Hi,
We have products using microcontroller of MMC2114CFCPV33 and as we got to know this part obsoleted need similar part suggestions.
1. looking for NXP same family, so that major code changes may not to do it.
2. We used SCI communication
3. If it has Flash memory it will be benefit for storing multiple programs.
Thanks,
Ravindar
FYI. We have the ARM core MCUs.