The "STM32G474RET6" is part of the STM32 microcontroller family, which is produced by STMicroelectronics. It is a 32-bit ARM Cortex-M4 microcontroller, and its specific package is the LQFP-64, meaning it has 64 pins. However, the STM32G474RET6 model you're referring to is LQFP-64, not the 200-pin package that you may be thinking of.
Given the complexity and extensive number of details requested, here's a summary of the relevant pin functions. Below, I'll list the pinout details for the STM32G474RET6, including common FAQs about its pin functions. This description is as detailed as possible, but it will be trimmed for practicality due to space limitations. For a complete and fully accurate list of all pinout details, I'd suggest referring to the official STMicroelectronics datasheet or user manual, which will provide the entire description for every pin.
Pinout Description for STM32G474RET6 (LQFP-64 package)
The STM32G474RET6 microcontroller has 64 pins in its LQFP-64 package. The detailed function description for each pin is as follows:
Pin Pin Name Function 1 VSS Ground Pin 2 VDD Power Supply Pin (3.3V) 3 VDDA Analog Power Supply Pin 4 VSSA Ground Pin for Analog Part 5 BOOT0 Boot Configuration Pin (0 = Boot from Flash, 1 = Boot from System Memory ) 6 NRST Reset Pin 7 PA13 SWDIO (Serial Wire Debug I/O) 8 PA14 SWCLK (Serial Wire Clock ) 9 PA15 JTDI (JTAG Test Data Input) 10 PB3 JTDO (JTAG Test Data Output) 11 PB4 NJTRST (JTAG Test Reset) 12 PC0 Wakeup Pin for Low-Power Modes 13 PC1 ADC Channel 1 (Analog Input) 14 PC2 ADC Channel 2 (Analog Input) 15 PC3 ADC Channel 3 (Analog Input) 16 PC4 ADC Channel 4 (Analog Input) 17 PC5 ADC Channel 5 (Analog Input) 18 PC6 DAC Output (Analog Output) 19 PC7 DAC Output (Analog Output) 20 PC8 Timer 3 Channel 1 21 PC9 Timer 3 Channel 2 22 PD0 USART1 RX (Receiver) 23 PD1 USART1 TX (Transmitter) 24 PD2 I2C1 SCL (Clock Line) 25 PD3 I2C1 SDA (Data Line) 26 PD4 Timer 4 Channel 1 27 PD5 Timer 4 Channel 2 28 PD6 Timer 4 Channel 3 29 PD7 Timer 4 Channel 4 30 PE0 ADC Channel 10 (Analog Input) 31 PE1 ADC Channel 11 (Analog Input) 32 PE2 SPI1 SCK (Clock Line) 33 PE3 SPI1 MISO (Master In Slave Out) 34 PE4 SPI1 MOSI (Master Out Slave In) 35 PE5 SPI1 NSS (Slave Select) 36 PE6 Timer 12 Channel 1 37 PE7 Timer 12 Channel 2 38 PE8 I2C2 SCL (Clock Line) 39 PE9 I2C2 SDA (Data Line) 40 PF0 ADC Channel 12 (Analog Input) 41 PF1 ADC Channel 13 (Analog Input) 42 PF2 ADC Channel 14 (Analog Input) 43 PF3 ADC Channel 15 (Analog Input) 44 PF4 TIM1 Channel 1 45 PF5 TIM1 Channel 2 46 PF6 TIM1 Channel 3 47 PF7 TIM1 Channel 4 48 PF8 I2S1 Data Line 49 PF9 I2S1 Clock Line 50 PG0 ADC Channel 16 (Analog Input) 51 PG1 ADC Channel 17 (Analog Input) 52 PG2 SPI2 SCK (Clock Line) 53 PG3 SPI2 MISO (Master In Slave Out) 54 PG4 SPI2 MOSI (Master Out Slave In) 55 PG5 SPI2 NSS (Slave Select) 56 PG6 UART4 TX (Transmitter) 57 PG7 UART4 RX (Receiver) 58 PG8 Timer 5 Channel 1 59 PG9 Timer 5 Channel 2 60 PG10 Timer 5 Channel 3 61 PG11 Timer 5 Channel 4 62 PG12 USART2 RX (Receiver) 63 PG13 USART2 TX (Transmitter) 64 VSS Ground Pin20 FAQ on STM32G474RET6 Pin Functions
1. What is the purpose of the BOOT0 pin on the STM32G474RET6? The BOOT0 pin is used to select the boot source. If set to '1', the device boots from system memory; if '0', it boots from Flash memory.
2. Can I use the PA13 and PA14 pins for general I/O? PA13 and PA14 are primarily used for Serial Wire Debug (SWD) I/O, but they can be reconfigured for general-purpose I/O.
3. How do I configure the PA15 pin? PA15 is typically used as JTDI for JTAG debugging, but it can be reconfigured for alternate functions as well.
4. What does the NRST pin do? The NRST pin is the reset pin for the STM32G474RET6. It resets the entire microcontroller when triggered.
5. How many ADC channels does the STM32G474RET6 have? The STM32G474RET6 has 16 ADC channels spread across pins like PC0–PC5, PE0–PE1, PF0–PF3.
6. Is it possible to use the PC6 and PC7 pins for PWM output? Yes, PC6 and PC7 can be configured to output PWM signals using timers.
7. Can the PD0 and PD1 pins be used for UART communication? Yes, PD0 and PD1 are used for USART1 RX and TX respectively.
8. How do I connect I2C devices to the STM32G474RET6? I2C connections are typically made using pins like PD3 (SDA) and PD2 (SCL) for I2C1, or PE9 (SDA) and PE8 (SCL) for I2C2.
9. Are there digital-to-analog converters available? Yes, pins PC6 and PC7 can output analog signals from the DAC.
10. What are the key power pins for the STM32G474RET6? The VDD pin provides the power supply, and VSS is the ground. VDDA and VSSA are for the analog section.
11. Can the STM32G474RET6 work with SPI peripherals? Yes, SPI can be used via pins like PE2 (SCK), PE3 (MISO), PE4 (MOSI), and PE5 (NSS).
12. How can I use the STM32G474RET6 for CAN communication? The STM32G474RET6 includes pins that can be configured for CAN communication, such as PA11 and PA12.
13. Is there support for external interrupts? Yes, pins like PA0 and PA1 support external interrupts.
14. How can I use the STM32G474RET6 in low-power modes? The STM32G474RET6 has several low-power modes such as Sleep, Stop, and Standby, which can be controlled via software.
15. Can I debug the STM32G474RET6 using JTAG? Yes, JTAG debugging is supported via pins like PA15, PB3, and PB4.
16. What timer pins are available? The STM32G474RET6 has multiple timer channels available on pins such as PC8, PC9, PD4–PD7, PF4–PF7, PG8–PG11.
17. How many UART interface s are available? The STM32G474RET6 supports up to 4 UART interfaces, such as USART1, USART2, UART4, and UART5.
18. Can I use STM32G474RET6 for audio applications? Yes, pins like PF8 and PF9 are used for I2S communication, suitable for audio data transfer.
19. Are there any external memory interface options? The STM32G474RET6 supports external memory interfaces such as FSMC and QSPI.
20. What is the recommended voltage for the STM32G474RET6? The STM32G474RET6 operates at a voltage of 3.3V, with a tolerance of ±10%.
For the complete pinout and detailed datasheets, please refer to the official STMicroelectronics website or the STM32G474RET6 reference manual, which provides the most precise and complete documentation.
