Maxim USB Male to USB Cable Assembly

Technical Reference
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): MY
Product Details

USB to 1-Wire/iButton Adapter

The DS9490 series is a uniquely designed USB bridge and holder for a single F5-size iButton, with a high-speed 12 Mbps USB Interface, which supports standard and overdrive 1-wire communications. Slew-Rate-Controlled 1-wire timing and active pullup for improved 1-wire network performance.

The DS9490R has a RJ11 interface for standard connectivity accessories such as the DS1402D-DR8
DS9490B has an iButton® Interface and retains a fixed iButton. This Maxim product comes with a built in custom DS2401 identification chip, and the IButton is securely held behind a latched door.

Features and Benefits

• High-Speed 12Mbps Universal Serial Bus (USB) Interface
• 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
• Built-In Custom DS2401 Identification Chip
• Reads all 1-Wire and iButton Devices. Writes All Except EPROM 1-Wire/iButton Devices
• Supports Standard and Overdrive 1-Wire Communication
• DS9490B has an iButton Interface and Retains a Fixed iButton


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


Please note that any defect or non – conformance of this product must be discovered and reported to RS within 20 days of purchase.

The iButton is a computer chip enclosed in a 17mm diameter stainless steel can. Because of this unique and durable container, up-to-date information can travel with a person or object anywhere they go. It can be mounted anywhere because it is rugged enough to withstand harsh environments, indoors or outdoors. It is small and portable enough to attach to a key fob, ring, watch or other personal items. It can be used daily for applications such as access control to buildings and computers, asset management, and various data logging tasks.

Available to back order for despatch 22.09.2020
Price Each (In a Tube of 24)
kr 254,866
(exc. VAT)
kr 318,582
(inc. VAT)
Per unit
Per Tube*
24 - 24
kr 254,866
kr 6 116,784
48 - 48
kr 223,553
kr 5 365,272
72 +
kr 193,892
kr 4 653,408
*price indicative
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