VDD_31OSC_IN/PD02OSC_OUT/PD13NRST4VSSA5VDDA6PA0-WKUP7PA18PA29PA310PA411PA512PA613PA714PB015PB116PB217VSS_118VDD_119PA820PA921PA1022PA1123PA1224PA1325VSS_226VDD_227PA1428PA1529PB330PB431PB532PB633PB734BOOT035VSS_336EP37