Before we present sequential logic circuits, we must introduce also the concept of clocks which control their outputs. For example, all the functions of the Pong game are synchronized and dependent on the master clock, so the clock presents a vasculature that will pump blood through Pong’s bloodstream. The same is true for the work of the processor – everything the processor does is synchronized with the clock.
In this chapter, we will build a simple clock generator, using our basic building component, the transistor. After a discrete realization, we will introduce the 555 chip and its configurations.
Since capacitors play a significant role in clock realization, let us introduce them.
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