Hi,
It is really depend on your application, the requirement of your stepper motor.
Kinetis V Series MCUs are based upon the ARM® Cortex®-M0+, Cortex-M4 and Cortex-M7 cores and are designed for a wide range of BLDC, PMSM and ACIM motor control and digital power conversion applications.
The Kinetis EA series is an entry point to the broad ARM ecosystem and features:
- A low-power ARM Cortex-M0+ core and 8–128 KB of embedded flash
- Excellent EMC/ESD, high temperature and low radiated emissions
- Scalable, highly robust performance solution for cost-sensitive automotive applications.
Attached you will find a PPT on this topic maybe helpful to you.