Question

Draw the logic circuit using NMOS and PMOS for the boolean expression

Y = A’B’C + A’BC’ + AB’C’ + ABC

Answer #1

Course is VLSI
A CMOS inverter circuit uses NMOS and PMOS transistors with the
following characteristics:
Vth
mn/Cox
W/L
NMOS
0.3V
100 (mA/V2)
2
PMOS
0.3V
50 (mA/V2)
2
Both transistors are saturated for a certain input (gate)
voltage.
(a) Find an expression (value the input voltage as a function of
supply voltage, VDD (hint: current
through the NMOS and the PMOS are same).
(b) Plot ID vs VGS for
VDS = 1.0V in the
NMOS transistor above using excel....

Consider a CMOS inverter made using the same NMOS and PMOS
transistors.
KP=300uA/V^2 for NMOS, and KP=150uA/V^2 for PMOS.
W/L=2/1 VTO=0.5V for NMOS, and W/L=4 VTO=-0.5V for PMOS.
VDD=3V.
sketch NMOS IDS as a function of Vout and PMOS ISD as a
function of Vout for Vin=1V and Vin = 2V respectively, by hand
calculation.
label the numerical values of the critical points defining each
curve, and mark the point at which NMOS IDS = PMOS ISD.

Do you add the junction capacitors different when in series for
PMOS transistors compared to NMOS transistors? For ex. Have gate
logic where OUT = Abar*Bbar so would CL = junction cap of A +
junction cap of B for NMOS then for PMOS in series is CL =
(1/junction cap of A + 1/junction cap of B)^-1???

Why the CMOS logic is ratio less logic?
2. As a designer, you have asked to design a digital logic
circuit in which the inverter is one of the main building blocks.
For inverter design, you have to choose either depletion load NMOS
inverter or saturated enhancement load inverter. Which of the
inverter will you use in your design and why? Explain clearly?
3. Design of a 2 input XNOR gate using CMOS transistors,
a. Realize the 2 input XNOR...

Using Boolean
algebra, derive the minimum SOP expression for the
expression A’B’C+A’BC+ABC. please show the step by step derivation
of the expression

Assume that you are asked to design a logic circuit with the
following specifications, using K-map. The circuit has two inputs X
and Y and three outputs O0, O1 and O2. This circuit operates as
follows: (1) the output (O0) will be high when XY only, and (3) the
output (O2) will be high when X=Y only.
a)Create the truth table for this logic circuit.
b) Show the Karnaugh maps.
c) Draw the schematic, using logic gates.

Simplify the boolean equation:
C(A'B' + AB'(C + BD))
then draw the logic schematic

Assume that you are asked to design a logic circuit with the
following specifications, using
K-map. The circuit has two inputs X and Y and three outputs O0,
O1 and O2. This circuit
operates as follows: (1) the output (O0) will be high when
X<Y only, (2) the output (O1)
will be high when X>Y only, and (3) the output (O2) will be
high when X=Y only.
a. (3 points) Create the truth table for this logic circuit.
b. (3...

Write the Boolean equations and draw the logic diagram of the
circuit whose outputs are defined by the following truth table:
(Please explain your process and how you use the K-map)
f1
f2
a
b
c
1
1
0
0
0
0
1
0
0
1
1
0
0
1
0
1
1
0
1
1
1
0
1
0
0
0
1
1
0
1
1
0
1
1
1
W
X
Y
Z
F
0
0
0
0...

Draw a 4 way logic light controller circuit using JK flip flops
or D flip flops. Design the full logic description including state
truth table, output signal truth table.

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 16 minutes ago

asked 37 minutes ago

asked 41 minutes ago

asked 46 minutes ago

asked 51 minutes ago

asked 58 minutes ago

asked 59 minutes ago

asked 59 minutes ago

asked 59 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago