iButton Temperature Loggers DS1921G DS1922 DS1923

iButton Hygrochron Temperature Humidity Loggers

DS9490 USB to 1-Wire/iButton Adapter

Applications/Uses

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

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. For a list of suitable 1-Wire network cables, refer to the Connectivity Matrix table in the DS1402x 1-Wire network cables data sheet. Both adapters are based on the DS2490 USB-to-1-Wire bridge chip.

Key Features

• 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

DS1921G Thermochron iButton Device

DS1921H High-Resolution Thermochron iButton Devices

DS1921Z High-Resolution Thermochron iButton Devices

DS1922E iButton High-Temperature Logger with 8KB Data-Log Memory

DS1922L iButton Temperature Loggers with 8KB Data-Log Memory

DS1922T iButton Temperature Loggers with 8KB Data-Log Memory

DS1923 iButton Hygrochron Temperature/Humidity Logger with 8KB Data-Log Memory

DS1925 iButton High-Density Temperature Logger with 122KB Data-Log Memory

DS9097U-S09 Universal 1-Wire COM Port Adapter

DS1402D-DR8 1-Wire Network Cables