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Integrated-Circuit Logic Families - Technical MCQs

Q1:

What type of logic circuit is shown below and what logic function is being performed?

A It is an NMOS AND gate.

B It is a CMOS AND gate.

C It is a CMOS NOR gate.

D It is a PMOS NAND gate.

ANS:C - It is a CMOS NOR gate.

Here the PMOS is connected is serious manner and also placed in pull up network so this CMOS circuit act as nor gate so answer is C.