

The logic circuit given below shows a parallel-in-serial-out shift register. The shift register, which allows parallel input (data is given separately to each flip flop and in a simultaneous manner) and produces a serial output is known as Parallel-In Serial-Out shift register. Parallel-In Serial-Out Shift Register (PISO) – They are used in communication lines where demultiplexing of a data line into several parallel lines is required because the main use of the SIPO register is to convert serial data into parallel data. The above circuit is an example of shift right register, taking the serial data input from the left side of the flip flop and producing a parallel output. All these flip-flops are synchronous with each other since the same clock signal is applied to each flip flop. The output of the first flip flop is connected to the input of the next flip flop and so on. The clear (CLR) signal is connected in addition to the clock signal to all the 4 flip flops in order to RESET them. The circuit consists of four D flip-flops which are connected. The logic circuit given below shows a serial-in-parallel-out shift register. The shift register, which allows serial input (one bit after the other through a single data line) and produces a parallel output is known as Serial-In Parallel-Out shift register. Serial-In Parallel-Out shift Register (SIPO) –

The main use of a SISO is to act as a delay element. The above circuit is an example of shift right register, taking the serial data input from the left side of the flip flop.

The circuit consists of four D flip-flops which are connected in a serial manner. The logic circuit given below shows a serial-in serial-out shift register. Since there is only one output, the data leaves the shift register one bit at a time in a serial pattern, thus the name Serial-In Serial-Out Shift Register. The shift register, which allows serial input (one bit after the other through a single data line) and produces a serial output is known as Serial-In Serial-Out shift register. Serial-In Serial-Out Shift Register (SISO) –
#Parallel to serial converter using mux and flip flops series#
It is a group of flip flops connected in series used to store multiple bits of data. A Register is a device which is used to store such information. N flip flops are to be connected in an order to store n bits of data.

However, in order to store multiple bits of data, we need multiple flip flops. Flip flops can be used to store a single bit of binary data (1or 0).
