VDD1PC14-OSC_IN2PA15-OSC32_OUT3NRST4VDDA5PA0-CK_IN6PA17PA28PA39PA410PA511PA612PA713PB014PB115PB216VDD17PA818PA919PA1020PA1121PA1222PA1323PA1424PA1525PB326PB427PB528PB629PB730BOOT031PB832VSS33