https://devzone.nordicsemi.com/f/nordic-q-a/32555/electrical-schematic-of-io-buffersI wonder if Nordic reveals electrical schematic of IO buffers? I have taken some current consumption measurements recently and I have realized that setting a pin as input without pulling can also greatly increase current consumption under some conditionsen-USTelligent Community 13Tue, 20 Mar 2018 17:24:46 GMThttps://devzone.nordicsemi.com/thread/125220?ContentTypeID=1Tue, 20 Mar 2018 17:24:46 GMT137ad170-7792-4731-bb38-c0d22fbe4515:36bf1a68-e9f1-4574-9e6a-3851b7eb4740Kenneth<p>Hi, we don&#39;t have detailed electrical schematic of IO buffers, but I expect the case here is that the input is floating without a defined level. In such case you can have&nbsp;excessive current due to a current path may occur internally between VDD and GND, this will not damage the part, but can cause current of several hundreds of uA. This is a common problem with floating inputs in general, typical workarounds are either set as output, use pull up or down, or disconnect the input internally when not in use. There is an application note from TI that also describe more details <a href="http://www.ti.com/lit/an/scba004d/scba004d.pdf">here</a>.</p><div style="clear:both;"></div>