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Digital Circuits
Number System and Code Convertions
Marks 1Marks 2
Boolean Algebra
Marks 1Marks 2Marks 4Marks 5Marks 10
Logic Gates
Marks 1Marks 2Marks 5Marks 8
Combinational Circuits
Marks 1Marks 2Marks 5Marks 8Marks 10
Sequential Circuits
Marks 1Marks 2Marks 5Marks 8
Semiconductor Memories
Marks 1Marks 2
Logic Families
Marks 1Marks 2Marks 8
Analog to Digital and Digital to Analog Converters
Marks 1Marks 2
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1
GATE ECE 2013
MCQ (Single Correct Answer)
+2
-0.6
In the circuit shown below, Q1 has negligible collector-to-emitter saturation voltage and the diode drops negligible voltage across it under forward bias. If VCC is +5 V, X and Y are digital signals with 0 V as logic 0 and VCC as logic 1, then the Boolean expression for Z is GATE ECE 2013 Digital Circuits - Logic Families Question 11 English
A
XY
B
$$\overline XY$$
C
$$X\overline Y$$
D
$$\overline{XY}$$
2
GATE ECE 2008
MCQ (Single Correct Answer)
+2
-0.6
The logic function implemented by the following circuit at the terminal OUT is GATE ECE 2008 Digital Circuits - Logic Families Question 3 English
A
P NOR Q
B
P NAND Q
C
P OR Q
D
P AND Q
3
GATE ECE 2007
MCQ (Single Correct Answer)
+2
-0.6
The circuit diagram of a standard TTL NOT gate is shown in the figure. When $${V_i}$$= 2.5V, the modes of operation of the transistors will be: GATE ECE 2007 Digital Circuits - Logic Families Question 2 English
A

$${Q_1}$$ :reverse active

$${Q_2}$$; normal active

$${Q_3}$$; :saturation;

$${Q_4}$$ :cut-off

B

$${Q_1}$$ :reverse active

$${Q_2}$$: saturation

$${Q_3}$$: saturation

$${Q_4}$$ : cut-off

C

$${Q_1}$$ : normal active

$${Q_2}$$; cut-off

$${Q_3}$$; cut-off

$${Q_4}$$ : saturation

D

$${Q_1}$$ : :saturation

$${Q_2}$$: :saturation

$${Q_3}$$ :saturation

$${Q_4}$$ : normal active

4
GATE ECE 2003
MCQ (Single Correct Answer)
+2
-0.6
The DTL, TTL, ECL and CMOS families of digital ICs are compared in the following 4 columns GATE ECE 2003 Digital Circuits - Logic Families Question 4 English
A
P
B
Q
C
R
D
S
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Questions Asked from Marks 2
GATE ECE 2013 (1) GATE ECE 2008 (1) GATE ECE 2007 (1) GATE ECE 2003 (1) GATE ECE 1994 (1) GATE ECE 1987 (1)
GATE ECE Subjects
Signals and Systems
Network Theory
Control Systems
Digital Circuits
General Aptitude
Electronic Devices and VLSI
Analog Circuits
Engineering Mathematics
Microprocessors
Communications
Electromagnetics