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TMUX1309-Q1: CAN TXD - RXD multiplexing

Kai Nomiyama
Expert 5655 points
Part Number: TMUX1309-Q1
Other Parts Discussed in Thread: TCAN1057A-Q1

Hi Team,

Can I ask a question about CAN TXD-RXD multiplexing?

when we want to share one CAN TXD - RXD pair with two MCUs, TMUX1309-Q1 can support as its multiplexing.

in that case, are there anything we have to take care?

When I consider TMUX1309-Q1 and TCAN1057A-Q1 combination as example, TMUX1309-Q1 can cover following TCAN1057A-Q1 abso max ratings.

from electrical characteristics point of view, TMUX1309-Q1 can support is but if there are any other concerns you come up with, please let me know.

Regards,

Kai

  • 0
    Guru 318700 points

    There are no special considerations for muxing digital logic signals; just check that the voltages and frequencies are supported by the switch.

  • 0
    TI__Genius 10552 points

    Hi Kai,

    Just like Clemens mentioned, the main considerations are signal and supply voltages as well as bandwidth. As long as these are accounted for then you can use the TMUX1309-Q1 in your application. 

    Can you share the use case of this application? I noticed it's an automotive part so just wondering what the application is here. 

    Regards,

    Alex