We are operating it at a Vcc of +3.3V but I have a few ports where I would like to pull up the output to +5V through some high resistances, and the datasheet isn't clear to me what happens. 5V tolerant isn't the same as 5V friendly.
First of all, do I have to worry about latch-up?
Second, if latch-up is not a problem, what is the voltage - current relationship when Vio exceeds Vcc? Are there high leakage currents, or does it just look like an open drain?
Thank you in advance.
