72 MHz Cortex-M0+ with 128 KB Flash — where it fits
The NXP MKL82Z128VMC7 is a Kinetis KL8 series 32-bit MCU built around an ARM Cortex-M0+ core clocked at 72 MHz.
The 105°C ceiling is the upper limit for the TA grade; keep the die junction within that bound by accounting for self-heating from I/O switching and peripheral current draw.
Peripherals and data converters
On-chip peripherals include DMA, I²S, LVD, POR, PWM, and WDT — enough for a self-contained system that can sequence power rails, generate multi-phase PWM for a small motor, and stream audio via I²S without loading the core. The data-converter block provides a 12-channel 16-bit ADC and two DACs (one 6-bit, one 12-bit), so analog front-end conditioning can be handled on-chip for low-to-moderate precision loops.