280 MHz Cortex-M7 with 2 MB Flash — what this means for the BOM
The STM32H7A3VIT6Q: The 100-LQFP package (14x14 mm body) is a hand-solderable, inspectable footprint that reworks cleanly with hot air — no underfill or X-ray required, unlike finer-pitch or BGA alternatives.
Peripheral set and connectivity — what is on the pins
With 80 I/O lines and a connectivity list that includes CANbus, USB OTG, Ethernet (via EBI/EMI), SD/SDIO/MMC, multiple SPI and I²C interfaces, SAI for audio, and SPDIF, this MCU can serve as the central controller in a motor-drive panel, an industrial gateway, or a human-machine interface. The three 12-bit DACs and sixteen 16-bit ADC channels handle analog sensing and output without external converters for most mid-range precision tasks.
The operating supply range spans 1.62 V to 3.6 V, which covers both 1.8 V and 3.3 V logic rails without a separate regulator for the core. Not rated for the full automotive under-hood range (125°C), but fine for cabin or chassis-adjacent applications that stay inside the 85°C boundary.