PCA9517AD datasheet by NXP Semiconductors

PCA9517AD Frequently Asked Questions (FAQs)

• What is the maximum frequency of the I2C bus that PCA9517AD can support?
  The PCA9517AD can support I2C bus frequencies up to 1 MHz, but it's recommended to operate at 400 kHz or lower for reliable operation.
• Can PCA9517AD be used as a level shifter for other protocols besides I2C?
  No, PCA9517AD is specifically designed for I2C bus level shifting and is not recommended for use with other protocols.
• How do I ensure that the PCA9517AD 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 voltage on the VREF pin is within the recommended range (0.8V to 5.5V) to set the correct logic level threshold.
• What is the maximum capacitance that can be driven by the PCA9517AD?
  The PCA9517AD can drive capacitive loads up to 400 pF, but it's recommended to keep the load capacitance as low as possible to ensure reliable operation.
• Can PCA9517AD be used in a hot-swappable application?
  Yes, PCA9517AD is designed to support hot-swapping, but it's essential to ensure that the power supply to the device is stable and well-regulated during the hot-swap event.