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SN74LVC8T245 I/V curve

1351769
Intellectual 275 points

Hello,

I am Interested in the static output I-V characteristics so that we can determine optimal back termination for driving UTP transmission lines.  For example, some of the other families suggest 33 ohm series termination, does this device support this?  I see there is an IBIS model available so is using a IBIS simulator the only way to confirm this or are there any I/V curves already generated.

 

Thanks

  • 0
    TI__Genius 14317 points

    This device is an LVC family device. Fig. 15 in the attached document shows the V/I output characteristics. Termination methods are also described in this document and for series back termination, the series resistor value should match the characteristic impedance (Zo) of the output interconnect trace or cable/wire.

    scba011.pdf