Using LTSPICE simulate CMOS function

AI Thread Summary
The discussion revolves around simulating a CMOS function using LTspice, specifically focusing on the output F for different input combinations. The user is struggling to achieve the correct output despite having drawn the schematic. There is a suggestion to construct a truth table instead of using LTspice, but the requirement is to synthesize the function in SPICE. The user also questions the correctness of the function representation, indicating confusion about the logic expression. The conversation highlights the challenges of using LTspice for circuit simulation in academic settings.
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Homework Statement



write the output F for different combinations of input using

F= abc
F= ((ab)’+c)’


Homework Equations





The Attempt at a Solution



I've tried and have drawn the schematic but I can't get correct output righ, I am using LTspice which is not very intuitive... I have attached my schematics. thx
 

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I haven't looked at your circuit, but why go to that trouble? Why not simply construct a truth table?
 
The professor wants it synthesized in SPICE. My waveforms look incorrect.
 
Isn't F = ((ab)' + c')'?
 
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