How is a digital signal represented visually in TPC schematics?

In TPC schematics, a digital signal is visually represented by square waves or specific waveform shapes. This representation effectively shows the distinct on and off states of a digital signal, which are fundamental to its definition. The square wave illustrates the binary nature of digital signals, where voltages switch between two levels, typically representing binary values of 1 and 0.

The clarity of square waves allows engineers and technicians to easily interpret the timing and logic states involved in digital communication, logic circuits, and microcontroller operation. In contrast to analog signals, which are smoothly varying (represented by continuous lines or curves), digital signals' discrete changes can be clearly depicted using this format, emphasizing their properties such as rise time, fall time, and duty cycle.

In summary, square waves provide a straightforward and effective means of visualizing the essential characteristics of digital signals in a schematic context, making it easier for those working with electronic designs to grasp the underlying digital logic.