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SN65HVD75: Searching for an equivalent alternate

Scott Harshman
Prodigy 30 points
Part Number: SN65HVD75

Looking for an drop in equivalent alternative to ST1480ABDR. The refernced chip is in the right family, but I see several places where the Referenced TI chip differs and I can't seem to locate a close equivalent, so I'm wondering if TI has any other chips more closely matching the STMicro spec that I simply am not finding? 

  • 0
    TI__Guru 62920 points
    Hi Scott,

    What is it that you need from ST1480 that SN65HVD75 is not providing? They look to have the same pinout/functionality, and HVD75 supports higher data rates, more nodes, and has higher ESD tolerance.

    Max
  • 0 in reply to Miguel Robertson
    Prodigy 30 points
    Hysteresis voltage differences (30µV on the ST1480, vs 80mV for TI's Chip). I have to look further into our design to say if this has design impact or not based on the signal voltages but if there were an equivalent component I'd go for that first. There were questions about 8-SOIC availability in the SN65HVD75 PN at first, but only because I was reading too much into the the table on page 1 of the data sheet - seems like form factor is fine.
  • 0 in reply to Scott Harshman
    TI__Guru 62920 points
    Hi Scott,

    HVD75 is very similar in its specification of minimum and maximum input threshold levels for the receiver compared to ST1480 (it is actually a few mV tighter), so the extra hysteresis does not come with any widening of thresholds (which would have been a concern in applications operating close to the limit in terms of signal amplitude/loss). So, the extra hysteresis should only be beneficial and help to improve noise immunity. (Hysteresis prevents the receive output from toggling due to small amounts of noise when the input signal is close to the switching threshold.)

    Regards,
    Max