:>Joey-zyzmax wrote: :>: Hello all, I have to simulate a digital circuit, in the circuit there :>: is a timer triggled by a leading edge pluse, it is to say that when the :>: leading edge comes, then the timer start working. I don't know how to :>: realize it bu PSpice. can someone help me, thank you very much. :>
:>PSpice is exactly the wrong tool to use for simulation of digital :>circuits. [1] Try using something like Tkgate instead: :>
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:>Stuart :>
:>[1] Yes I know the quibblers and nit-pickers on this froup will say :>that you can do some level of digital stuff in PSpice. The point here :>is that Hr. Zyzmax is evidently a clueless newbie, using SPICE to do :>digital stuff is a non-optimal way to work, and so Hr. Zyzmax should :>be helped to find a more appropriate tool.
: Spricht so den Dorfidioten.
Weil Sie auf meinen Post reagieret haben, so muss ich annehme, dass Sie under den Dorfidioten stehen. :-) [1]
: PSpice A/D does quite nicely as a digital simulation tool and includes : a nice selection of 'HC CMOS parts (as well as most other commercially : available stuff) to select from.
: And PSpice can also do MIXED analog and digital circuits.
Wonderful. Does Hr. Zyzmax need to do mixed signal analysis? Or is he analyzing a clocked counter? Does PSpice handle synchronous logic analysis, or is it only useful for combinational logic analysis? And if you can do synchronous logic analysis, is there a graphical primitive (i.e. symbol) for a clock oscillator?
And does Hr. Zyzmax need a >$1000 "upgrade" to get any of the required features for logic work?
Stuart
[1] Kaum zu glauben fuer ein Messingrattetraeger, nicht?