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MFG:Dallas  Package Cooled:IBACC  D/C:8  

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Part Number: DS9490R

 

MFG: Dallas

Package Cooled: IBACC

D/C: 8

Description: The DS9490B is a USB bridge and holder for a single F5-size iButton. The iButton is securely held behind a latche...


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DS9490R General 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. 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: http://www.ibutton.com/software/tmex/index.html

DS9490R 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

DS9490R Typical Application

Software Authorization-Protection against software piracy by tying software operation to the presence of
  iButton hardware iButton Initialization and Download-
Loggers like the Thermochron® can be missioned and downloaded. Monetary iButtons can be refilled with
  money.
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.  

DS9490R datasheet

DS9490R
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