Sadly industry, as a whole, does not give us Spice models for the GPIO pins. SpiceI saw a good point there. I wouldn’t think twice about adding couple hundred pF cap on an output without limiting the current to it. It’s basically what most gate capacitance is. Maybe someone can do a simulation or actually capture the inrush current on a scope and see what we are talking about.
would not necessarily give us space charge distribution around the die, but its better
than being totally blind.
That should change.