The PCF8563 can handle a maximum clock frequency of 32.768 kHz, which is the typical frequency for a quartz crystal oscillator.
The PCF8563 has a built-in battery switchover circuit that automatically switches to the backup battery during power failure, ensuring continuous operation of the RTC.
The PCF8563's internal oscillator has an accuracy of ±10 ppm (parts per million) over the operating temperature range of -40°C to 85°C.
Yes, the PCF8563 is designed for use in battery-powered devices and has a low current consumption of 0.5 μA (typical) in battery-backed mode.
The PCF8563 automatically corrects for leap years, taking into account the extra day in February for years that are divisible by 4.
PCF8563TS/4,118 datasheet
by NXP Semiconductors
