The output equation for the following CMOS circuit is:
The output equation for the following CMOS circuit is:
A. Y = A̅ + B̅
B. <span class="math-tex">\(Y = \overline {A.B}\)</span>
C. <span class="math-tex">\(Y = \overline {A + B}\)</span>
D. Y = A̅ . B̅
Please scroll down to see the correct answer and solution guide.
Right Answer is: C
SOLUTION
CMOS logic circuit is an extension of a CMOS inverter. It consists of two network transistors, a pull-down network (PDN) constructed of an n-MOS and Pull-up Network (PUN) constructed of P-MOS.
PDN: Since nMOS conducts when the signal gate is high, PDN is activated when the inputs are high.
PUN: It comprises PMOS and conducts when the input signal gate is low.
The PDN and PUN are connected in parallel to form OR logic function and they are connected in series to form AND logic as shown:
Application:
\(\bar Y = A + B\)
\(Y = \overline {A + B}\)
\(Y = \bar A \cdot \bar B\)
