VDD1PF0/OSC_IN2PF1/OSC_OUT3NRST4VDDA/VREF+5PA06PA17PA28PA39PA410PA511PA612PA713PB014PB115VSS16VDD17PA818PA919PA1020PA1121PA1222PA1323PA1424PA1525PB326PB427PB528PB629PB730BOOT031VSS32