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Board Entry Info
| Generic Board | Pkg | Product Line | Flash | RAM | Cortex | FPU | CPU | Wireless | USB | CAN/FDCAN | ETH | SVD |
|---|
| Generic G431C6Ux | U | STM32G431xx | 32 KB | 32 KB | Cortex-M4 | Yes | Single CPU | No | Yes | Yes | No | STM32G431.svd |
| Generic G431C8Ux | U | STM32G431xx | 64 KB | 32 KB | Cortex-M4 | Yes | Single CPU | No | Yes | Yes | No | STM32G431.svd |
| Generic G431CBUx | U | STM32G431xx | 128 KB | 32 KB | Cortex-M4 | Yes | Single CPU | No | Yes | Yes | No | STM32G431.svd |
| Generic G441CBUx | U | STM32G441xx | 128 KB | 32 KB | Cortex-M4 | Yes | Single CPU | No | Yes | Yes | No | STM32G441.svd |
See more info in the STM32duino repository
PWM Timer Pins
| Pin | PWM Timer | Channel | Generic label | B_G431B_ESC1 |
| PA_0 | TIM2 | 1 | D0/A0 | PA_0 |
| PA_1 (no. alternatives: 1) | TIM2 | 2 | D1/A1 | PA_1 |
| PA_1_ALT1 | TIM15 | 1N |
| PA_2 (no. alternatives: 1) | TIM2 | 3 | D2/A2 | PA_2 |
| PA_2_ALT1 | TIM15 | 1 |
| PA_3 (no. alternatives: 1) | TIM2 | 4 | D3/A3 | PA_3 |
| PA_3_ALT1 | TIM15 | 2 |
| PA_4 | TIM3 | 2 | D4/A4 | BOTTOM |
| PA_5 | TIM2 | 1 | D5/A5 | PA_5 |
| PA_6 (no. alternatives: 1) | TIM3 | 1 | D6/A6 | PA_6 |
| PA_6_ALT1 | TIM16 | 1 |
| PA_7 (no. alternatives: 3) | TIM1 | 1N | D7/A7 | PA_7 |
| PA_7_ALT1 | TIM3 | 2 |
| PA_7_ALT2 | TIM8 | 1N |
| PA_7_ALT3 | TIM17 | 1 |
| PA_8 | TIM1 | 1 | D8 | PA_8 |
| PA_9 (no. alternatives: 1) | TIM1 | 2 | D9 | PA_9 |
| PA_9_ALT1 | TIM2 | 3 |
| PA_10 (no. alternatives: 1) | TIM1 | 3 | D10 | PA_10 |
| PA_10_ALT1 | TIM2 | 4 |
| PA_11 (no. alternatives: 2) | TIM1 | 1N | D11 | PA_11 |
| PA_11_ALT1 | TIM1 | 4 |
| PA_11_ALT2 | TIM4 | 1 |
| PA_12 (no. alternatives: 2) | TIM1 | 2N | D12 | PA_12 |
| PA_12_ALT1 | TIM4 | 2 |
| PA_12_ALT2 | TIM16 | 1 |
| PA_13 (no. alternatives: 1) | TIM4 | 3 | D13 | TOP |
| PA_13_ALT1 | TIM16 | 1N |
| PA_14 | TIM8 | 2 | D14 | PA_14 |
| PA_15 (no. alternatives: 1) | TIM2 | 1 | D15 | PA_15 |
| PA_15_ALT1 | TIM8 | 1 |
| PB_0 (no. alternatives: 2) | TIM1 | 2N | D16/A8 | PB_0 |
| PB_0_ALT1 | TIM3 | 3 |
| PB_0_ALT2 | TIM8 | 2N |
| PB_1 (no. alternatives: 2) | TIM1 | 3N | D17/A9 | PB_1 |
| PB_1_ALT1 | TIM3 | 4 |
| PB_1_ALT2 | TIM8 | 3N |
| PB_3 (no. alternatives: 1) | TIM2 | 2 | D19 | PB_3 |
| PB_3_ALT1 | TIM8 | 1N |
| PB_4 (no. alternatives: 2) | TIM3 | 1 | D20 | PB_4 |
| PB_4_ALT1 | TIM8 | 2N |
| PB_4_ALT2 | TIM16 | 1 |
| PB_5 (no. alternatives: 2) | TIM3 | 2 | D21 | PB_5 |
| PB_5_ALT1 | TIM8 | 3N |
| PB_5_ALT2 | TIM17 | 1 |
| PB_6 (no. alternatives: 2) | TIM4 | 1 | D22 | PB_6 |
| PB_6_ALT1 | TIM8 | 1 |
