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


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Data Sheet
FULL DATA SHEET (PDF, 576kB)
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Description
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
    DS9490B 
    DS9490B USB iButton Holder
    F5 Package Compatible
    Permanently/Semi-permanently Retains an iButton
    USB Port
    USB Port Adapters
    With ID
    DS9490R 
    USB to 1-Wire RJ11
    USB Port
    USB Port Adapters
    With ID
    See All iButton Readers and Adapters (25)

    Application Notes
  • Application Note 1740: White Paper 6: 1-Wire Drivers Installation Guide for Windows - DS9490
  • Application Note 3358: OneWireViewer User's Guide - DS9490
  • Application Note 3808: What Is an iButton? - DS9490B, DS9490R
  • Application Note 4206: Choosing the Right 1-Wire® Master for Embedded Applications - DS9490

    Evaluation Kits
    none

    Design Guides
  • 1-Wire® PRODUCTS (PDF)

    Reliability Reports
  • Reliability Report: DS9490.pdf
  • Request Reliability Report for:

    Software/Models
    none

    Ordering Information
    Notes:

    1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
    2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
    3. Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
    4. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.


    Devices: 1-2 of 2

    DS9490B Free
    Sample
    Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    DS9490B#  
    IBACC;* pin;

    Use pkgcode/variation: IB#ACC*
    0°C to +70°C RoHS/Lead-Free: RoHS Qualified
    Materials Analysis
    DS9490R Free
    Sample
    Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    DS9490R#  
    IBACC;* pin;

    Use pkgcode/variation: IB#ACC*
    0°C to +70°C RoHS/Lead-Free: RoHS Qualified
    Materials Analysis

    More Information
  • Software Authorization Kit (a free software development kit with source)

    Related Products
    DS1402-BP8, DS1402-BR8, DS1402-RP8, DS1402D-DB8, DS1402D-DR8 1-Wire Network Cables

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




             


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