Maart 12, 2010
Geïntegreerde schakelingen en de 7400 Logic Families
Gepost door: reparatie : Categorie: Geïntegreerde schakelingen en de 7400 Logic Families
Once basic logic design theory is understood, the next step is transferring thatknowledge to a practical context that includes real components. This chapterexplains what an integrated circuit is and how off-the-shelf components can beused to implement arbitrary logic functions. Integrated circuits, called chipsby engineers and laymen alike, are what enable digital systems as we know them.The chapter begins with an introduction to how chips are constructed. Familiaritywith basic chip fabrication techniques and terminology enables an engineer tocomprehend the distinctions between various products so that their capabilitiescan be more readily evaluated. A survey of packaging technology follows toprovide familiarity with the common physical characteristics of commerciallyavailable chips. Selecting a package that is appropriate for a particular designcan be as critical as selecting the functional parameters of the chip itself. It isimportant to understand the variety of available chip packages and whydifferent types of packages are used for different applications.
The chapters major topic follows next: De 7400 Logic Families. These off-the-shelflogic chips have formed the basis of digital systems for decades and continue todo so, although in fewer numbers as a result of the advent of denser components.7400 family features are presented along with complete examples of how thechips are applied in real designs. The purpose of this discussion is to impart apractical and immediately applicable understanding of how digital system designcan be executed with readily available components. Although these devicesare not appropriate for every application, many basic problems can be solvedwith 7400 chips once it is understood how to employ them.
Having seen how real chips can be used to solve actual design problems, a closelyrelated topic is presented at the end of this chapter: the interpretation of data sheets.Manufacturers data sheets contain critical information that must be understood toensure a working design. An understanding of how data sheets are organizedand the types of information that they contain is a necessary knowledge basefor every engineer.
The chapters major topic follows next: De 7400 Logic Families. These off-the-shelflogic chips have formed the basis of digital systems for decades and continue todo so, although in fewer numbers as a result of the advent of denser components.7400 family features are presented along with complete examples of how thechips are applied in real designs. The purpose of this discussion is to impart apractical and immediately applicable understanding of how digital system designcan be executed with readily available components. Although these devicesare not appropriate for every application, many basic problems can be solvedwith 7400 chips once it is understood how to employ them.
Having seen how real chips can be used to solve actual design problems, a closelyrelated topic is presented at the end of this chapter: the interpretation of data sheets.Manufacturers data sheets contain critical information that must be understood toensure a working design. An understanding of how data sheets are organizedand the types of information that they contain is a necessary knowledge basefor every engineer.
door : E-book Complete_Digital_Design
