The STM32F401RBT6: The 84 MHz core, combined with the ART Accelerator (flash prefetch), keeps the pipeline fed without wait states for most code — so the headline speed is real throughput, not a marketing number.
64-LQFP — rework-friendly, layout-practical
The 64-LQFP package (10x10 mm) is surface-mount only. All dissipation goes through the leads.
ROHS3 compliant.
It is not AEC-Q100 qualified, so it is not the pick for under-hood automotive, but it handles the typical industrial environment without derating concerns.