PCA9542AD,118 datasheet by NXP Semiconductors

PCA9542AD,118 Frequently Asked Questions (FAQs)

• What is the maximum frequency of the I2C bus that the PCA9542AD can support?
  The PCA9542AD can support I2C bus frequencies up to 400 kHz.
• Can the PCA9542AD be used to switch between multiple I2C buses with different voltage levels?
  Yes, the PCA9542AD can be used to switch between multiple I2C buses with different voltage levels, as long as the voltage levels are within the specified range of 1.8 V to 5.5 V.
• How do I ensure that the PCA9542AD is properly powered down when not in use?
  To ensure that the PCA9542AD is properly powered down when not in use, the EN pin should be pulled low, and the VCC pin should be connected to a power source that can be switched off when not in use.
• Can the PCA9542AD be used in a hot-swappable application?
  Yes, the PCA9542AD can be used in a hot-swappable application, as it has built-in protection against voltage and current surges during hot-swapping.
• What is the maximum capacitance that can be driven by the PCA9542AD?
  The PCA9542AD can drive capacitive loads up to 400 pF.