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TCA9554: Asking for the TCA9554 schematic review

SHH
Mastermind 32376 points
Part Number: TCA9554


Hi Team,
Customer would like to use TCA9544. Would you please review the schematic and provide your comment?


BR,
SHH

  • 0
    TI__Guru* 77791 points
    Hello SHH,

    Are all the ports going to be set as outputs? If not then it looks like they will be floating inputs, if they are being used as inputs then I would suggest you reference them to either GND or Vcc with a resistor.

    I assume you will have a pull up resistor on SDA/SCL/INT as I do not see them in the schematic.

    Lastly you may want to throw a capacitor on Vcc, something like 0.1uF should work.

    Thanks,
    -Bobby