PCF8545ATT/AJ datasheet by NXP Semiconductors

PCF8545ATT/AJ Frequently Asked Questions (FAQs)

• What is the recommended operating voltage range for PCF8545ATT/AJ?
  The recommended operating voltage range for PCF8545ATT/AJ is 2.5V to 5.5V.
• How do I configure the I2C bus speed for PCF8545ATT/AJ?
  The I2C bus speed for PCF8545ATT/AJ 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 current consumption of PCF8545ATT/AJ?
  The maximum current consumption of PCF8545ATT/AJ is 10 mA, but it can be as low as 1 μA in standby mode.
• How do I reset the PCF8545ATT/AJ?
  The PCF8545ATT/AJ can be reset by pulling the RESET pin low for at least 1 ms.
• What is the purpose of the INT pin on PCF8545ATT/AJ?
  The INT pin on PCF8545ATT/AJ is an interrupt output that can be used to signal events such as alarm matches or timer overflows.