The NXP MK20DX128VMP5 is a 32-bit ARM Cortex-M4 microcontroller clocked at 50 MHz with 128 KB Flash and 16 KB RAM. It integrates USB OTG, a 13-channel 16-bit ADC, and peripherals including DMA, I²S, PWM, and multiple serial interfaces (I²C, SPI, UART/USART, IrDA).
The 50 MHz ARM Cortex-M4 core with single-cycle multiply and hardware divide handles real-time control loops (PID, FOC) and DSP-style filtering without an external coprocessor. The 128 KB Flash is sized for a moderate firmware image — enough for a bootloader, RTOS kernel, and application code for a multi-axis drive or a display panel. The 16 KB RAM supports a few hundred variables and a modest stack; if your algorithm needs larger data buffers, the 2 KB EEPROM emulation in Flash can be leveraged for calibration constants.
