480 MHz Cortex-M7 — what it means on the bench
The STM32H743IIK6TR is a 32-bit ARM Cortex-M7 MCU from STMicroelectronics' STM32H7 series, clocked at 480 MHz. That core speed, paired with 2 MB of Flash and 1 MB of RAM, puts it in the class of parts that can run a real-time OS, a TCP/IP stack, and a graphics frame buffer without breaking a sweat. The 140 I/O lines and the full suite of connectivity — CANbus, Ethernet, USB OTG, multiple SPI/I²C/UART — mean it was designed for a system-on-chip role in industrial controllers, motor drives, or human-machine interfaces where you need one chip to handle the control loop, the display, and the fieldbus gateway.
Industrial temperature range — where it lives
Rated for -40°C to 85°C and 1.62 V to 3.6 V supply range.
Package and footprint
The 176+25 UFBGA (10x10 mm) is a 201-ball fine-pitch BGA. That means a multi-layer PCB with microvias and careful fanout — not a two-layer board. The 140 GPIOs are distributed across the ball grid, so the layout engineer needs to plan the signal breakout before routing. Rework is possible with a good hot-air station and flux, but it is not a hand-solder part.