A SIMPLE explanation of an SR Flip Flop (or SR Latch). Learn what an SR Flip Flop is, see the SR Flip Flop Truth Table, and a diagram of an SR Flip Flop circuit. Learn how to use SR flip flop, a fundamental building block in digital electronics, to store a single bit of data. See the truth table, logic symbol, excitation table, and master-slave configuration of SR flip flop. In digital electronics, a flip-flop (FF) is a 1-bit storage device. It is also known as a bistable multivibrator as it has two stable states, denoted by 0 and 1. Based on construction, FFs are classified into various types such as SR, JK, D, and T flip-flops. In this article, we will discuss the SR FF, its construction, block diagram, truth table, advantages, and applications. So, let’s start with the basic definition. From the truth table of SR flip-flop we see that the output of the SR flip-flop is in unpredictable state when the inputs are same and high. In many practical applications, these input conditions are not required.