Master Slave Flip Flop Schaltung. A d flip flop takes only a single input the d data input. Master slave flip flop are the cascaded combination of two flip flops among which the first is designated as master flip flop while the next is called slave flip flop figure 1.
Buffered q and q signals are provided as outputs. The output from the master flip flop is connected to the two inputs of the slave flip flop whose output is fed back to inputs of the master flip flop. The master slave flip flop is basically a combination of two jk flip flops connected together in a series configuration.
Due to this additional clocked input a jk flip flop has four possible input combinations logic 1 logic 0.
The output from the master flip flop is connected to the two inputs of the slave flip flop whose output is fed back to inputs of the master flip flop. The jk flip flop is basically a gated sr flip flop with the addition of a clock input circuitry that prevents the illegal or invalid output condition that can occur when both inputs s and r are equal to logic level 1. Master is a positive level triggered. The master slave flip flop is designed in such a way that the output of the master flip flop is passed to both the inputs of the slave flip flop.
