How many amps can the GPIO pins provide?

Discussion in 'UDOO QUAD' started by Cornstalks, Feb 20, 2016.

  1. Cornstalks

    Cornstalks New Member

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    I know the I/O pins of the UDOO QUAD run at 3.3 volts, but what amperage are they rated for? The Arduino Due pins only provide (source) 3 mA or 15 mA (depending on the pin). However, the DIY NAS "Bazinga" video makes it sound like the I/O pins can supply up to 150 mA. I want to use the GPIO pins for some power but I don't want to draw too much current.

    I've tried looking at UDOO's pinout sheet, datasheet, and starting manual, but I can't see this documented anywhere. So here are my questions:

    Can all the pins provide the same current?
    What is the maximum safe supply current for a single GPIO pin?
    What is the maximum cumulative supply current that can be supplied by all the GPIO pins at the same time?
    What's the maximum current the ground pin can take?
    What's the maximum current of the 3.3 volt and 5 volt pins (the ones that aren't GPIO, but just provide power)?
     
  2. paulbearne

    paulbearne New Member

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  3. sirrab

    sirrab UDOOer

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    I'd be very conservative, and not expect more than a few milliamps.
     
  4. Andrea Rovai

    Andrea Rovai Well-Known Member

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    I'm sorry but NXP doesn't provide these data.
     

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