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TCA9539-Q1: TCA9539QPWRQ1 review schematic

Part Number: TCA9539-Q1

Hi, Support Team

We will use TCA9539-Q1 as below chart: about schematic have any concern?

if any suggestion, Please advise me.


Best regards,


  • Hi Lawrence,

    No immediate concerns from what I can see-  the address is configured correctly, bypass caps sized accordingly- I am assuming you have pullups internal to the device upstream as they are not visible in the schematic shown.