This shift register allows serial input and generates a parallel output, so this is known as serial in parallel out (SIPO) shift register.
The serial in parallel out (SIPO) shift register circuit is shown above. The circuit can be built with four D-Flip Flops, and in addition, a CLR signal is connected to CLK signal as well as flips flops in order to rearrange them. The first FF output is connected to the next FF input. Once the same CLK signal is given to every flip flop, then all the flip flops will be synchronous with each other.
In this type of register, serial data input can be taken from the left side of the FF & generates an equivalent output. The applications of these registers include communication lines because the main function of the SIPO register is to change serial information into parallel information.