STM32G431KBU6 Detailed explanation of pin function specifications and circuit principle instructions

The model "STM32G431KBU6" is from STMicroelectronics, a well-known global semiconductor manufacturer. Specifically, this microcontroller is part of the STM32G4 series, which is designed for applications requiring high performance and advanced features, such as motor control, industrial applications, and consumer electronics.

This particular model uses a LQFP (Low-profile Quad Flat Package) with 100 pins, not 200 pins as suggested. The pins in the LQFP package correspond to various digital, analog, and power signals, and the full pinout includes features such as GPIOs, UART, SPI, I2C, ADC, DAC, timers, and more.

Pin Function Specifications and Circuit Principle Instructions

Here is a comprehensive breakdown of the pin function specifications and the pinout details for the STM32G431KBU6. It is important to note that this model is available in an LQFP100 package (100 pins), so we will provide an extensive description of all 100 pins.

STM32G431KBU6 Pin Function Table

Pin Number Pin Name Pin Function Description 1 VSSA Analog ground. Connect to ground plane for analog circuits. 2 PA13 SWDIO (Serial Wire Debug Data Input/Output). This pin is used for debugging and programming. 3 PA14 SWCLK (Serial Wire Clock ). Used for serial wire debugging. 4 PA15 JTDI (JTAG Data Input). Used for JTAG debugging. 5 PB3 USART2_TX (USART2 Transmit). Used for serial communication transmit. 6 PB4 USART2_RX (USART2 Receive). Used for serial communication receive. 7 PB5 SPI1_SCK (SPI1 Clock). Used for SPI clock signal. 8 PB6 SPI1_MISO (SPI1 Master In Slave Out). Used for SPI data receive. 9 PB7 SPI1_MOSI (SPI1 Master Out Slave In). Used for SPI data transmit. 10 PB8 I2C1_SCL (I2C Clock). Used for I2C communication clock signal. 11 PB9 I2C1_SDA (I2C Data). Used for I2C communication data signal. 12 PC0 T1_CH1 (Timer 1 Channel 1). Used for timer input capture. 13 PC1 T1_CH2 (Timer 1 Channel 2). Used for timer input capture. 14 PC2 T1_CH3 (Timer 1 Channel 3). Used for timer input capture. 15 PC3 T1_CH4 (Timer 1 Channel 4). Used for timer input capture. 16 PC4 I2C2_SCL (I2C Clock for I2C2). Used for additional I2C communication. 17 PC5 I2C2_SDA (I2C Data for I2C2). Used for additional I2C communication. 18 PC6 USART1_TX (USART1 Transmit). Used for serial communication transmit. 19 PC7 USART1_RX (USART1 Receive). Used for serial communication receive. 20 PD0 USART3_TX (USART3 Transmit). Used for serial communication transmit. 21 PD1 USART3_RX (USART3 Receive). Used for serial communication receive. 22 PD2 SPI2_SCK (SPI2 Clock). Used for SPI communication clock signal. 23 PD3 SPI2_MISO (SPI2 Master In Slave Out). Used for SPI data receive. 24 PD4 SPI2_MOSI (SPI2 Master Out Slave In). Used for SPI data transmit. 25 PD5 I2C3_SCL (I2C Clock for I2C3). Used for additional I2C communication. 26 PD6 I2C3_SDA (I2C Data for I2C3). Used for additional I2C communication. 27 PD7 T2_CH1 (Timer 2 Channel 1). Used for timer input capture. 28 PD8 T2_CH2 (Timer 2 Channel 2). Used for timer input capture. 29 PD9 T2_CH3 (Timer 2 Channel 3). Used for timer input capture. 30 PD10 T2_CH4 (Timer 2 Channel 4). Used for timer input capture. 31 PE0 ADC1_IN0 (Analog Input Channel 0 for ADC1). Used for analog-to-digital conversion. 32 PE1 ADC1_IN1 (Analog Input Channel 1 for ADC1). Used for analog-to-digital conversion. 33 PE2 ADC1_IN2 (Analog Input Channel 2 for ADC1). Used for analog-to-digital conversion. 34 PE3 ADC1_IN3 (Analog Input Channel 3 for ADC1). Used for analog-to-digital conversion. 35 PE4 ADC1_IN4 (Analog Input Channel 4 for ADC1). Used for analog-to-digital conversion. 36 PE5 ADC1_IN5 (Analog Input Channel 5 for ADC1). Used for analog-to-digital conversion. 37 PE6 ADC1_IN6 (Analog Input Channel 6 for ADC1). Used for analog-to-digital conversion. 38 PE7 ADC1_IN7 (Analog Input Channel 7 for ADC1). Used for analog-to-digital conversion. 39 PE8 ADC1_IN8 (Analog Input Channel 8 for ADC1). Used for analog-to-digital conversion. 40 PE9 ADC1_IN9 (Analog Input Channel 9 for ADC1). Used for analog-to-digital conversion. 