PCA9516D datasheet by Philips Semiconductors

PCA9516D Frequently Asked Questions (FAQs)

• What is the maximum frequency of the I2C bus that PCA9516D can support?
  The PCA9516D can support I2C bus frequencies up to 400 kHz, but it's recommended to operate at 100 kHz or 400 kHz to ensure compatibility with most I2C devices.
• Can PCA9516D be used as a level shifter for other communication protocols besides I2C?
  No, PCA9516D is specifically designed for I2C bus level shifting and is not suitable for other communication protocols like SPI, UART, or GPIO.
• How do I ensure that the PCA9516D is properly powered and biased?
  Make sure to connect VCC to a stable 3.3V or 5V power supply, and connect GND to a solid ground plane. Also, ensure that the input and output sides of the device are properly biased to the correct voltage levels.
• What is the maximum capacitance that PCA9516D can drive on the I2C bus?
  The PCA9516D can drive up to 400 pF of capacitance on the I2C bus, but it's recommended to keep the total bus capacitance below 200 pF to ensure reliable operation.
• Can PCA9516D be used in a hot-swappable I2C bus application?
  Yes, PCA9516D is designed to support hot-swapping of I2C devices, but ensure that the power supply to the device is properly sequenced and that the I2C bus is properly terminated to prevent bus contention.