The MK22FN512VFX12R is an ARM Cortex-M4 MCU running at 120 MHz, with 512 KB of Flash and 128 KB of SRAM. The 32-bit single-core ARM Cortex-M4 includes a single-precision FPU and DSP instructions, so sensor fusion or audio filtering runs in hardware rather than emulated in software.
Dual 16-bit ADC and 12-bit DAC — mixed-signal on one die
Two 16-bit ADCs and one 12-bit DAC are integrated, so a single-chip controller can read a current-sense resistor and a thermistor, then output an analog setpoint without external converters. The 16-bit resolution on the ADC side is enough for precision measurement loops — think 4-20 mA transmitter readback or strain-gauge bridge conditioning — provided the reference is stable. The 12-bit DAC covers analog output for valve positioning or speed-reference voltage.
Rated for -40 to 105 °C, with a supply range of 1.71 to 3.6 V.
Connectivity and I/O count
USB OTG with on-chip PHY, plus I2C, SPI, UART, and IrDA — that is enough serial bandwidth for an HMI panel, a data logger, or a gateway aggregating several fieldbus slices. 60 general-purpose I/O in the 88-QFN package give enough pins for a parallel LCD interface or a bank of optocoupled inputs.