PCF8566T/1,118 datasheet by NXP Semiconductors

PCF8566T/1,118 Frequently Asked Questions (FAQs)

• What is the maximum clock frequency that the PCF8566T/1,118 can handle?
  The PCF8566T/1,118 can handle a maximum clock frequency of 32.768 kHz, which is the typical frequency for a quartz crystal oscillator.
• How does the PCF8566T/1,118 handle battery backup?
  The PCF8566T/1,118 has a built-in battery backup switch that automatically switches to the battery supply when the main power supply fails, ensuring that the RTC continues to run.
• What is the accuracy of the PCF8566T/1,118's RTC?
  The PCF8566T/1,118's RTC has an accuracy of ±2 minutes per year at 25°C, making it suitable for most applications that require a high degree of timekeeping accuracy.
• Can the PCF8566T/1,118 be used in low-power applications?
  Yes, the PCF8566T/1,118 is designed for low-power applications, with a typical current consumption of 0.5 μA in battery-backed mode, making it suitable for battery-powered devices.
• How does the PCF8566T/1,118 handle alarms and interrupts?
  The PCF8566T/1,118 has a built-in alarm function that can generate an interrupt when a specific time or date is reached, allowing the system to take action or wake up from a low-power state.