Orcad Pspice for Windows Digital and Data Communications

Preface Nothing happens unless first a dream. CARL SANDBURG, Washington Monument by Night, 1970 OrCAD PSpice for Windows, Volume IIIis the third manual in a three-volume series on Spice circuit simulation. It covers Digital and Data Communications. (Volume I covers DC/AC Circuits and Volume II covers Devices, Circuits, and Operational Amplifiers.) If you are already familiar with Volume I or II, you will find few surprises in Volume III. If not, here is a brief overview: The text is based on the latest free evaluation version 9 of the most popular simulation software on the market today: OrCAD'sPSpice.It is introductory in nature and is appropriate for those with little or no experience in circuit simulation. The level of difficulty is tailored to the technology student, but it offers enough "gentle" material for the technician and enough challenging material for the engineer. It covers both PSpice techniques and electronic theory and applications, and the choice and sequence of material closely follows that of a conventional text on digital. Since most activities can be done by either PSpice simulation or hands-on construction, it is designed to replace a conventional laboratory manual. Why PSpice for Windows? As a devoted educator, the chances are you strongly believe that your students must have a circuit simulation experience before they apply their knowledge and skills on the job. Would it not be reasonable to seek out the most popular circuit simulation software on the market today? Would it not also be highly beneficial to use the same software package that is used by engineers and technicians on the job--restricted only by circuit complexity? And would it not be sensible to reduce your costs to zero, and to distribute the software without regard for licenses or copyright restrictions? Volume III We assume that the majority of students reading this preface have at least a passing familiarity with. Volume I or II. The majority of the most fundamental PSpice techniques and processes are covered in Volume I. Since there is insufficient room to repeat all the introductory material here, short review inserts are presented where appropriate and special Simulation Notes are reprinted in Appendix A. Therefore, if this text is being used in a classroom situation, we strongly recommend that several copies of Volume I be available for reference and review. Volume III is divided into six parts: Gates and Flip-Flops; Violations and Hazards; Counters, Shift Registers, Coders, and Timers; Converters and RAM; Data Communications; and Modular Design and Applications. This is generally the same order and mix of subjects found in a typical digital course. The modular techniques of Part 6 can, for the most part, be applied to any of the previous chapters at any time. OrCAD's Total Solution For designing electronic circuits, OrCAD offers a total solution package, including schematic entry, FPGA synthesis, digital, analog, mixed-signal simulation, and printed circuit board layout-everything from start to finish. All software components are fully integrated and are designed to follow an engineer's natural design flow. This text is based exclusively on just one part of the complete package: PSpice A/D. Fortunately, PSpice A/D is precisely what we need to support a college-level technology class, for this software component simulates nearly any mix of analog and digital circuits and conveniently displays the results in graphical form. It is incredibly powerful, easy to learn, and simple to use. Quite simply, OrCAD's PSpice A/D is one of the best learning tools available. OrCAD Lite Fortunately, for those of us in education, OrCAD Corporation has made PSpice evaluation software available at no cost. All the activities in this book are based on OrCAD Lite versiGoody, Roy W. is the author of 'Orcad Pspice for Windows Digital and Data Communications', published 2000 under ISBN 9780130311832 and ISBN 0130311839.