PCA9548AD,112 datasheet by NXP Semiconductors

PCA9548AD,112 Frequently Asked Questions (FAQs)

• What is the maximum frequency of the I2C bus that PCA9548AD,112 can support?
  The PCA9548AD,112 can support I2C bus frequencies up to 400 kHz.
• Can I use PCA9548AD,112 as a level shifter between 3.3V and 1.8V I2C buses?
  Yes, the PCA9548AD,112 can be used as a level shifter between 3.3V and 1.8V I2C buses, but it's essential to ensure that the voltage levels are within the recommended operating conditions.
• How do I configure the PCA9548AD,112 to work in dual-bus mode?
  To configure the PCA9548AD,112 in dual-bus mode, you need to connect the SCL/SDA pins of each bus to the corresponding pins on the PCA9548AD,112, and then use the EN pins to enable or disable each bus.
• What is the maximum capacitance that PCA9548AD,112 can drive on the I2C bus?
  The PCA9548AD,112 can drive up to 400 pF of capacitance on the I2C bus, but it's recommended to keep the capacitance as low as possible to ensure reliable operation.
• Can I use PCA9548AD,112 to isolate two I2C buses with different voltage levels?
  Yes, the PCA9548AD,112 can be used to isolate two I2C buses with different voltage levels, but it's essential to ensure that the voltage levels are within the recommended operating conditions and that the isolation requirements are met.