192 KB Flash, 20 KB SRAM — sizing the firmware budget
For a LoRa end-node waking every hour to send a sensor reading, the wide supply tolerance simplifies the power tree and saves a regulator's quiescent current.
For a BOM that needs multi-year supply assurance, this is a clean fit — no LTB math or broker dependency required.
100-LQFP (14x14) — board footprint and routing
Keep the decoupling caps close to each VDD/VSS pair — the datasheet's typical layout is a good starting point for first-power bring-up.