Pin-to-pin compatibility and power domain concerns: STM32F769 → STM32H743/H753/etc drop-in replacement?

[HONGa]

Hello ST Community,

I’m looking to upgrade the MCU on an existing board originally designed around the STM32F769 (LQFP176 variant). I’d like to know:

1. Is the STM32H743 or H753 (LQFP176 package) **pin-to-pin compatible** with the STM32F769 such that it can serve as a drop-in replacement?
2. What changes are needed in the **power supply circuitry**, given the F7 uses the BYPASS_REG pin while the H7 uses integrated LDO/SMPS and software-based regulator control?
3. Are there other design considerations I must be aware of when making this change (e.g., bootloader, clock configuration, peripheral differences)?

I’ve already reviewed the migration guide AN5293, but I’d appreciate any practical insights or caveats.

Thank you!

[TDK]

Use CubeMX to see pin compatibility between chips.

In short, they're not going to be pin to pin compatible. More than a few pins are different.