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SN65MLVD206: SN65MLVD206 and SN65MLVD040 at the same bus

Part Number: SN65MLVD206
Other Parts Discussed in Thread: SN65MLVD040,

Hi Dear expert,

If SN65LMVD206 and SN65MLVD040 are in the same bus, will there be problem that these two MLVD transceivers has matching issue? We have concern these two devices are different devices, not sure whether it will have communication issue.

Moreover, for SN65MLVD040 RX mode, do we recommend type1 or type2?

Thanks a lot for your reply in advance.

Joyce.

  • Hello Joyce,

    There shouldn't be any issues with having SN65MLVD206 and SN65MLVD040 on the same bus.

    Regarding Type-1 vs. Type-2, it really depends on the application, especially if they need that receiver to be fail-safe. Type-1 receivers are not fail-safe and have the input differential voltage thresholds around zero (+/- 50 mV). Type-2 receivers have the input differential voltage thresholds around 100 mV (<50 mV is low, > 150mV is high). So they will output low the absence of input differential voltage. Generally, Type-1 receivers maximize the differential noise margin and are intended for higher signaling rates, like clocks. Type-2 receivers are intended for control signals and slower signaling rates.

    Regards,
    Yaser