| 脚号 | 引脚名称 | 主功能 | 默认复用 | 重定义 | 备注 |
| 1 | VBAT | VBAT | -- | -- | 说明1 |
| 2 | PC13-TAMPER-RTC | PC13 | TAMPER-RTC | -- | 说明3 |
| 3 | PC14-OSC32_IN | PC14 | OSC32_IN | -- | 说明3 |
| 4 | PC15-OSC32_OUT | PC15 | OSC32_OUT | -- | 说明3 |
| 5 | OSC_IN | OSC_IN | -- | CAN_RX | 晶振 |
| 6 | OSC_OUT | OSC_OUT | -- | CAN_TX | 晶振 |
| 7 | NRST | NRST | -- | -- | 复位 |
| 8 | PC0 | PC0 | ADC123_IN10 | -- | ADC |
| 9 | PC1 | PC1 | ADC123_IN11 | -- | ADC |
| 10 | PC2 | PC2 | ADC123_IN12 | -- | ADC |
| 11 | PC3 | PC3 | ADC123_IN13 | -- | ADC |
| 12 | VSSA | VSSA | -- | -- | 模拟地 |
| 13 | VDDA | VDDA | -- | -- | 模拟电 |
| 14 | PA0-WKUP | PA0 | WKUP/USART2_CTS ADC123_IN0 TIM2_CH1_ETR TIM5_CH1/TIM8_ETR | -- | 说明4 说明5 说明6 |
| 15 | PA1 | PA1 | USART2_RTS/ADC123_IN1 TIM5_CH2/TIM2_CH2 | -- | |
| 16 | PA2 | PA2 | USART2_TX/TIM5_CH3 ADC123_IN2/TIM2_CH3 | -- | |
| 17 | PA3 | PA3 | USART2_RX/TIM5_CH4 ADC123_IN3/TIM2_CH4 | -- | |
| 18 | VSS_4 | VSS_4 | -- | -- | 数字地 |
| 19 | VDD_4 | VDD_4 | -- | -- | 数字电 |
| 20 | PA4 | PA4 | SPI1_NSS/USART2_CK DAC_OUT1/ADC12_IN4 | -- | |
| 21 | PA5 | PA5 | SPI1_SCK/DAC_OUT2 ADC12_IN5 | -- | |
| 22 | PA6 | PA6 | SPI1_MISO/TIM8_BKIN ADC12_IN6/TIM3_CH1 | TIM1_BKIN | |
| 23 | PA7 | PA7 | SPI1_MOSI/TIM8_CH1N ADC12_IN7/TIM3_CH2 | TIM1_CH1N | |
| 24 | PC4 | PC4 | ADC12_IN14 | -- | |
| 25 | PC5 | PC5 | ADC12_IN15 | -- | |
| 26 | PB0 | PB0 | ADC12_IN8/TIM3_CH3 TIM8_CH2N | TIM1_CH2N | |
| 27 | PB1 | PB1 | ADC12_IN9/TIM3_CH4 TIM8_CH3N | TIM1_CH3N | |
| 28 | PB2 | PB2/BOOT1 | -- | -- | |
| 29 | PB10 | PB10 | I2C2_SCL/USART3_TX | TIM2_CH3 | |
| 30 | PB11 | PB11 | I2C2_SDA/USART3_RX | TIM2_CH4 | |
| 31 | VSS_1 | VSS_1 | -- | -- | 数字地 |
| 32 | VDD_1 | VDD_1 | -- | -- | 数字电 |
| 33 | PB12 | PB12 | SPI2_NSS/I2S2_WS I2C2_SMBA/USART3_CK TIM1_BKIN | -- | 说明7 |
| 34 | PB13 | PB13 | SPI2_SCK/I2S2_CK USART3_CTS/TIM1_CH1N | -- | |
| 35 | PB14 | PB14 | SPI2_MISO/TIM1_CH2N USART3_RTS | -- | |
| 36 | PB15 | PB15 | SPI2_MOSI/I2S2_SD TIM1_CH3N | -- | |
| 37 | PC6 | PC6 | I2S2_MCK/TIM8_CH1 SDIO_D6 | TIM3_CH1 | 说明8 |
| 38 | PC7 | PC7 | I2S3_MCK/TIM8_CH2 SDIO_D7 | TIM3_CH2 | |
| 39 | PC8 | PC8 | TIM8_CH3/SDIO_D0 | TIM3_CH3 | |
| 40 | PC9 | PC9 | TIM8_CH4/SDIO_D1 | TIM3_CH4 | |
| 41 | PA8 | PA8 | USART1_CK TIM1_CH1/MCO | -- | |
| 42 | PA9 | PA9 | USART1_TX/TIM1_CH2 | ||
| 43 | PA10 | PA10 | USART1_RX/TIM1_CH3 | ||
| 44 | PA11 | PA11 | USART1_CTS/USBDM CAN_RX/TIM1_CH4 | ||
| 45 | PA12 | PA12 | USART1_RTS/USBDP CAN_TX/TIM1_ETR | ||
| 46 | PA13 | JTMS/SWDIO | -- | PA13 | |
| 47 | VSS_2 | VSS_2 | -- | -- | 数字地 |
| 48 | VDD_2 | VDD_2 | -- | -- | 数字电 |
| 49 | PA14 | JTCK/SWCLK | -- | PA14 | |
| 50 | PA15 | JTDI | SPI3_NSS/I2S3_WS | TIM2_CH1_ETR PA15/SPI1_NSS | |
| 51 | PC10 | PC10 | USART4_TX/SDIO_D2 | USART3_TX | |
| 52 | PC11 | PC11 | USART4_RX/SDIO_D3 | USART3_RX | |
| 53 | PC12 | PC12 | USART5_TX/SDIO_CK | USART3_CK | |
| 54 | PD2 | PD2 | TIM3_ETR/USART5_RX SDIO_CMD | -- | |
| 55 | PB3 | JTDO | SPI3_SCK/I2S3_CK | PB3/TRACESWO TIM2_CH2 SPI1_SCK | |
| 56 | PB4 | NJTRST | SPI3_MISO | PB4/TIM3_CH1 SPI1_MISO | |
| 57 | PB5 | PB5 | I2C1_SMBA/SPI3_MOSI I2S3_SD | TIM3_CH2 SPI1_MOSI | |
| 58 | PB6 | PB6 | I2C1_SCL/TIM4_CH1 | USART1_TX | |
| 59 | PB7 | PB7 | I2C1_SDA/TIM4_CH2 | USART1_RX | |
| 60 | BOOT0 | BOOT0 | -- | -- | |
| 61 | PB8 | PB8 | TIM4_CH3/SDIO_D4 | I2C1_SCL CAN_RX | |
| 62 | PB9 | PB9 | TIM4_CH4/SDIO_D5 | I2C1_SDA CAN_TX | |
| 63 | VSS_3 | VSS_3 | -- | -- | 数字地 |
| 64 | VDD_3 | VDD_3 | -- | -- | 数字电 |
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