PCF8533U/2/F2,026 datasheet by NXP Semiconductors

PCF8533U/2/F2,026 Frequently Asked Questions (FAQs)

• What is the recommended operating voltage range for PCF8533U/2/F2,026?
  The recommended operating voltage range for PCF8533U/2/F2,026 is 2.5V to 5.5V.
• How do I configure the I2C bus speed for PCF8533U/2/F2,026?
  The I2C bus speed for PCF8533U/2/F2,026 can be configured by setting the SCL clock frequency, which can be up to 400 kHz in standard mode and up to 1 MHz in fast mode.
• What is the maximum capacitance value that can be connected to the PCF8533U/2/F2,026's XIN pin?
  The maximum capacitance value that can be connected to the PCF8533U/2/F2,026's XIN pin is 20 pF.
• How do I reset the PCF8533U/2/F2,026?
  The PCF8533U/2/F2,026 can be reset by pulling the RESET pin low for at least 1 ms.
• What is the purpose of the PCF8533U/2/F2,026's INT pin?
  The INT pin is an interrupt output that can be used to signal to the microcontroller that a RTC alarm has occurred or that the oscillator has failed.