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Re: Micro-controller pin protection techniques

Question asked by Muralidhar M on Apr 15, 2017
Latest reply on Apr 21, 2017 by soledad


     Most of the Manufacturers use Low pass RC filters in the data lines of USB pins & also in GPIO pins. some of the manufacturers connect resistor to micro-controller pin first & then capacitor & some manufacturers connect Capacitor to the MCU pins first & then resistors. I saw your application note AN2727. Please go through the attachments & please tell me what is the standard one to follow for our data lines(GPIO pins only) protections using low pass RC filter when we connect other devices through FRC or EURO connectors, etc.