The 79 I/O lines and integrated EBI/EMI interface allow direct connection to external memory or FPGAs without a glue-logic CPLD.
Supply range and analog peripherals
The supply range of 1.62 V to 3.6 V lets this MCU run directly from a 2-cell alkaline or single Li-ion battery without a regulator, simplifying the power tree.
100-VFBGA — rework and layout considerations
The 100-VFBGA package measures 7x7 mm with a 0.50 mm ball pitch. That pitch demands a 4-layer PCB for reliable fan-out; two-layer boards will struggle to route all 79 I/O without via stubs. Under a hot-air station, the small body and low thermal mass mean the part heats quickly — keep the profile below 245°C peak and pre-bake the reel at 125°C for 24 hours if the moisture-sensitive level (MSL) label is missing. The corner pin-1 indicator is a small dot; verify it under magnification before placement.