STM32F405RGT6 Detailed explanation of pin function specifications and circuit principle instructions

The "STM32F405RGT6" is a microcontroller from STMicroelectronics, which is a well-known global manufacturer of semiconductors. The STM32F405RGT6 belongs to the STM32F4 series and uses the ARM Cortex-M4 core. It is a powerful microcontroller with multiple features, such as high-speed GPIO pins, ADCs, DACs, and communication peripherals (I2C, SPI, UART, etc.).

Here’s the detailed breakdown of your requested information:

1. Package Type and Pin Count

The STM32F405RGT6 is available in a LQFP (Low-profile Quad Flat Package) with 100 pins. The LQFP package type is a common surface-mount technology, which ensures easy installation on PCBs.

2. Pin Function Specifications

The STM32F405RGT6 has 100 pins in total, and each of these pins has specific functionalities. Below is the detailed explanation of the pin functions.

Pin Number Pin Name Pin Function 1 PA13 SWDIO (Serial Wire Debug I/O) 2 PA14 SWCLK (Serial Wire Clock ) 3 PA15 JTDI (JTAG Test Data Input) 4 PB3 JTDO (JTAG Test Data Output) 5 PB4 JTRST (JTAG Reset) 6 PB5 SPI1_SCK (SPI Clock) 7 PB6 SPI1_MISO (SPI Master In Slave Out) 8 PB7 SPI1_MOSI (SPI Master Out Slave In) 9 PB8 I2C1_SCL (I2C Clock Line) 10 PB9 I2C1_SDA (I2C Data Line) 11 PC0 TDO (JTAG Test Data Output) 12 PC1 TDI (JTAG Test Data Input) 13 PC2 SPI2_SCK (SPI Clock) 14 PC3 SPI2_MISO (SPI Master In Slave Out) 15 PC4 SPI2_MOSI (SPI Master Out Slave In) 16 PC5 I2C2_SCL (I2C Clock Line) 17 PC6 I2C2_SDA (I2C Data Line) 18 PD0 USART2_RX (USART Receive) 19 PD1 USART2_TX (USART Transmit) 20 PD2 USART3_RX (USART Receive) 21 PD3 USART3_TX (USART Transmit) 22 PD4 SPI3_SCK (SPI Clock) 23 PD5 SPI3_MISO (SPI Master In Slave Out) 24 PD6 SPI3_MOSI (SPI Master Out Slave In) 25 PD7 I2C3_SCL (I2C Clock Line) 26 PD8 I2C3_SDA (I2C Data Line) 27 PD9 CAN1_RX (CAN Bus Receive) 28 PD10 CAN1_TX (CAN Bus Transmit) 29 PE0 USBOTGFS_ID (USB OTG ID Pin) 30 PE1 USBOTGFS_DM (USB Data Minus) 31 PE2 USBOTGFS_DP (USB Data Plus) 32 PE3 USBOTGFS_VBUS (USB OTG VBUS Pin) 33 PE4 USBOTGFS_OC (USB Overcurrent Pin) 34 PE5 GPIO (General Purpose I/O) 35 PE6 GPIO (General Purpose I/O) 36 PE7 GPIO (General Purpose I/O) 37 PE8 GPIO (General Purpose I/O) 38 PE9 GPIO (General Purpose I/O) 39 PE10 GPIO (General Purpose I/O) 40 PE11 GPIO (General Purpose I/O) 41 PE12 GPIO (General Purpose I/O) 42 PE13 GPIO (General Purpose I/O) 43 PE14 GPIO (General Purpose I/O) 44 PE15 GPIO (General Purpose I/O) 45 PF0 ADC1_IN0 (Analog Input 0) 46 PF1 ADC1_IN1 (Analog Input 1) 47 PF2 ADC1_IN2 (Analog Input 2) 48 PF3 ADC1_IN3 (Analog Input 3) 49 PF4 ADC1_IN4 (Analog Input 4) 50 PF5 ADC1_IN5 (Analog Input 5) 51 PF6 ADC1_IN6 (Analog Input 6) 52 PF7 ADC1_IN7 (Analog Input 7) 53 PF8 ADC1_IN8 (Analog Input 8) 54 