PCA8546BTT/AJ datasheet by NXP Semiconductors

PCA8546BTT/AJ Frequently Asked Questions (FAQs)

• What is the recommended operating voltage range for PCA8546BTT/AJ?
  The recommended operating voltage range for PCA8546BTT/AJ is 1.65 V to 3.6 V, with a typical voltage of 1.8 V.
• How do I configure the PCA8546BTT/AJ for I2C or SPI interface?
  The PCA8546BTT/AJ can be configured for I2C or SPI interface by setting the appropriate pins (e.g., SCL/SDA for I2C or SCK/MOSI/MISO for SPI) and configuring the device's registers accordingly. Refer to the datasheet and application notes for specific configuration details.
• What is the maximum clock frequency supported by PCA8546BTT/AJ?
  The maximum clock frequency supported by PCA8546BTT/AJ is 400 kHz for I2C and 10 MHz for SPI.
• How do I handle the power-on reset (POR) and brown-out detection (BOD) features of PCA8546BTT/AJ?
  The PCA8546BTT/AJ has an internal POR and BOD circuitry. The POR ensures the device resets properly during power-up, while the BOD detects voltage drops and resets the device if the voltage falls below a certain threshold. No external components are required to handle these features.
• Can I use PCA8546BTT/AJ in a low-power or battery-powered application?
  Yes, the PCA8546BTT/AJ is suitable for low-power or battery-powered applications due to its low active current consumption (typically 1.5 μA) and low standby current consumption (typically 0.5 μA).