Digital Bus Line

A computer bus line can only be in one of two electrical states, HIGH or LOW. Depending on the standard, these states correspond to different voltage values. It also depends on the logic used, we can choose between positive and negative logic. Below we have a line on which we can use two very popular standards: TTL or RS232. We can also choose the logic: positive or negative.



Simulation

          Positive/Negative logic

          TTL/RS-232 standard