Consider the circuit diagram shown. You recognize the RS latch and the extension. The extension avoids the undefined state (R=1, S=1). Also the inputs are renamed to D and E, where D stands for "DATA" and E for "ENABLE".
Truth Table DE Latch. |
![]() Circuit Diagram DE Latch. |
Also the truth table has changed...
![]() Circuit of a DE Latch. (Enlarge) |
Image now, you want to store a piece of information (D). For this you swiitch E to 0, you enter the information by using D and put E back to 1. Now your information is stored. Flip flops are very versatile and can be found in a variety of digital applications. But more about this in other topics. For the moment this was the last experiment on this topic... |