2-in-1 Fob

The 2-in-1 Fob has a DS2490 chip in its handle to convert 1-Wire signaling to USB Communication In this way an iButton, 1-Wire chip, or 1-Wire instrument CAN have a 2-way Communication link with its USB host. Any iButton from the lowest cost to the most sophisticated CAN be mounted in the angled end of the fob. A Java-powered iButton in combination with the 2-in-1 Fob provides the equivalent of a Java Smart Card with a built in reader. Everything fits in the handle, so there is no cable for the notebook connectivity. The USB guard protects the connector from debris and mechanical stresses while attached to a key ring. Pressing the eject latch releases the guard of the 2-in-1 Fob for USB connection. By Maxim Integrated Products
DS1490F 's PackagesDS1490F 's pdf datasheet
DS1490F pdf datasheet download


DS1490F Pinout will be updated soon..., now you can download the pdf datasheet to check the pinouts !
DS1490F circuits will be updated soon..., now you can download the pdf datasheet to check the circuits!

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