102
Digital Electronics
(1)
(2)
(4)
(5)
(9)
(10)
(12)
(13)
(3)
(6)
(8)
(11)
1Y
2Y
3Y
4Y
&
1A
1B
2A
2B
3A
3B
4A
4B
Figure 4.44 ANSI symbol for IC 7400.
(1)
(2)
(4)
(5)
(9)
(10)
(12)
(13)
&
(6)
(8) 2Y
1Y
1A
1B
1C
1D
2A
2B
2C
2D
Figure 4.45 ANSI symbol for IC 7420.
Example 4.15
Draw the IEEE/ANSI symbol representation of the logic circuit shown in Fig. 4.46.
Solution
Figure 4.47 shows the circuit using IEEE/ANSI symbols.
4.13 Some Common Applications of Logic Gates
In this section, we will briefly look at some common applications of basic logic gates. The applications
discussed here include those where these devices are used to provide a specific function in a larger
digital circuit. These also include those where one or more logic gates, along with or without some
external components, can be used to build some digital building blocks.