| PB_6_ALT2 | TIM16 | 1N |
| PB_7 (no. alternatives: 2) | TIM3 | 4 | D23 | PB_7 |
| PB_7_ALT1 | TIM4 | 2 |
| PB_7_ALT2 | TIM17 | 1N |
| PB_8 (no. alternatives: 2) | TIM4 | 3 | D24 | PB_8 |
| PB_8_ALT1 | TIM8 | 2 |
| PB_8_ALT2 | TIM16 | 1 |
| PB_9 (no. alternatives: 3) | TIM1 | 3N | D25 | PB_9 |
| PB_9_ALT1 | TIM4 | 4 |
| PB_9_ALT2 | TIM8 | 3 |
| PB_9_ALT3 | TIM17 | 1 |
| PB_10 | TIM2 | 3 | D26 | PB_10 |
| PB_11 | TIM2 | 4 | D27/A11 | RIGHT |
| PB_13 | TIM1 | 1N | D29 | PB_13 |
| PB_14 (no. alternatives: 1) | TIM1 | 2N | D30/A13 | PB_14 |
| PB_14_ALT1 | TIM15 | 1 |
| PB_15 (no. alternatives: 2) | TIM1 | 3N | D31/A14 | PB_15 |
| PB_15_ALT1 | TIM15 | 1N |
| PB_15_ALT2 | TIM15 | 2 |
| PC_6 (no. alternatives: 1) | TIM3 | 1 | D33 | PC_6 |
| PC_6_ALT1 | TIM8 | 1 |
| PC_10 | TIM8 | 1N | D34 | PC_10 |
| PC_11 | TIM8 | 2N | D35 | PC_11 |
| PC_13 (no. alternatives: 1) | TIM1 | 1N | D36 | PC_13 |
| PC_13_ALT1 | TIM8 | 4N |
| PF_0 | TIM1 | 3N | D39/A16 | PF_0 |
ADC Pins
| Pin | ADC | Channel | Generic label | B_G431B_ESC1 |
| PA_0 (no. alternatives: 1) | ADC1 | 1 | D0/A0 | PA_0 |
| PA_0_ALT1 | ADC2 | 1 |
| PA_1 (no. alternatives: 1) | ADC1 | 2 | D1/A1 | PA_1 |
| PA_1_ALT1 | ADC2 | 2 |
| PA_2 | ADC1 | 3 | D2/A2 | PA_2 |
| PA_3 | ADC1 | 4 | D3/A3 | PA_3 |
| PA_4 | ADC2 | 17 | D4/A4 | BOTTOM |
| PA_5 | ADC2 | 13 | D5/A5 | PA_5 |
| PA_6 | ADC2 | 3 | D6/A6 | PA_6 |
| PA_7 | ADC2 | 4 | D7/A7 | PA_7 |
| PB_0 | ADC1 | 15 | D16/A8 | PB_0 |
| PB_1 | ADC1 | 12 | D17/A9 | PB_1 |
| PB_2 | ADC2 | 12 | D18/A10 | PB_2 |
| PB_11 (no. alternatives: 1) | ADC1 | 14 | D27/A11 | RIGHT |
| PB_11_ALT1 | ADC2 | 14 |
| PB_12 | ADC1 | 11 | D28/A12 | PB_12 |
| PB_14 | ADC1 | 5 | D30/A13 | PB_14 |
| PB_15 | ADC2 | 15 | D31/A14 | PB_15 |
| PC_4 | ADC2 | 5 | D32/A15 | PC_4 |
| PF_0 | ADC1 | 10 | D39/A16 | PF_0 |
| PF_1 | ADC2 | 10 | D40/A17 | PF_1 |
UART Pins
| Pin | Peripheral | Signal | Generic label | B_G431B_ESC1 |
| PA_2 (no. alternatives: 1) | LPUART1 | TX | D2/A2 | PA_2 |
| PA_2_ALT1 | USART2 | TX |
| PA_9 | USART1 | TX | D9 | PA_9 |
| PA_14 | USART2 | TX | D14 | PA_14 |
| PB_3 | USART2 | TX | D19 | PB_3 |
| PB_6 | USART1 | TX | D22 | PB_6 |
| PB_9 | USART3 | TX | D25 | PB_9 |
| PB_10 | USART3 | TX | D26 | PB_10 |
| PB_11 | LPUART1 | TX | D27/A11 | RIGHT |
| PC_4 | USART1 | TX | D32/A15 | PC_4 |
| PC_10 (no. alternatives: 1) | UART4 | TX | D34 | PC_10 |
| PC_10_ALT1 | USART3 | TX |
| PA_3 (no. alternatives: 1) | LPUART1 | RX | D3/A3 | PA_3 |
| PA_3_ALT1 | USART2 | RX |
| PA_10 | USART1 | RX | D10 | PA_10 |
| PA_15 | USART2 | RX | D15 | PA_15 |
| PB_4 | USART2 | RX | D20 | PB_4 |
