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Why you prefer cmos design instead of nand or nor logic?

Updated: 8/18/2019
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14y ago

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Since CMOS can be NAND and NOR logic this question seems to make little sense.

However. If you by any chance think about CMOS Design versus TTL Design then this is a most interresting question.

CMOS drain little current at low speed. As speed increases, the drain increases.

TTL drain much the same current no matter the speed.

There have been made TTL families that only use a little current. This will some times make this family preferable to CMOS. Especially true regarding high frequency logic circuitry.

The benefit from TTL is that one output can source 8-14 inputs (Depending on family)

CMOS is an ideal choice for low frequency battery operated equipment.

It does not provide long batterylife at high frequencies though as drain of current increases.

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Q: Why you prefer cmos design instead of nand or nor logic?
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What are the Disadvantages of cmos over pmos and nmos?

CMOS and NMOS are two logic families. As the name itself indicates, CMOS is complementary Metal Oxide Semiconductor technology. It uses both PMOS and NMOS transistors for design. Whereas, NMOS logic family uses only NMOS FETs for design.


Which logic family dissipates the minimum power?

Cmos logic family, because it has no resistors attached who consume active power.


Why is a TTL logic gate faster than a CMOS logic gate?

The switching time (on and off) of the TTL logic gate is very fast in comparison with CMOS logic gate. However, they could not tolerate higher range of power supply.


Which logic family has lowest power dissipation?

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What is fastest logic family from ecl and cmos?

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What is the functions of cmos to the motherboard?

CMOS (complementary metal oxide semi conductor) is a logic family. A logic family refers to the way of implementing logic. Using this technique, logic gates are realized. The combination of several logic gates forms a digital circuit or integrated circuit (IC). A mother board is also an IC. The technique used to realize it is CMOS logic.


Why cmos are ratioless logic device?

because its a balanced device


How cmos logic families works in negative temperatures?

CMOS logic families tolerate low temperatures because they are designed to. I suppose the why is not public because those would be trade secrets.


What is advantage of CMOS setup?

CMOS is a type of technology for constructing integrated circuits. One advantage of this setup is less waste heat compared to NMOS logic or transistor-transistor logic.


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