PCA9513AD datasheet by NXP Semiconductors

PCA9513AD Frequently Asked Questions (FAQs)

• What is the maximum frequency of the I2C bus that PCA9513AD can support?
  The PCA9513AD can support I2C bus frequencies up to 1 MHz, but it's recommended to operate at 400 kHz or lower for reliable operation.
• Can I use PCA9513AD as a level shifter for other communication protocols besides I2C?
  While PCA9513AD is primarily designed for I2C bus level shifting, it can also be used for other communication protocols such as SPI, UART, or GPIO, but it's essential to ensure the protocol's voltage and current requirements are met.
• How do I ensure reliable operation of PCA9513AD in noisy environments?
  To ensure reliable operation in noisy environments, it's recommended to use a bypass capacitor (e.g., 100 nF) between VCC and GND, and to keep the PCB layout clean and well-decoupled. Additionally, consider using a shielded cable or twisted pair wiring for the I2C bus.
• What is the maximum voltage difference that PCA9513AD can handle between the two sides of the level shifter?
  The PCA9513AD can handle a maximum voltage difference of 5.5 V between the two sides of the level shifter. Exceeding this limit may damage the device.
• Can I use PCA9513AD to level shift between two I2C buses with different clock frequencies?
  Yes, PCA9513AD can be used to level shift between two I2C buses with different clock frequencies, but it's essential to ensure that the clock frequency of the target bus is within the device's supported frequency range (up to 1 MHz).