SHIFT REGISTER

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What is a Shift Register?, Different Types, Counters and Applications

We know that FF or Flip-Flop can be used to store the data in the form of 1 or 0. However, if we need to store up several data bits, we need many flip-flops. A register is a device in digital electronics which is used for storing the data. Flip-flops play a vital role in designing the most popular shift registers. The set of Flip-flops is nothing but a register, used to store numerous data bits. For example, if a PC is used to store 16-bit of data, subsequently it requires a set of 16-FFs. And, the inputs, as well as outputs of a register, are serial otherwise parallel depending on the requirement. This article discusses what is a shift register, types, and applications.

What is a Shift Register?

A register can be defined as when a set of FFs can be connected within the series, the definition of the shift register is when the stored data can be moved in the registers. It is a sequential circuit, mainly used to store the data, & moves it to the output on each CLK (clock) cycle.

Types of Shift Registers

Basically, these registers are classified into four types and working of shift registers are discussed below.

  • Serial in Serial out (SISO) Shift Register
  • Serial in parallel out (SIPO) Shift Register
  • Parallel in Serial out (PISO) Shift Register
  • Parallel in Parallel out (PIPO) Shift Register

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