PCA9512AD datasheet by NXP Semiconductors

PCA9512AD Frequently Asked Questions (FAQs)

• What is the maximum frequency of the I2C bus that PCA9512AD can support?
  The PCA9512AD can support I2C bus frequencies up to 1 MHz, but it's recommended to limit the frequency to 400 kHz for reliable operation.
• Can PCA9512AD be used as a level shifter for other protocols besides I2C?
  No, PCA9512AD is specifically designed for I2C bus level shifting and is not recommended for use with other protocols.
• How do I ensure that the PCA9512AD is properly powered and biased?
  Make sure to connect VCC to a stable 3.3V or 5V power supply, and connect VREF to a stable reference voltage (usually VCC). Also, ensure that the input and output voltage levels are within the recommended operating range.
• What is the maximum capacitance that can be driven by the PCA9512AD?
  The PCA9512AD can drive capacitive loads up to 400 pF, but it's recommended to limit the capacitance to 100 pF for reliable operation.
• Can PCA9512AD be used in a multi-master I2C bus configuration?
  Yes, PCA9512AD can be used in a multi-master I2C bus configuration, but it's essential to ensure that the masters are properly synchronized and that the bus is not overloaded.