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PCF8563 PCF8563T 8563 IIC I2C Real Time Clock RTC Module


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Real time clock module based on the NXP PCF8563T a programmable, I2C communicating up to 400KHz / 400Kb/S, high precision real time clock chipset. It offers multiple functions such as external programmable clock output, alarm, timer, it features and external quartz and a backup battery. More steady and precise than DS1302 or DS1307


  • The PCF8563 RTC Board provides the real-time clock/calendar function, which can be driven by a battery on board and works independently even when the MCU is turned off.
  • Low-cost, extremely accurate I2C real-time clock (RTC)
  • More steady and precise than DS1302 or DS1307
  • Support I2C bus cascade (by pin, row seat docking method, which can use multiple I2C module)
  • Wide voltage range: 1.0-5.5V
  • Typical value: 0.25uA
  • Output frequency: 32.768KHz, 1024Hz, 32Hz, 1Hz
  • 4 kinds of real-time clock/calendar functions

Package includes:

  • 1x PCF8563 RTC Board
  • 1x Pin header

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