Obsolete — plan for a last-time-buy or alternate
For existing designs that already qualify this part, the only sourcing path is the independent market — surplus inventory, new-old-stock, or broker channels. Any procurement for this order code should be treated as a last-time-buy or bridge-buy; the part will not be replenished by the manufacturer.
84 I/O in a 100-LQFP — layout and rework considerations
The 100-LQFP package (14x14 mm body) with 84 general-purpose I/O lines gives the board designer a dense but reworkable footprint. The part is surface-mount only, so the PCB must be designed for reflow or selective soldering. Decoupling should follow ST's recommended layout: a 100 nF ceramic per VDD pair plus a 4.7 µF bulk cap near the supply entry.