What the STM32F745VGH6 brings to the board
The STM32F745VGH6 is an STMicroelectronics ARM Cortex-M7 MCU from the STM32F7 series, clocked at 216 MHz with a 32-bit single-core architecture. The 100-TFBGA package (8x8 mm) keeps the footprint small, but it is a BGA — no hand-soldering on site; you are committing to a reflow profile and X-ray inspection. This part is built for industrial connectivity: Ethernet MAC, two CAN interfaces, USB OTG, plus multiple SPI, I2C, UART, and SAI serial audio ports. The 82 GPIOs give enough headroom for a modest sensor array or an HMI panel.
At 216 MHz, the Cortex-M7 core with single-precision FPU and DSP extensions handles FFTs, motor-control loops, and protocol parsing without breaking a sweat. The flash wait states need attention in the clock tree setup — the 216 MHz PLL output requires at least one wait state on the internal Flash, or the first branch instruction hard-faults. The internal oscillator gets you booting, but an external crystal is the right call for Ethernet timing.
BGA package — plan the rework flow
The 100-TFBGA (8x8 mm) is a fine-pitch BGA. No field swap without a hot-air station and a stencil. The 82 I/O are all on the BGA balls; verify the ball-map against your PCB layout before committing the board spin.