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Modern VLSI Design: System-on-Chip Design, Third Edition by Wayne Wolf

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3Logic Gates

Highlights:

Combinational logic.

Static logic gates.

Delay and power.

Alternate gate structures: switch, domino, etc.

Wire delay models.

3.1 Introduction

This chapter concentrates on the design of combinational logic functions. The knowledge gained in the last chapter on fabrication is important for combinational logic design—technology-dependent parameters for minimum size, spacing, and parasitic values largely determine how big a gate circuit must be and how fast it can run. We will start by reviewing some important facts about combinational logic functions. The first family of logic gate circuits we will consider are static, fully complementary gates, which are the mainstay of CMOS design. We will analyze the properties ...

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