NOR gate on Static CMOS and NOR gate Dynamic CMOS

Running head : STATIC AND DYNAMIC CMOS NOR GATE

Static and Dynamic CMOS NOR Gate

Andrew Kallis

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CMOS is known as Complementary Metal-Oxide Semiconductor . Some times it is also referred as complementary-symmetry metal-oxide-semiconductor because both N-type and P-type MOSFETs are used in CMOS for designing various types of logic . Nowadays CMOS is being used in the designing of integrated circuits and it has become an integral part of all types of memories . CMOS is not only used in digital circuits , but it is used

in analog circuits also . Small power dissipation and high noise immunity are major advantages of the CMOS over other semiconductor devices . Power dissipation does not take place in the static condition . A small amount Power got dissipated when switching take place in the circuit between on and off states . This is the reason behind the use of CMOS technology in the VLSI circuit design . CMOS is used to design various types of logics such as NOT , AND , OR , NAND , NOR , XOR and XNOR . But Inverter (NOT gate is treated as basic gate of CMOS technology . This will give a detailed of the static and dynamic CMOS NOR logic (Impressum , 2007

Construction of NOR logic using CMOS technology is not very difficult task . First we will see the working of normal NOR gate . Following is the symbol and the truth table of the NOR gate

Figure1 : Symbol of NOR gate (referred from CMOS NOR , 2009

Truth Table

The 2-input NOR...