I'm frequently asked in class to create a logic circuit based on some specifications. Building the circuit and deriving the equations is the easy part. We are usually told to implement our circuit using only NAND or only NOR gates (akin to a real-life scenario).

I find myself consulting pages like this once I have my equations an am about to draw the circuit. If memorizing these combinations are the only way to make a NAND or NOR exclusive circuit, then I will. But there ought to be a better way of converting everything quickly and neatly.

Anyone?

## Best Answer

If you have an existing schematic consisting of Inverters, AND, and OR Gates, then there is a simple, three step process that you can follow to convert the circuit to all NAND (you can modify the process slightly for NOR). You can use "Bubble Logic".

Let's assume you have three levels of logic. The first level, closest to your inputs, consists of inverters. The second level consists of AND gates. And the final level consists of just a single OR gate. Some textbooks may refer to this as being a "sum of products" Boolean Algebra expression.

You could do a similar process for an all NOR implementation. I hope that helps!