| 1 | VSS/GND | POWER | |
| 2 | PA6 | I/O | TIM1_BKIN, I2C2_SMBA, SPI1_MISO, LPUART1_CTS, DEBUG_SUBGHZSPI_ MISOOUT, TIM16_CH1, CM4_EVENTOUT |
| 3 | PA5 | Digital Input | TIM2_CH1, TIM2_ETR, SPI2_MISO, SPI1_SCK, DEBUG_SUBGHZSPI_ SCKOUT, LPTIM2_ETR, CM4_EVENTOUT |
| 4 | PA7 | Digital Input | TIM1_CH1N, I2C3_SCL, SPI1_MOSI, COMP2_OUT, DEBUG_SUBGHZSPI_ MOSIOUT, TIM17_CH1, CM4_EVENTOUT |
| 5 | PA8 | Digital Input | MCO, TIM1_CH1, SPI2_SCK/I2S2_CK, USART1_CK, LPTIM2_OUT, CM4_EVENTOUT |
| 6 | PA9 | Digital Input | TIM1_CH2, SPI2_NSS/I2S2_WS, 12C1_SCL, SPI2_SCK/I2S2_CK, USART1_TX, CM4_EVENTOUT |
| 7 | PA3 | Digital Input | TIM2_CH4, I2S2_MCK, USART2_RX, LPUART1_RX, CM4_EVENTOUT |
| 8 | PA2 | Digital Input | LSCO, TIM2_CH3, USART2_TX, LPUART1_TX, COMP2_OUT, DEBUG_PWR_LDORDY, CM4_EVENTOUT |
| 9 | PA1 | Digital Input | TIM2_CH2, LPTIM3_OUT, 12C1_SMBA, SPI1_SCK, USART2_RTS, LPUART1_RTS, DEBUG_PWR_REGLP2S, CM4_EVENTOUT |
| 10 | PA0 | I/O | TIM2_CH1, I2C3_SMBA, I2S_CKIN, USART2_CTS, COMP1_OUT, DEBUG_PWR_REGLP1S, TIM2_ETR, CM4_EVENTOUT |
| 11 | PB8 | I/O | TIM1_CH2N, I2C1_SCL, RF_IRQ2, TIM16_CH1, CM4_EVENTOUT |
| 12 | PB7 | I/O | LPTIM1_IN2, TIM1_BKIN, 12C1_SDA, USART1_RX, TIM17_CH1N, CM4_EVENTOUT |
| 13 | PB6 | I/O | LPTIM1_ETR, I2C1_SCL, USART1_TX, TIM16_CH1N, CM4_EVENTOUT |
| 14 | PB5 | I/O | LPTIM1_IN1, I2C1_SMBA, SPI1_MOSI, RF_IRQ1, USART1_CK, COMP2_OUT, TIM16_BKIN, CM4_EVENTOUT |
| 15 | PB2 | I/O | LPTIM1_OUT, I2C3_SMBA, SPI1_NSS, DEBUG_RF_SMPSRDY, CM4_EVENTOUT |
| 16 | PB12 | I/O | TIM1_BKIN, I2C3_SMBA, SPI2_NSS/ 12S2_WS, LPUART1_RTS, CM4_EVENTOUT |
| 17 | PA10 | I/O | RTC_REFIN, TIM1_CH3, I2C1_SDA, SPI2_MOSI/I2S2_SD, USART1_RX, DEBUG_RF_HSE32RDY, TIM17_BKIN, CM4_EVENTOUT |
| 18 | PA11 | I/O | TIM1_CH4, TIM1_BKIN2, LPTIM3_ETR, I2C2_SDA, SPI1_MISO, USART1_CTS, DEBUG_RF_NRESET, CM4_EVENTOUT |
| 19 | PA12 | I/O | TIM1_ETR, LPTIM3_OUT, I2C2_SCL, SPI1_MOSI, USART1_RTS, CM4_EVENTOUT |
| 20 | PB4 | I/O | SWDCLK, TIM3_CH1, I2C2_SMBA, SPI1_NSS, USART1_CTS, COMP2_OUT, CM4_EVENTOUT |
| 21 | GND | POWER | |
| 22 | PB3 | I/O | SWDIO, TIM3_CH2, I2C2_SDA, SPI1_SCK, USART1_RTS, CM4_EVENTOUT |
| 23 | PA15 | I/O | SWDIO, TIM2_CH1, USART2_RX, LPUART1_RX, CM4_EVENTOUT |
| 24 | SWDIO | I/O | Serial Wire Debug Data Input/Output |
| 25 | SWDCLK | I/O | Serial Wire Debug Clock Input |
| 26 | RESET | Input | External Reset Pin |
| 27 | 3.3V | POWER | 3.3V Power Supply |
| 28 | VBATT | POWER | Battery Power Supply Input |
| 29 | AVDD | POWER | Analog Power Supply |
| 30 | GND | POWER | |
| 31 | GND | POWER | |
| 32 | GND | POWER | |
| 33 | GND | POWER | |
| 34 | PC13 | I/O | RF Control |
| 35 | PA4 | I/O | RF Power |
| 36 | GND | POWER | |