https://devzone.nordicsemi.com/f/nordic-q-a/11542/detailed-description-of-the-gpio-blockHi, Is it possible to get a more detailed description of the GPIO block than what is available in the reference manual? Specifically i&#39;m interested in how the disconnect function actually works and any possibilities of leakage currents, depending onen-USTelligent Community 13Wed, 27 Jan 2016 15:37:09 GMThttps://devzone.nordicsemi.com/thread/43633?ContentTypeID=1Wed, 27 Jan 2016 15:37:09 GMT137ad170-7792-4731-bb38-c0d22fbe4515:56683e80-ce40-4304-a229-8b4cbd16ea50bjorn-spockeli<p><strong>Disconnect:</strong></p> <ul> <li>Output disconnect. Output transistors are turned off, gates for NMOS pulled to ground and PMOS pulled to VDD.</li> <li>Input disconnect. This turns of the schmitt trigger on the input.</li> </ul> <p><strong>ESD Diodes</strong>:</p> <p>All GPIO pins on nRF52 have ESD diodes to VSS and VDD, they are reversed biased diodes, but will start to conduct if the GPIO is pulled above VDD or below VSS.</p> <p>-Bjørn</p><div style="clear:both;"></div>