41 PE10 ADC1_IN10 (Analog Input Channel 10 for ADC1). Used for analog-to-digital conversion. 42 PE11 ADC1_IN11 (Analog Input Channel 11 for ADC1). Used for analog-to-digital conversion. 43 PE12 ADC1_IN12 (Analog Input Channel 12 for ADC1). Used for analog-to-digital conversion. 44 PE13 ADC1_IN13 (Analog Input Channel 13 for ADC1). Used for analog-to-digital conversion. 45 PE14 ADC1_IN14 (Analog Input Channel 14 for ADC1). Used for analog-to-digital conversion. 46 PE15 ADC1_IN15 (Analog Input Channel 15 for ADC1). Used for analog-to-digital conversion. 47 PF0 T3_CH1 (Timer 3 Channel 1). Used for timer input capture. 48 PF1 T3_CH2 (Timer 3 Channel 2). Used for timer input capture. 49 PF2 T3_CH3 (Timer 3 Channel 3). Used for timer input capture. 50 PF3 T3_CH4 (Timer 3 Channel 4). Used for timer input capture. 51 PF4 I2S_CK (I2S Clock). Used for I2S audio interface clock signal. 52 PF5 I2S_SD (I2S Serial Data). Used for I2S audio interface data signal. 53 PF6 I2S_WS (I2S Word Select). Used for I2S audio interface word select signal. 54 PF7 I2S_MCK (I2S Master Clock). Used for I2S audio interface master clock signal. 55 PF8 T4_CH1 (Timer 4 Channel 1). Used for timer input capture. 56 PF9 T4_CH2 (Timer 4 Channel 2). Used for timer input capture. 57 PF10 T4_CH3 (Timer 4 Channel 3). Used for timer input capture. 58 PF11 T4_CH4 (Timer 4 Channel 4). Used for timer input capture. 59 PG0 T5_CH1 (Timer 5 Channel 1). Used for timer input capture. 60 PG1 T5_CH2 (Timer 5 Channel 2). Used for timer input capture. 61 PG2 T5_CH3 (Timer 5 Channel 3). Used for timer input capture. 62 PG3 T5_CH4 (Timer 5 Channel 4). Used for timer input capture. 63 PG4 USART4_TX (USART4 Transmit). Used for serial communication transmit. 64 PG5 USART4_RX (USART4 Receive). Used for serial communication receive. 65 PG6 T6_CH1 (Timer 6 Channel 1). Used for timer input capture. 66 PG7 T6_CH2 (Timer 6 Channel 2). Used for timer input capture. 67 PG8 T6_CH3 (Timer 6 Channel 3). Used for timer input capture. 68 PG9 T6_CH4 (Timer 6 Channel 4). Used for timer input capture. 69 PH0 T7_CH1 (Timer 7 Channel 1). Used for timer input capture. 70 PH1 T7_CH2 (Timer 7 Channel 2). Used for timer input capture. 71 PH2 T7_CH3 (Timer 7 Channel 3). Used for timer input capture. 72 PH3 T7_CH4 (Timer 7 Channel 4). Used for timer input capture. 73 PH4 USART5_TX (USART5 Transmit). Used for serial communication transmit. 74 PH5 USART5_RX (USART5 Receive). Used for serial communication receive. 75 PH6 T8_CH1 (Timer 8 Channel 1). Used for timer input capture. 76 PH7 T8_CH2 (Timer 8 Channel 2). Used for timer input capture. 77 PH8 T8_CH3 (Timer 8 Channel 3). Used for timer input capture. 78 PH9 T8_CH4 (Timer 8 Channel 4). Used for timer input capture. 79 PJ0 T9_CH1 (Timer 9 Channel 1). Used for timer input capture. 80 PJ1 T9_CH2 (Timer 9 Channel 2). Used for timer input capture. 81 PJ2 T9_CH3 (Timer 9 Channel 3). Used for timer input capture. 82 PJ3 T9_CH4 (Timer 9 Channel 4). Used for timer input capture. 83 PJ4 USART6_TX (USART6 Transmit). Used for serial communication transmit. 84 PJ5 USART6_RX (USART6 Receive). Used for serial communication receive. 85 PJ6 T10_CH1 (Timer 10 Channel 1). Used for timer input capture. 86 PJ7 T10_CH2 (Timer 10 Channel 2). Used for timer input capture. 87 PJ8 T10_CH3 (Timer 10 Channel 3). Used for timer input capture. 88 PJ9 T10_CH4 (Timer 10 Channel 4). Used for timer input capture. 89 PK0 T11_CH1 (Timer 11 Channel 1). Used for timer input capture. 90 PK1 T11_CH2 (Timer 11 Channel 2). Used for timer input capture. 91 PK2 T11_CH3 (Timer 11 Channel 3). Used for timer input capture. 92 PK3 T11_CH4 (Timer 11 Channel 4). Used for timer input capture. 93 PK4 USART7_TX (USART7 Transmit). Used for serial communication transmit. 94 PK5 USART7_RX (USART7 Receive). Used for serial communication receive. 95 PK6 T12_CH1 (Timer 12 Channel 1). Used for timer input capture. 96 PK7 T12_CH2 (Timer 12 Channel 2). Used for timer input capture. 97 PK8 T12_CH3 (Timer 12 Channel 3). Used for timer input capture. 98 PK9 T12_CH4 (Timer 12 Channel 4). Used for timer input capture. 99 PK10 T13_CH1 (Timer 13 Channel 1). Used for timer input capture. 100 PK11 T13_CH2 (Timer 13 Channel 2). Used for timer input capture.

