Hi,
I'm trying to interface a PIC18F46k80 (5V) with a radio module, and I've just realised the module uses 3.3V. I have a circuit built already, and software designed, so I want to know if I can just do a straight swap for a PIC18LF46k80, which runs at 3.3V, without having to change the circuit (except the power supply - and some base resistor values for output pins driving transistors) or the software.
Are they exactly the same except for the operating voltage, or are there things I need to look out for?
Alternatively, is there an IC I can use to convert the 5V signals driving the radio module and convert them to 3.3V levels at a speed of up to 10MHz (And vice versa: 3.3V - 5V)?
Thanks