Transistor Switching and Sequential Circuits presents the basic ideas involved in the construction of computers, instrumentation, pulse communication systems, and automation. This book discusses the design procedure for sequential circuits. Organized into two parts encompassing eight chapters, this book begins with an overview of the ways on how to generate the types of waveforms needed in digital circuits, principally ramps, square waves, and delays. This text then considers the behavior of some simple circuits, including the inverter, the emitter follower, and the long-tailed pair. Other chapters examine the significant methods of producing non-sinusoidal waveforms, such as saw-tooth waves or square waves. This book discusses as well the procedures in organizing a circuit, which can be used in more complex applications than in the design of counters. The final chapter deals with the principle of machine multiplication. This book is a valuable resource for students engaged in the design and construction of digital or switching circuits.

Rapid increases in chip complexity, increasingly faster clocks, and the proliferation of portable devices have combined to make power dissipation an important design parameter. The power consumption of a digital system determines its heat dissipation as well as battery life. For some systems, power has become the most critical design constraint. Computer-Aided Design Techniques for Low Power Sequential Logic Circuits presents a methodology for low power design. The authors first present a survey of techniques for estimating the average power dissipation of a logic circuit. At the logic level, power dissipation is directly related to average switching activity. A symbolic simulation method that accurately computes the average switching activity in logic circuits is then described. This method is extended to handle sequential logic circuits by modeling correlation in time and by calculating the probabilities of present state lines. Computer-Aided Design Techniques for Low Power Sequential Logic Circuits then presents a survey of methods to optimize logic circuits for low power dissipation which target reduced switching activity. A method to retime a sequential logic circuit where registers are repositioned such that the overall glitching in the circuit is minimized is also described. The authors then detail a powerful optimization method that is based on selectively precomputing the output logic values of a circuit one clock cycle before they are required, and using the precomputed value to reduce internal switching activity in the succeeding clock cycle. Presented next is a survey of methods that reduce switching activity in circuits described at the register-transfer and behavioral levels. Also described is a scheduling algorithm that reduces power dissipation by maximising the inactivity period of the modules in a given circuit. Computer-Aided Design Techniques for Low Power Sequential Logic Circuits concludes with a summary and directions for future research.

Since its inception, the Tutorial Guides in Electronic Engineering series has met with great success among both instructors and students. Designed for first and second year undergraduate courses, each text provides a concise list of objectives at the beginning of every chapter, key definitions and formulas highlighted in margin notes, and references to other texts in the series. Semiconductor Devices begins with a review of the necessary basic background in semiconductor materials and what semiconductor devices are expected to do, that is, their typical applications. Then the author explains, in order of increasing complexity, the main semiconductor devices in use today, beginning with p-n junctions in their various forms and ending with integrated circuits. In doing so, he presents both the "band" model and the "bond" model of semiconductors, since neither one on its own can account for all device behavior. The final chapter introduces more recently developed technologies, particularly the use of compound instead of silicon semiconductors, and the improvement in device performance these materials make possible. True to the Tutorial Guides in Electronic Engineering series standards, Semiconductor Devices offers a clear presentation, a multitude of illustrations, and fully worked examples supported by end-of-chapter exercises and suggestions for further reading. This book provides an ideal introduction to the fundamental theoretical principles underlying the operation of semiconductor devices and to their simple and effective mathematical modelling.