SNM calulation of SRAM using LTSPICE

Thread Starter


Joined Dec 30, 2020
Hi all
I am doing the simulation of 6T sram cell. I need to measure the static noise margin of the cell using LTSpice. I did with dc sweep analysis between Q vs QBAR and then sweep with QBAR vs Q and i got some results. Now how to calculate the SNM using the butterfly curve? Whether we have to invert the sceond plot to get the exact butterfly curve.??