PCF8566T datasheet by Philips Semiconductors

PCF8566T Frequently Asked Questions (FAQs)

• What is the maximum clock frequency that the PCF8566T can handle?
  The PCF8566T can handle a maximum clock frequency of 32.768 kHz, which is the typical frequency used for real-time clock applications.
• How does the PCF8566T handle battery switchover during power failure?
  The PCF8566T has a built-in battery switchover circuit that automatically switches to the backup battery during power failure, ensuring that the clock continues to run and retain its data.
• What is the accuracy of the internal oscillator in the PCF8566T?
  The internal oscillator in the PCF8566T has an accuracy of ±10% at 25°C, which is sufficient for most real-time clock applications.
• Can the PCF8566T be used in low-power applications?
  Yes, the PCF8566T is designed for low-power applications and has a typical current consumption of 0.5 μA in standby mode, making it suitable for battery-powered devices.
• How does the PCF8566T handle clock calibration?
  The PCF8566T has a built-in clock calibration circuit that allows for adjustment of the clock frequency to compensate for deviations from the nominal frequency.