VDDA5VSSD6PB8B5BOOT0C5PB7A4PB6B4PB5C4PB4A3PB3B3PA15A2PA14B2PA13A1PA12B1PA11C2PA10C1PA9D1PA8E1VDDF1PB11D2PB10E2PB2F2PB1C3PB0D3PA7F3PA6E3PA5F4PA4E4PA3F5PA2E5PA1F6PA0D4VDDAD5VREF+E6NRSTC6PC15- OSC32_OUT (PC15)B6PC14- OSC32_IN (PC14)A6