I plan to connect VccB to a 3.3V power source. There are instances where a 5.5V output device will be supplying the inputs to port B. This creates an overdriven input on port B (since VccB is connected to a 3.3V source). The data sheet does not supply a value for Vih (max) for PortB inputs. Vi is specified in "Recommended operating conditions" as 5.5V max. So, the question is: Are the IO ports (port b in particular) considered as inputs that are capable of being driven to 5.5V when VccB is 3.3V? thanks
