From the internal circuit diagram of the NE555 you can see that the RESET input, Pin 4, is connected directly with the RS latch. Now you have the opportunity to reset the NE555.
![]() Internal circuit diagram RESET input NE555. |
Now consider the circuit shown...
![]() Circuit RESET input NE555. (Enlarge) |
![]() Circuit diagram RESET input NE555. |
As soon as you push the pushbutton switch S3...
As long as you keep S3 pressed, OUT stays on LOW. You will take advantage of this in later experiments.
In the next step you get to know the final output...