Analog simulation of logic device-Orcad PSPICE

[Itamar_m]

Hello,
I'm using Cadence Orcad PSPICE . I'm trying to make time domain simulation to 74LS04 inverter .
The input is non ideal square wave. When I measure the output , the simulator shows only the logic level output, but not the real
time domain voltage.
How can i get the real output voltage?

Thanks

 

[FvM]

You can't get a real analog output because 74LS04 is a digital part without an analog model. Review PSPICE user guide section Digital device modeling. Certain analog parameters like output resistance or switching time can be modelled however. If you connect the logic device to an analog circuit, the output level is ruled by the DIGPOWER and DtoA settings.