Hello @bogdanurbanczyk
I apologize, but the MCXA153 does not support 5V tolerant I/O.
I recommend using the MCXA154, MCXA155, or MCXA156 instead. These parts support two 5V tolerant I/Os.

The difference is the flash size.

Hope it help you. If you have any further questions or need more information, please let me know.
BR
Alice