OSCIN/PF01OSCOUT/PF12NRST3VREF4VDDA5PA06PA17PA28PA39PA410PA511PA612PA713PB014PB115PB216VDD17PA818PA919PA1020PA1121PA1222PA1323PA1424PA1525PB326PB427PB528PB629PB730BOOT0/PB931PB832EP33