Oct 31, 2003 #1 T taoly Junior Member level 3 Joined Mar 5, 2003 Messages 31 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,286 Activity points 138 input capacitance in hspice or spectra, does anyone know hot to get or calculate the input capacitance value(Cin) of a I/O cell? help me. thx!
input capacitance in hspice or spectra, does anyone know hot to get or calculate the input capacitance value(Cin) of a I/O cell? help me. thx!
Oct 31, 2003 #2 H Humungus Full Member level 6 Joined Jul 10, 2001 Messages 383 Helped 41 Reputation 82 Reaction score 15 Trophy points 1,298 Activity points 3,985 Re: input capacitance to measure the input capacitance you may drive the port with a current. So, by measuring the time it takes the signal to go between two different voltages you can deduce the input capacitance. I=C . dV/dt You must be sure that the parasitic capacitance due to interconects is considered and explicitly present in the netlist you are simulating
Re: input capacitance to measure the input capacitance you may drive the port with a current. So, by measuring the time it takes the signal to go between two different voltages you can deduce the input capacitance. I=C . dV/dt You must be sure that the parasitic capacitance due to interconects is considered and explicitly present in the netlist you are simulating