STM32L562VET3 - STMicroelectronics

STM32L562VET3 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 depends on the voltage range and temperature. For example, at 3.3V and 25°C, the maximum frequency is around 48 MHz.
• How do I configure the ADC to achieve the highest accuracy?
  To achieve the highest accuracy, the ADC should be configured to use the internal voltage reference (VREFINT), and the sampling time should be set to the maximum value (239.5 cycles). Additionally, the ADC should be calibrated before use.
• What is the maximum current that can be sourced/sunk by the GPIO pins?
  The maximum current that can be sourced by the GPIO pins is 20 mA, and the maximum current that can be sunk is 25 mA. However, the total current sourced/sunk by all GPIO pins should not exceed 150 mA.
• How do I use the low-power modes to minimize power consumption?
  The STM32L562VET6 has several low-power modes, including Sleep, Stop, and Standby. To use these modes, the engineer should configure the power mode using the PWR registers, and then use the WFI (Wait For Interrupt) or WFE (Wait For Event) instructions to enter the desired low-power mode.
• What is the maximum data transfer rate of the USART?
  The maximum data transfer rate of the USART is 10.5 Mbps, but this depends on the clock frequency and the baud rate divider. The USART can also be used in asynchronous mode, which allows for higher data transfer rates.