| PB_7 | USART1 | RX | D23 | PB_7 |
| PB_8 | USART3 | RX | D24 | PB_8 |
| PB_10 | LPUART1 | RX | D26 | PB_10 |
| PB_11 | USART3 | RX | D27/A11 | RIGHT |
| PC_11 (no. alternatives: 1) | UART4 | RX | D35 | PC_11 |
| PC_11_ALT1 | USART3 | RX |
| PA_1 | USART2 | RTS | D1/A1 | PA_1 |
| PA_12 | USART1 | RTS | D12 | PA_12 |
| PA_15 | UART4 | RTS | D15 | PA_15 |
| PB_1 | LPUART1 | RTS | D17/A9 | PB_1 |
| PB_12 | LPUART1 | RTS | D28/A12 | PB_12 |
| PB_14 | USART3 | RTS | D30/A13 | PB_14 |
| PA_0 | USART2 | CTS | D0/A0 | PA_0 |
| PA_6 | LPUART1 | CTS | D6/A6 | PA_6 |
| PA_11 | USART1 | CTS | D11 | PA_11 |
| PA_13 | USART3 | CTS | D13 | TOP |
| PB_7 | UART4 | CTS | D23 | PB_7 |
| PB_13 (no. alternatives: 1) | LPUART1 | CTS | D29 | PB_13 |
| PB_13_ALT1 | USART3 | CTS |
SPI Pins
| Pin | Peripheral | Signal | Generic label | B_G431B_ESC1 |
| PA_7 | SPI1 | MOSI | D7/A7 | PA_7 |
| PA_11 | SPI2 | MOSI | D11 | PA_11 |
| PB_5 (no. alternatives: 1) | SPI1 | MOSI | D21 | PB_5 |
| PB_5_ALT1 | SPI3 | MOSI |
| PB_15 | SPI2 | MOSI | D31/A14 | PB_15 |
| PA_6 | SPI1 | MISO | D6/A6 | PA_6 |
| PA_10 | SPI2 | MISO | D10 | PA_10 |
| PB_4 (no. alternatives: 1) | SPI1 | MISO | D20 | PB_4 |
| PB_4_ALT1 | SPI3 | MISO |
| PB_14 | SPI2 | MISO | D30/A13 | PB_14 |
| PC_11 | SPI3 | MISO | D35 | PC_11 |
| PA_5 | SPI1 | SCLK | D5/A5 | PA_5 |
| PB_3 (no. alternatives: 1) | SPI1 | SCLK | D19 | PB_3 |
| PB_3_ALT1 | SPI3 | SCLK |
| PB_13 | SPI2 | SCLK | D29 | PB_13 |
| PC_10 | SPI3 | SCLK | D34 | PC_10 |
| PF_1 | SPI2 | SCLK | D40/A17 | PF_1 |
| PA_4 (no. alternatives: 1) | SPI1 | SSEL | D4/A4 | BOTTOM |
| PA_4_ALT1 | SPI3 | SSEL |
| PA_15 (no. alternatives: 1) | SPI1 | SSEL | D15 | PA_15 |
| PA_15_ALT1 | SPI3 | SSEL |
| PB_12 | SPI2 | SSEL | D28/A12 | PB_12 |
| PF_0 | SPI2 | SSEL | D39/A16 | PF_0 |
I2C Pins
| Pin | Peripheral | Signal | Generic label | B_G431B_ESC1 |
| PA_8 | I2C2 | SDA | D8 | PA_8 |
| PA_14 | I2C1 | SDA | D14 | PA_14 |
| PB_5 | I2C3 | SDA | D21 | PB_5 |
| PB_7 | I2C1 | SDA | D23 | PB_7 |
| PB_9 | I2C1 | SDA | D25 | PB_9 |
| PC_11 | I2C3 | SDA | D35 | PC_11 |
| PF_0 | I2C2 | SDA | D39/A16 | PF_0 |
| PA_8 | I2C3 | SCL | D8 | PA_8 |
| PA_9 | I2C2 | SCL | D9 | PA_9 |
| PA_13 | I2C1 | SCL | D13 | TOP |
| PA_15 | I2C1 | SCL | D15 | PA_15 |
| PB_8 | I2C1 | SCL | D24 | PB_8 |
| PC_4 | I2C2 | SCL | D32/A15 | PC_4 |
CAN Pins
| Pin | Peripheral | Signal | Generic label | B_G431B_ESC1 |
| PA_11 | FDCAN1 | RD | D11 | PA_11 |
| PB_8 | FDCAN1 | RD | D24 | PB_8 |
| PA_12 | FDCAN1 | TD | D12 | PA_12 |
| PB_9 | FDCAN1 | TD | D25 | PB_9 |
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