Hello, What is the maximum size of an SRAM block that would wo_rk in sky130? Is it the 2kb macro in the pdk? Weste/harris suggests_ a maximum of 256x256, however in the 2kb macro we are using 512 words; So can we go as high as 512x512?

We don't quite know. I'd suggest only 1 or 2k. We have a couple options for bigger memories: 1) we can have multiple words per row which let's us make them wider. The limitation is usually the bitline length (due to leakage) and the height. Too wide will get slow though. 2) we can use a hierarchical word line and multiple sub arrays. This divides the width up and makes really wide arrays faster 3) a combination of the above

That's the answer I was looking for. Thanks!