Synchronous Precharge Logic

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Precharge Logic Basics

1.1 Introduction

The purpose of this book is to describe the issues involved in precharge circuit design and to establish design guidelines that will minimize the design risk. Anyone designing dynamic circuits or full swing memories should read this book.

There are many logic families utilizing the metal oxide semiconductor (MOS) transistor. Static complementary metal oxide semiconductor (CMOS) is the most widely used, partly because it is safe. “Safe” means that it will almost always work without any special considerations. However, sometimes static logic just is not good enough. In advanced very large scale integration (VLSI) systems such as microprocessors, there arise “critical” logic paths where static logic is just ...