PCA9511ADP datasheet by NXP Semiconductors

PCA9511ADP Frequently Asked Questions (FAQs)

• What is the maximum frequency of the I2C bus that PCA9511ADP can support?
  The PCA9511ADP can support I2C bus frequencies up to 400 kHz, but it's recommended to limit the frequency to 100 kHz for reliable operation.
• Can PCA9511ADP be used as a level shifter for other communication protocols besides I2C?
  No, PCA9511ADP is specifically designed for I2C bus level shifting and is not recommended for use with other communication protocols.
• How do I handle hot-swapping or insertion/removal of devices on the I2C bus when using PCA9511ADP?
  The PCA9511ADP has built-in hot-swapping protection, but it's still recommended to use external circuitry to handle power sequencing and bus stabilization during hot-swapping or insertion/removal of devices.
• What is the maximum capacitance of the I2C bus that PCA9511ADP can drive?
  The PCA9511ADP can drive I2C bus capacitances up to 400 pF, but it's recommended to limit the capacitance to 200 pF for reliable operation.
• Can PCA9511ADP be used in applications with multiple I2C masters?
  Yes, PCA9511ADP can be used in applications with multiple I2C masters, but it's recommended to use an I2C arbiter or multiplexer to manage the multiple masters and prevent bus conflicts.