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TCA6424A cross talk between each Channel

Sridhar Padmanabhan42
Prodigy 10 points
Other Parts Discussed in Thread: TCA6424A

Hello One

One of my applications need to use TCA6424A (I2C based GPIO expander).

I would like to know the cross talk between each channel and the break-before-make operation of the channels in this chip.

I couldnt find them on the datasheet (may be I have not seen yet). Can you please help.

Thanks,

Sridharan

  • 0
    TI__Genius 16510 points
    Hello Sridhar,

    THanks for the questions.

    The specs you are asking for at uncharacteristic of an IO expander. They are not characterized because the IO expander is used only for digital inputs and outputs.

    Cross talk measurements were not taken for this device.

    The break-before-make operation is also not characterized, but let me speak with the design team and see if we have any information on that. In my experience for these devices, the switching of fets is done almost simultaneously.