The maximum clock frequency for the STM8AF6286UDX is 24 MHz, but it can be overclocked up to 32 MHz with some limitations. However, it's recommended to follow the clock frequency specified in the datasheet to ensure reliable operation.
The watchdog timer on the STM8AF6286UDX can be configured using the WWDG_CR register. You need to set the WWDG_CR[7:0] bits to select the watchdog timer prescaler and the WWDG_CR[15:8] bits to set the watchdog timer window. Refer to the STM8AF62xx datasheet for more information.
Yes, the STM8AF6286UDX can operate with a 3.3V power supply. The device is specified to operate from 2.95V to 3.63V, making it suitable for 3.3V systems. However, ensure that the voltage regulator and power supply can provide a stable 3.3V output.
Implementing a bootloader on the STM8AF6286UDX requires writing a custom firmware that can update the device's flash memory. You can use the STM8 bootloader development kit and the STM8CubeMX tool to create a custom bootloader. Refer to the STM8 bootloader application note for more information.
The maximum amount of current that can be sourced or sunk by the GPIO pins on the STM8AF6286UDX is 20mA per pin. However, the total current sourced or sunk by all GPIO pins should not exceed 100mA to prevent overheating and ensure reliable operation.