Prerequisite – Combinational circuits using Decoder, Introduction of Sequential Circuits
Combinational circuits are defined as the time independent circuits which do not depends upon previous inputs to generate any output are termed as combinational circuits. Sequential circuits are those which are dependent on clock cycles and depends on present as well as past inputs to generate any output.
Combinational Circuit –
- In this output depends only upon present input.
- Speed is fast.
- It is designed easy.
- There is no feedback between input and output.
- This is time independent.
- Elementary building blocks: Logic gates
- Used for arithmetic as well as boolean operations.
- Combinational circuits don’t have capability to store any state.
- As combinational circuits don’t have clock, they don’t require triggering.
- These circuits do not have any memory element.
- It is easy to use and handle.
Examples – Encoder, Decoder, Multiplexer, Demultiplexer
Block Diagram –
Sequential Circuit –
- In this output depends upon present as well as past input.
- Speed is slow.
- It is designed tough as compared to combinational circuits.
- There exists a feedback path between input and output.
- This is time dependent.
- Elementary building blocks: Flip-flops
- Mainly used for storing data.
- Sequential circuits have capability to store any state or to retain earlier state.
- As sequential circuits are clock dependent they need triggering.
- These circuits have memory element.
- It is not easy to use and handle.
- Difference between Characteristics of Combinational and Sequential circuits
- Analysis and Design of Combinational and Sequential circuits
- Classifications of Combinational and Sequential circuits
- Combinational and Sequential Circuits
- Difference between Circuit switching and Message switching
- Difference between Synchronous and Asynchronous Sequential Circuits
- Combinational circuits using Decoder
- Construction of Combinational Circuits
- Solving multiplexer circuit
- Synchronous Sequential Circuits in Digital Logic
- Introduction of Sequential Circuits
- Asynchronous Sequential Circuits
- RTL (Register Transfer Level) design vs Sequential logic design
- Difference and Similarities between PHP and C
- Difference between Stop and Wait, GoBackN and Selective Repeat
- Difference between Stop and Wait protocol and Sliding Window protocol
- Similarities and Difference between Java and C++
- Difference between Yaacomo and and XAP
- Difference between VoIP and and POTS
- Difference between ++*p, *p++ and *++p
Examples – Flip-flops, Counters
Block Diagram –
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