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RS485 and RS232

Naizeng Wang
Expert 5400 points
Other Parts Discussed in Thread: THVD1451

Hi team,

Do we have levelshift products of RS485?

Could you please recommend combo solution of RS232 and RS485?

Thanks very much.

Nison

  • 0
    TI__Guru 62920 points

    Hi Nison,

    Do you mean a way to convert between RS-485 and RS-232 signalling?  If so, you can find an example circuit (using a half-duplex RS-485 implementation) here:

    http://www.ti.com/tool/TIDA-060008

    For point-to-point applications you could also implement a "full duplex" solution in which separate differential pairs could be used for TX and RX lines; this would require a full-duplex RS-485 transceiver like THVD1451 as well as an extra pair of wires but would not require the direction control circuitry using on this reference design.

    If you just need to convert single-ended logic-level signaling to either RS-485 or RS-232 level signaling, a transceiver device could be used.  You can find them here:

    Please let us know if you have any questions.

    Regards,
    Max