Hello,
I have a switch model for nfet and pfet. All combinational gates work fine with those models. I was modeling a latch with the that model. But it wont store a  value. So i added capacitor between gate and source and capacitor between source and drain. Still the result is always same it 1.8v irrespective of the input.
        I(G,S) <+ c1 * ddt(V(G,S));
        if (V(G) >=  0.9) Rch = Roff ;
        else Rch = Ron ;
     I(S,D) <+ c1 * ddt(V(S,D));
     a = transition(Rch,0,0,0);
    V(S,D) <+ I(S,D) *  a;
This is for nfet. Can you suggest why is it not working? the c1 value i am using is 1fF as my ron =100 ohms.
hoping to get the solution to work with this.
thanks

hey,
well what i am doing is, i have a generic model for pfet and nfet. THe latch is a DLATCH, i have the schematic and i am placing my model in place of actual pfet and nfets. It is working for all types of gates. But failing for latch. So i think i need to store that value somehow. THe code that is there  seems logically correct, and i did the V(G,S) its not making any difference. So can you provide any other solution.
Thanks a lot!!