VDD1PF0-OSC_IN(PF0)2PF1-OSC_OUT(PF1)3NRST4VDDA5PA06PA17PA28PA39PA410PA511PA612PA713PB014PB115VSS16VDD17PA818PA919PA1020PA1121PA1222PA13(SWDIO)23PA14(SWCLK)24PA1525PB326PB427PB528PB629PB730BOOT031VSS32