PF9 ADC1_IN9 (Analog Input 9) 55 PF10 DAC1_OUT (DAC Output) 56 PF11 DAC2_OUT (DAC Output) 57 PF12 TIM1_CH1N (Timer Channel 1 Negative) 58 PF13 TIM1_CH2N (Timer Channel 2 Negative) 59 PF14 TIM1_CH3N (Timer Channel 3 Negative) 60 PF15 TIM1_CH4N (Timer Channel 4 Negative) 61 PG0 TIM2_CH1 (Timer Channel 1) 62 PG1 TIM2_CH2 (Timer Channel 2) 63 PG2 TIM2_CH3 (Timer Channel 3) 64 PG3 TIM2_CH4 (Timer Channel 4) 65 PG4 I2S3_MCLK (I2S Master Clock) 66 PG5 I2S3_SD (I2S Serial Data) 67 PG6 I2S3_WS (I2S Word Select) 68 PG7 I2S3_SCK (I2S Serial Clock) 69 PG8 SPI4_SCK (SPI Clock) 70 PG9 SPI4_MISO (SPI Master In Slave Out) 71 PG10 SPI4_MOSI (SPI Master Out Slave In) 72 PG11 CAN2_RX (CAN Bus Receive) 73 PG12 CAN2_TX (CAN Bus Transmit) 74 PG13 TIM4_CH1 (Timer Channel 1) 75 PG14 TIM4_CH2 (Timer Channel 2) 76 PG15 TIM4_CH3 (Timer Channel 3) 77 PH0 USBOTGHS_ID (USB OTG High-Speed ID Pin) 78 PH1 USBOTGHS_DM (USB Data Minus) 79 PH2 USBOTGHS_DP (USB Data Plus) 80 PH3 USBOTGHS_VBUS (USB OTG VBUS Pin) 81 PH4 USBOTGHS_OC (USB Overcurrent Pin) 82 PH5 I2S2_MCLK (I2S Master Clock) 83 PH6 I2S2_SD (I2S Serial Data) 84 PH7 I2S2_WS (I2S Word Select) 85 PH8 I2S2_SCK (I2S Serial Clock) 86 PH9 SPI5_SCK (SPI Clock) 87 PH10 SPI5_MISO (SPI Master In Slave Out) 88 PH11 SPI5_MOSI (SPI Master Out Slave In) 89 PH12 TIM5_CH1 (Timer Channel 1) 90 PH13 TIM5_CH2 (Timer Channel 2) 91 PH14 TIM5_CH3 (Timer Channel 3) 92 PH15 TIM5_CH4 (Timer Channel 4) 93 PI0 GPIO (General Purpose I/O) 94 PI1 GPIO (General Purpose I/O) 95 PI2 GPIO (General Purpose I/O) 96 PI3 GPIO (General Purpose I/O) 97 PI4 GPIO (General Purpose I/O) 98 PI5 GPIO (General Purpose I/O) 99 PI6 GPIO (General Purpose I/O) 100 PI7 GPIO (General Purpose I/O)

3. Common FAQs About STM32F405RGT6 Pin Functions

Q1: What is the SWDIO pin used for in STM32F405RGT6? A1: SWDIO (Pin PA13) is used for the Serial Wire Debug I/O for debugging the microcontroller. Q2: Can I use SPI1MISO and SPI1MOSI simultaneously for communication? A2: Yes, SPI1MISO (PB6) and SPI1MOSI (PB7) can be used simultaneously for full-duplex communication. Q3: How do I access the ADC1_IN0 pin for analog readings? A3: The ADC1_IN0 pin (PF0) is used as an analog input for reading sensor data through the ADC peripheral. Q4: What is the maximum voltage for the I2C_SDA pins? A4: The maximum voltage on the I2C_SDA pin (PB9) is typically 3.3V for proper functionality. Q5: How can I use the USART2RX and USART2TX for serial communication? A5: You can connect USART2RX (PD0) and USART2TX (PD1) to external devices to send and receive serial data.

This is an example of the first few of 100 pins, with detailed explanations for their functionality. For a complete guide, you'd need to continue in a similar format for each of the 100 pins.

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