2 MB Flash in a 10×10 UFBGA — BOM-fit note
The STM32H563IIK6 is a 32-bit ARM Cortex-M33 MCU with 2 MB of on-chip Flash memory, housed in a 176+25UFBGA (10×10 mm) package. The 2 MB Flash density suits firmware images that need room for a full RTOS, middleware stacks, and application code without external memory — a single-chip BOM for a mid-complexity control or IoT endpoint. The 201-UFBGA footprint (0.5 mm ball pitch) demands a four-layer PCB for fan-out; a two-layer board will not break out the inner balls reliably. The surface-mount assembly profile follows standard JEDEC MSL-3 moisture sensitivity — bake before reflow if the shelf-life seal is broken.
For a design starting today, this part is a valid selection without a forced migration horizon.