150 MHz Cortex-M4 with DSP and FPU
The MK82FN256VDC15 runs a single ARM Cortex-M4 core at 150 MHz — that is the ceiling for single-cycle MAC and hardware divide, so FOC loops on a motor drive or FFT bins on an audio front-end execute without waiting on the bus. The core size is 32-bit single-core, and the part includes DMA, I²S, LVD, POR, and PWM peripherals — the DMA offloads data movement from the CPU, leaving the M4 free to run the control algorithm.
Memory map for code and data
256 KB of flash and 256 KB of SRAM give a balanced split: the flash holds the application image and the SRAM provides a scratchpad for sensor buffers or a display frame store. The EBI/EMI interface extends memory off-chip — a NOR flash for code shadowing or an SRAM for data logging connects without glue logic, though the 121-ball XFBGA package routes the address/data bus through the inner balls, so the PCB stack-up and via fan-out must be planned early.
Analog and connectivity coverage
18 channels of 16-bit ADC cover multi-sensor acquisition — three-phase current sensing on a motor drive plus a thermistor on the heatsink all land on one ADC module sequenced by the DMA. The dual 6-bit DAC and single 12-bit DAC handle analog set-points or waveform generation.
Temperature grade and supply range
An engine-bay ECU or a conveyor-belt controller that sees 85°C on a summer afternoon still has 20°C of margin before the silicon derating curve bites.
Package and board integration
The 121-XFBGA package measures 8x8 mm with a 0.50 mm ball pitch — surface-mount only. The fine pitch forces a 4-layer PCB minimum for fan-out; the inner balls carry the EBI bus and the outer rings handle I/O and power. The supplier device package is 121-XFBGA (8x8).
ROHS3 compliant for global shipping without substance-restriction paperwork.