Maxim Integrated DS9490R
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-to1-Wire bridge chip.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
APPLICATIONS
● Software Authorization—Protection against software piracy by tying software operation to the presence of iButton hardware.● iButton Initialization and Download—Loggers like the ThermochrFoun®nccatniboenmailssDioinaedgarnadms downloaded.
● Demonstration—Demonstrate the features of iButtons or 1-Wire chips on personal computers.
● Development—Aid development of 1-Wire applications by providing a PC interface to verify device contents and state. TYPICAL OPERATING CIRCUIT PC U...