20 FAQ (Frequently Asked Questions)

What is the STM32G431KBU6 microcontroller's package type? The STM32G431KBU6 uses the LQFP100 (Low-profile Quad Flat Package) package with 100 pins. What are the primary functions of the PA13 and PA14 pins? PA13 and PA14 are used for Serial Wire Debug (SWDIO and SWCLK) for programming and debugging. How many GPIOs does the STM32G431KBU6 have? It has up to 79 GPIO pins depending on the configuration. What is the function of the PA15 pin? PA15 is used as JTDI, which is part of the JTAG interface for debugging. What is the function of the PB3 and PB4 pins? PB3 and PB4 are used for USART2TX (transmit) and USART2RX (receive) respectively. What is the maximum clock speed of the STM32G431KBU6? The maximum clock speed is 170 MHz. How many ADC channels are available on this model? The STM32G431KBU6 has up to 16 ADC channels. What communication protocols does the STM32G431KBU6 support? It supports USART, SPI, I2C, and CAN protocols. Can I use this microcontroller for motor control applications? Yes, the STM32G431KBU6 has integrated features like PWM outputs and advanced timers suited for motor control applications.

How do I configure the pins for external interrupts?

You can configure any GPIO pin to serve as an external interrupt source through the STM32 configuration tools (like STM32CubeMX).

Does the STM32G431KBU6 support USB?

Yes, it has USB 2.0 FS support for device or host functions.

How much flash Memory is available?

The STM32G431KBU6 has 512KB of flash memory.

What is the power supply voltage for the STM32G431KBU6?

The operating voltage is from 2.7V to 3.6V.

Does this model support DMA?

Yes, the STM32G431KBU6 has DMA (Direct Memory Access ) support for efficient data transfer.

What are the key features of the timers on this microcontroller?

The microcontroller includes 16-bit timers with up to 4 channels, suitable for PWM, input capture, and output compare functions.

Can the STM32G431KBU6 be used in battery-operated applications?

Yes, it includes low-power modes and is suitable for battery-operated applications.

What development tools are recommended for programming the STM32G431KBU6?

Recommended tools include STM32CubeIDE, Keil, and IAR Embedded Workbench.

How can I configure the I2C communication on this microcontroller?

I2C pins like PB8 (SCL) and PB9 (SDA) can be configured through STM32CubeMX.

Does the STM32G431KBU6 have a built-in DAC?

Yes, it features a 12-bit DAC.

Is there support for external memory in STM32G431KBU6?

Yes, it supports external memory via its FSMC interface for accessing external SRAM, NOR/NAND flash memory.