STM32G473MCT3 - STMicroelectronics

STM32G473MCT3 Frequently Asked Questions (FAQs)

• What is the maximum clock frequency that can be achieved with the internal oscillator?
  The internal oscillator (HSI) can be clocked up to 64 MHz, but the maximum frequency that can be achieved depends on the voltage and temperature range. Typically, it can reach up to 48 MHz at room temperature and 3.3V supply voltage.
• How do I configure the clock tree to achieve the highest performance?
  To achieve the highest performance, you should use the external clock source (HSE) and configure the PLL to multiply the clock frequency. You can use the STM32CubeMX tool to generate the clock configuration code for your specific use case.
• What is the maximum amount of current that can be sourced or sunk by the GPIO pins?
  The maximum current that can be sourced or sunk by the GPIO pins is 20 mA per pin, with a total current limit of 100 mA for all GPIO pins combined. However, it's recommended to keep the current below 10 mA per pin to ensure reliable operation.
• How do I implement a low-power mode to reduce power consumption?
  The STM32G473MCT3 has several low-power modes, including Sleep, Stop, and Standby. You can use the HAL library to implement these modes and reduce power consumption. Additionally, you can use the Low Power Timer (LPTIM) to wake up the device from low-power modes.
• What is the maximum data transfer rate for the USB interface?
  The STM32G473MCT3 has a Full-Speed USB interface that supports data transfer rates up to 12 Mbps.