USB-to-1-Wire/iButton 1.8V Adapter



The DS9481R-200 is a USB-to-1-Wire® adapter for easy PC connectivity to 1-Wire devices. The adapter provides an RJ11 connector with the signals to communicate with all 1-Wire and iButton® devices that support a 1.8V data I/O level. Additionally, the adapter provides the support and signaling to program 1-Wire/iButton EEPROM devices. To provide a total hardware solution, the DS9481R-200 can readily be used with the family of DS9120 socket adapters to create a 1-Wire PC programmer for 1-Wire slave devices (contact factory for more information). The equivalent slave hardware solution for the iButton is the DS1402D-DR8.


  • Driver Support for Windows® 8, Windows 7, and Windows Vista® Operating Systems
  • Enumerates as a Virtual PC COM Port by Use of the Prolific PL-2303HXD USB-to-UART Bridge IC
  • Emulates the DS2480B 1-Wire Line Driving Functionality
  • 1-Wire EEPROM Programming
  • 1.8V Read/Write Operation to 1-Wire/iButton Devices
  • RJ11 Interface for Standard Connectivity Accessories such as the DS9120 Family of Socket Adapters
  • Supports Standard and Overdrive 1-Wire Communication
  • Provides Strong Pullup to 1.8V
  • Fully Compliant with USB 2.0 Specification


  • 消费品鉴别与认证
  • 授权管理的参考设计
  • 传感器/配件识别和校准
  • 系统知识产权保护
申请可靠性报告: DS9481R-200 
型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C   Material Composition  

备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

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