PCF8563T/F4,112 datasheet by NXP Semiconductors

PCF8563T/F4,112 Frequently Asked Questions (FAQs)

• What is the maximum clock frequency that the PCF8563T/F4,112 can handle?
  The PCF8563T/F4,112 can handle a maximum clock frequency of 32.768 kHz, which is the typical frequency for a real-time clock (RTC) application.
• How does the PCF8563T/F4,112 handle battery backup?
  The PCF8563T/F4,112 has a built-in battery backup switch that automatically switches to the backup battery when the main power supply fails, ensuring that the RTC continues to run.
• What is the accuracy of the internal oscillator in the PCF8563T/F4,112?
  The internal oscillator in the PCF8563T/F4,112 has an accuracy of ±10% over the entire operating temperature range, making it suitable for most RTC applications.
• Can the PCF8563T/F4,112 be used in low-power applications?
  Yes, the PCF8563T/F4,112 is designed for low-power applications, with a typical current consumption of 0.5 μA in standby mode and 1.5 μA in active mode.
• How does the PCF8563T/F4,112 handle alarm and timer functions?
  The PCF8563T/F4,112 has a built-in alarm and timer function that can be programmed to generate interrupts or reset signals, allowing for flexible implementation of RTC-related functions.