Hi,
Today, one of friend ask me below question.
why nand gate only used as driving cell and load on input and output ports?
As per my understanding : There is no hard rule of using only nand gate. I have practice of using Buffer/AND/CTB cells as driving cell and set_load. I think why nand cells? answer is this is one of the slowest cells (Faster compare to Nor of same size). Other then this I don't see anything.
Let me your views on this question.
Gangadhar Naik