Digital Electronics: Principles, Devices and Applications

102 Digital Electronics1A1B2A2B3A3B4A4B(1)(2)(4)(5)(9)(10)(12)(13)&(3)(6)(8)(11)1Y2Y3Y4YFigure 4.44 ANSI symbol for IC 7400.1A1B1C1D(1)(2)(4)(5)&(6)1Y2A2B2C2D(9)(10)(12)(13)(8)2YFigure 4.45 ANSI symbol for IC 7420.Example 4.15Draw the IEEE/ANSI symbol representation of the logic circuit shown in Fig. 4.46.SolutionFigure 4.47 shows the circuit using IEEE/ANSI symbols.4.13 Some Common Applications of Logic GatesIn this section, we will briefly look at some common applications of basic logic gates. The applicationsdiscussed here include those where these devices are used to provide a specific function in a largerdigital circuit. These also include those where one or more logic gates, along with or without someexternal components, can be used to build some digital building blocks.