I have a MCU I/O that connects directly to the input pin of another IC. I want to insert a circuit/IC that will use another
to an input pin of another IC. I want to use a second MCU IO to control a circuit / IC that will switch between either the first I/O or a +12V power source.
So my question is, what is the best way to do this? Off the top of my head, I am thinking of putting a standard diode on the MCU pin and use a couple of transistors or is there a single IC that will accomplish this for me?
(Note: the MCU pin is not 12V tolerant).
Thanks in advance for any help and/or schematics from working projects that do this
