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What is a sequential circuit and What is a combinational circuit?
Is there any difference between them? If yes what is it?

  
Total Answers and Comments: 5 Last Update: May 20, 2008     Asked by: madhu 
  
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September 02, 2007 13:49:29   #1  
kajamuhaiyadeen        

RE: What is a sequential circuit and What is a combina...
Combinational circuit does not have any memory in the feedback path but the sequential circuit has memory in the feedback path.
Ex of SEQ Circuit: Encoder, Decoder etc
Ex of Comb Circuit; Flipflop

 
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September 11, 2007 07:02:16   #2  
sweta basanta        

RE: What is a sequential circuit and What is a combina...
Combinational circuit are those whose output depends only upon the present inputs but in sequential circuit the output depends upon both present and past inputs. that is the difference. 
 
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October 29, 2007 05:11:01   #3  
sagar61 Member Since: September 2007   Contribution: 9    

RE: What is a sequential circuit and What is a combina...

sequential ckt. is a logic ckt whose output at any instant depend upon the past output or input value.
combinational ckt is a ckt whose o/p at anyinstant depend upon only present input.
The sequential ckt involves memory, combinational ckt has no memory


 
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April 22, 2008 00:17:27   #4  
gckgeek Member Since: April 2008   Contribution: 1    

RE: What is a sequential circuit and What is a combinational circuit?Is there any difference between them? If yes what is it?
The main differance between sequential and combinational circuit is memory. The output of the sequential circuit depend upon the privious input and previous output of the circuit. While in case of combinational, current output is depend on current input only.

 
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May 20, 2008 09:19:55   #5  
Nafee Member Since: May 2008   Contribution: 1    

RE: What is a sequential circuit and What is a combinational circuit?Is there any difference between them? If yes what is it?
Sequential circuits are those crt whoese output depond on present input as well as on previos o/p,it has flip flops for temporary storage e.g flip flop & on the other hand the combinational logic crt ae those whoese output only depond on present input only e.g mux,de-mux,encoder,decoder
 
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