge with 1-Wire® RJ11 interface to accommodate 1-Wire receptacles and networks. The DS1402D-DR8 (Blue Dot™) can readily be used in conjunction with the DS9490R to create an iButton PC reader. Both adapters are based on the DS2490 USB to 1-Wire bridge chip.

PC software drivers for Windows® 98, Windows 2000, Windows ME, and Windows XP can be found on the iButton website under software support at: iButton: 1-Wire Drivers for Windows.

Key Features   Applications/Uses
  • High-Speed 12Mbps Universal Serial Bus (USB) Interface
  • Supports Standard and Overdrive 1-Wire Communication
  • Slew-Rate-Controlled 1-Wire Timing and Active Pullup for Improved 1-Wire Network Performance
  • DS9490R has an RJ11 Interface for Standard Connectivity Accessories such as the DS1402D-DR8
  • DS9490B has an iButton Interface and Retains a Fixed iButton
  • Built-In Custom DS2401 Identification Chip
  • Reads all 1-Wire and iButton Devices. Writes All Except EPROM 1-Wire/iButton Devices

 
  • iButton Initialization and Download
  • Demonstration
  • Development
  • Software Authorization

    Key Specifications:   iButton Readers and Adapters
    Part Number Overview Features RoHS Available Price**
    DS9490B 
    DS9490B USB iButton Holder
    F5 Package Compatible
    Permanently/Semi-permanently Retains an iButton
    USB Port
    USB Port Adapters
    With ID
    Yes $13.75 @ 1k
    DS9490R 
    USB to 1-Wire RJ11
    USB Port
    USB Port Adapters
    With ID
    $13.75 @ 1k
    See All iButton Readers and Adapters (25)
    Notes:
    **This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

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    Document Ref.: xxx; 2003-04-25
    This page last modified: 2008-03-12




             


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