Different between Moore and Mealy Model

Moore Model

• The output depends on a function of the present state only, therefore the output can change only on a clock edge.
• Output is only function of state
• Example of Moore Model :

• Truth table :

Mealy Model

• the output depends on the function of the current state and current inputs, therefore the output can change when any input changes.
• Has asynchronous outputs.
• The output are independent of clock (because the output depends on the current state and input)
• Example of Mealy Model :

• The truth table :

* taken from BENM 2133 Chapter 2 Lecture Note