NXP MK20DX128VFM5, 32bit ARM Cortex M4 Microcontroller, Kinetis, 50MHz, 128 KB Flash, 32-Pin HVQFN

The Microcontroller is a member K20 Sub-Family which features a hardware CRC module to support fast cyclic redundancy checks and 128 bit unique identification number per chip. Multiple low power modes to provide power optimization based on application requirements. It has memory protection unit with multi master protection.

Periodic interrupt timers
16 bit low power timer
Carrier modulator transmitter
Real time clock
3 to 32 MHz crystal oscillator
32 kHz crystal oscillator
Multi purpose clock generator