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What is the advantage of CMOS over NMOS ?

This question is related to Cisco Interview
Asked by: Interview Candidate | Asked on: Aug 31st, 2005
Showing Answers 1 - 7 of 7 Answers
JAYASURIAN

Answered On : Jul 11th, 2005

 
We can save the power if we are using CMOS 
That is power concemption is low.

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HARI KRISHNA REDDY

Answered On : Aug 31st, 2005

CMOS is preffered because we can reduce the complexity of the circuit and also much power is saved

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djdansays

Answered On : Aug 7th, 2006

View all answers by djdansays

What about Manufacturing problems faced by CMOS over NMOS? Manufacturing CMOS is difficult when compared to NMOS and PMOS because CMOS includes both NMOS and PMOS. Whereas NMOS and PMOS has uniform structure and hence easy to manufacture.

  
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smokindesi

Answered On : Oct 9th, 2006

CMOS is preffered over NMOS

as CMOS propogates both logic '1', and '0', without a voltage drop

when using NMOS only, logic '1' (i.e Vdd) suffers a thresold drop and the output after passing through one NMOS gate would be Vdd-Vt(thresold voltage of the NMOS gate).

Hence signal margin is very important in NMOS causing possible SI(signal integrity) issues.

Hence CMOS is preferred. By the way CMOS and NMOS and also PMOS are all low powered. Static power consumption is the same, dynamic power consumption depends on signal swing (i.e number of times data line varies)

  
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Murali

Answered On : Oct 20th, 2011

The most important advantage of CMOS is the very low static power consumption in compare with NMOS technology.

  
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shikha bansal

Answered On : Jan 3rd, 2012

CMOS provides more noise margin than NMOS.

  
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sumit

Answered On : Jan 27th, 2012

The most important advantage of CMOS is the very low static power consumption in compare technology.

  
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