PicoMite VGA

Author	Message
Mixtel90 Guru Joined: 05/10/2019 Location: United Kingdom Posts: 8963	Posted: 07:24am 28 Sep 2022       Assuming you are powering the PicoMite from a 5V supply, one way might be to use a resistor and 3V9 zener (or, even better, a proper temperature-compensated shunt regulator like a LM334Z) to an "over voltage" point and use a conventional silicon diode with it's cathode to that rather than to VCC. That would give you protection above 3V3 with a lower leakage.