Have you seen this one: PI4ULS3V08MZLE Pericom | PI4ULS3V08MZLE-ND | DigiKey
Aren't you also going to need interfacing to the STM32?
Have you seen this one: PI4ULS3V08MZLE Pericom | PI4ULS3V08MZLE-ND | DigiKey
Aren't you also going to need interfacing to the STM32?