PCA9548ADB datasheet by Texas Instruments

PCA9548ADB Frequently Asked Questions (FAQs)

• What is the maximum frequency of the I2C bus that PCA9548ADB can support?
  The PCA9548ADB can support I2C bus frequencies up to 400 kHz, but it's recommended to limit it to 100 kHz for reliable operation.
• Can I use PCA9548ADB as a level shifter for I2C signals?
  Yes, the PCA9548ADB can be used as a level shifter for I2C signals, allowing you to interface devices with different voltage levels.
• How do I configure the PCA9548ADB to work in dual-bus mode?
  To configure the PCA9548ADB in dual-bus mode, you need to connect the EN pin to VCC, and then use the A0 and A1 pins to select one of the four possible bus configurations.
• What is the maximum capacitance that PCA9548ADB can drive on the I2C bus?
  The PCA9548ADB can drive up to 400 pF of capacitance on the I2C bus, but it's recommended to limit it to 200 pF for reliable operation.
• Can I use PCA9548ADB to connect multiple I2C masters to a single I2C bus?
  Yes, the PCA9548ADB can be used to connect multiple I2C masters to a single I2C bus, allowing you to create a multi-master I2C system.