- Flip flops are capable of storing 1-bit data, but to store more than 1 bit, registers are required. Registers, which are groups of flip flops, are employed to increase storage capacity. With n flip flops, it is possible to store an n-bit word using a single register.
- Binary data stored in registers can be shifted between flip flops using shift registers.
- A Shift Register is a group of flip flops used to store multiple bits of data and move the data from one flip flop to another. This shifting of data is accomplished using a clock signal. An n-bit shift register requires n flip flops. Shifting can occur either left or right using a Shift Left Register or Shift Right Register.
- Shift registers are classified into the following types:
- SISO (Serial In Serial Out)
- SIPO (Serial In Parallel Out)
- PISO (Parallel In Serial Out)
- PIPO (Parallel In Parallel Out)
- Bi-directional Shift Register
- Universal Shift Register
To gain a deeper understanding of each register, simply click on the corresponding register. Happy Learning!!
