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SN65HVD55: About each characteristic value

Part Number: SN65HVD55

Hi team,

There is no maximum value for the pulse skew of the driver, is there a maximum value?
I don't see a value for HVD55 for the receiver either, but I would like to know this as well.

I would also like to know the minimum value for the input impedance of the receiver.

Sincerely.
Ryu

  • Hi Ryu,

    There isn't a maximum value specified for this part on pulse skew for the driver - we only have typical value for this part. 

    The receiver pulse skew is also not spec'd - but the typical value would be lower, maybe only marginally, from the part to part skew on this device (<6ns) 

    The minimum impedance isn't directly specified - it is a 1/8th unit load device  - which is typically approximated as an input impedance of 96K - figure 18 shows the typical input bus voltage vs. input bus current from -7V to 12V where the inverse of the slope is the input impedance - which runs higher than 96K - but it is generally safe to assume 96K ohms as  the minimum for 1/8th unit load devices.

    Best,

    Parker Dodson