Working Principle of Flip Flop
Let us understand the working principle of flip-flop using the example of a simple D flip-flop.
A D Flip Flop has been shown in the diagram above. This flip flop consists of two inputs one of which is data input and the other is clock input. Corresponding to these two inputs are two outputs Q and Q’ (Q-complement). Now let us see the principle of operation.
Principle of Flip Flop
The flip flop is present in a certain state which is termed as the rest state of the flip flop. Let us consider that the initial state is when Q is 0 and Q’ is 1.
The data input is then used to decide the next state of flip-flop, this state will be triggered when a clock signal is given. The D high is the ‘set’ state and the D low is the ‘reset’ state. It is important to note that flip-flop doesn’t take input continuously, the clock is used to determine when the input data is taken. The flip-flop will change the state when the clock transitions from high to low depending on the data input.
According to the input, the output Q and Q’ get updated. The “set” transition state makes Q high and Q’ low. This is the reverse for the “reset” state. The output has been shown in the truth table above. This is how a flip-flop operates.
Applications of Flip Flop
Digital electronics is a very important branch of engineering used for circuit design and data storage. Flip Flops are an important part of digital electronics and are widely used for different purposes. In this article, we will study what are flip flops and the principles used in the working of flip flops. We will also see the applications of flip-flops through certain examples. Later we will discuss the advantages and disadvantages of flip-flops. The article will conclude with a discussion about the future trends of flip flops.
Table of Content
- Flip-Flop
- Types
- Working Principle
- Applications
- Advantages
- Disadvantages
- Future Trends