... from a basic point of view. Logic- level design is the design tech- nique in which logic gates are used to design a digital component such as an adder. Final- ly, system-level design is covered ... Motorola 68030168040/68060/PowerPC 14 TABLE 1.2 Fundamentals of Digital Logic and Microcomputer Design Comparison of output characteristics of LS-TTL, nMOS, HC, and HCT IOH VOL IOL LS-TTL ... dissipation (in mW) of a gate. 1.2 Design Levels Three design levels can be defined for digital systems: systems level, logic level, and device level. Systems level is the type of design in which...