understanding-timing-diagrams-of-digital-systems

Timing diagrams are the main key in understanding digital systems. Timing diagrams explain digital circuitry functioning during time flow. Timing diagrams help to understand how digital circuits or sub circuits should work or fit in to larger circuit system. So learning how to read Timing diagrams may increase your work with digital systems and integrate them.Bellow is a list o most commonly used timing diagram fragments:

•Low level to supply voltage:

•Transition to low or high level:

•Bus signals – parallel signals transitioning from one level to other:

•High Impedance state:

•Bus signal with floating impedance:

•Conditional change of on signal depending on another signal transition:

•Transition on a signal causes state changes in a BUS:

•More than one transition causes changes in a BUS:

•Sequential transition – one signal transition causes another signal transition and second signal transition causes third signal transition.

As you see timing diagrams together with digital circuit can completely describe the circuits working. To understand the timing diagrams, you should follow all symbols and transitions in timing diagrams.

You can find plenty of symbols in timing diagrams. It depends actually on designer or circuit manufacturer. But once you understand the whole picture, you can easy read any timing diagram like in this example:

Sometimes you don’t even need to read a documentation in order to understand how one or another circuit work. You just look at Timing diagram and its all clear.