I want to communicate with my Teensy 4.0 via serial from the com port of my computer. I looked at the T3.6 documentation and saw the use of a MAX232 chip to deal with +-12v to TTL level communication. I have a MAX232AEPE chip that I wired up but after looking at its datasheet, it lists 5v IO and the T4 says 3.3V only. Do I need to step the 5V I/O from the MAX232 chip down to 3.3v before sending data to the T4? If so, will I need to do it bidirectionally or will the MAX232 see the 3.3V as a high coming from the T4?

Thanks in advance.