The MK22FN256VMP12 runs a single ARM Cortex-M4 core at 120 MHz, backed by 256 KB of Flash and 48 KB of RAM. That clock rate is enough to handle a USB OTG stack plus a moderate sensor-fusion loop without starving the application — think motor-control telemetry or a multi-protocol gateway aggregating SPI and I²C peripherals. The 48 KB RAM (organized as 48K x 8) holds a few kilosamples of ADC data or a modest RTOS heap; if your design queues large USB buffers or runs a TCP/IP stack, budget the RAM carefully against the 40 available GPIOs.
Rated from -40 to 105 °C, this MCU operates in environments where ambient heat exceeds commercial-grade limits.