Hi, We have developed a prototype project based on the Teensy 3.2 and we were moving forward with a custom PCB utilizing the 3.2 reference design and PJRC bootloader chip. We are not able to get the MK20DX64VLH7 chip at this time but are under a time crunch. Can we substitute with the MK20DX64VLH5 and keep everything thing else the same? Seems like it is just the speed that is different (72 MHz for the VLH7 and 50 MHz for the VLH5) and could adjust the clock speed setting at compile time?

Can this be a simple substitution or are we missing something else?

Any help is greatly appreciated.

Thank you