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

Status
Part Number	Status
DS9490	Active: In Production.
DS9490B	Active: In production, but some versions are no longer available.
DS9490R	Active: In production, but some versions are no longer available.

Description

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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