MC9S08PA4VWJ datasheet by Freescale Semiconductor

MC9S08PA4VWJ Frequently Asked Questions (FAQs)

• What is the maximum clock frequency of the MC9S08PA4VWJ?
  The maximum clock frequency of the MC9S08PA4VWJ is 20 MHz, but it can be overclocked to 24 MHz with reduced voltage and temperature range.
• How do I configure the internal oscillator on the MC9S08PA4VWJ?
  The internal oscillator on the MC9S08PA4VWJ can be configured using the OSCCLK and OSCST registers. The oscillator frequency can be trimmed using the TRIM registers.
• What is the purpose of the VLLS (Very Low Leakage Stop) mode on the MC9S08PA4VWJ?
  The VLLS mode on the MC9S08PA4VWJ is a low-power mode that reduces power consumption to a minimum, making it suitable for battery-powered applications. In VLLS mode, the CPU, peripherals, and oscillators are disabled, and the device can wake up on an interrupt or reset.
• How do I use the ADC on the MC9S08PA4VWJ?
  The ADC on the MC9S08PA4VWJ is a 12-bit successive approximation ADC. It can be configured using the ADCSC1 and ADCSC2 registers. The ADC can operate in single-shot or continuous conversion modes, and can be triggered by a software command or an external signal.
• What is the maximum current that can be sourced or sunk by the GPIO pins on the MC9S08PA4VWJ?
  The maximum current that can be sourced or sunk by the GPIO pins on the MC9S08PA4VWJ is 25 mA. However, the total current sourced or sunk by all GPIO pins should not exceed 100 mA.