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TXB0104:Can it be used by connecting 3 components?

geonwoong lee
Prodigy 10 points

Part Number: TXB0104
Other Parts Discussed in Thread: TXU0304, TXU0104, TXU0204

There are 3 PCBs, each device has 1 txb0104. The PCB is connected by cables.

Operation in MCU is just GPIO. But it is not working depending on the cable length. Is it possible to use 2 inputs for 1 output instead of 1 to 1?

We must use TXB0104, please advise.

  • 0
    Guru 325800 points

    TXB I/Os cannot be connected to each other. The TXB is bidirectional, and the output drivers on both sides are always active; the outputs are very weak to allow other devices to override the voltage. This means that the device driving a TXB input must be much stronger than the TXB output.

    The TXU0104/TXU0204/TXU0304 are pin-compatible, fixed-direction translators; they would be able to drive the cable and many other inputs.