TCA6408ZXYR datasheet by Texas Instruments

TCA6408ZXYR Frequently Asked Questions (FAQs)

• What is the maximum current rating for each output pin?
  The maximum current rating for each output pin is 25mA. However, it's recommended to limit the current to 10mA or less to ensure reliable operation and prevent overheating.
• How do I configure the TCA6408ZXYR for I2C bus operation?
  To configure the TCA6408ZXYR for I2C bus operation, connect the SCL pin to the I2C clock signal, and the SDA pin to the I2C data signal. Ensure that the device is powered and the address pins (A0, A1, and A2) are properly configured to match the desired I2C address.
• What is the purpose of the internal pull-up resistors on the input pins?
  The internal pull-up resistors on the input pins are used to bias the inputs to a logic high state when they are not driven by an external signal. This helps to prevent floating inputs and ensures that the device operates correctly even when the inputs are not actively driven.
• Can I use the TCA6408ZXYR as a level translator between 3.3V and 5V systems?
  Yes, the TCA6408ZXYR can be used as a level translator between 3.3V and 5V systems. The device can translate input signals from 3.3V to 5V or from 5V to 3.3V, making it suitable for use in mixed-voltage systems.
• How do I reset the TCA6408ZXYR to its default state?
  To reset the TCA6408ZXYR to its default state, apply a low signal to the RESET pin for at least 1ms. This will reset the device's internal registers and output states to their default values.