Digital CMOS Logic Circuits
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چکیده
1.1. Digital IC Technologies and Logic-Circuit Families The chart in Figure 1 shows the major IC technologies and logic-circuit families that are currently in use. Members of each family are made with the same technology, have a similar circuit structure, and exhibit the same basic features. Each logiccircuit family offers a unique set of advantages and disadvantages. In the conventional style of designing systems, one selects an appropriate logic family (e.g., TTL, CMOS, or ECL) and attempts to implement as much of the system as possible using circuit modules (packages) that belong to this family. In this way, interconnection of the various packages is relatively straightforward.
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