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Topic: Mini USB logic level voltage (Read 869 times) previous topic - next topic

mthe

Aug 08, 2007, 10:52 am Last Edit: Aug 08, 2007, 11:02 am by mthe Reason: 1
It would be nice if the VCCIO of the Mini USB could be selected in a way like described here in the FTDI datasheet on page 22.

I've made a little low-power Arduino-compatible setup with an ATmega8L running on 3.3V. I can't program it "in-circuit" because of the logic level difference (I'm putting it in a breadboard on 5V all the time to program it). The FT232R has a logic level translator built-in, so why not make use of it?

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