1
GATE ECE 1997
MCQ (Single Correct Answer)
+1
-0.3
The gate delay of an NMOS inverter is dominated by charge time rather than discharge time because
A
the driver transistor has a larger threshold voltage than the load transistor.
B
the driver transistor has larger leakage currents compared to the load transistor.
C
the load transistor has a smaller W/L ratio compared to the driver transistor
D
none of the above
2
GATE ECE 1997
MCQ (Single Correct Answer)
+1
-0.3
For the NMOS logic gate shown in figure, the logic function implemented is GATE ECE 1997 Digital Circuits - Logic Families Question 20 English
A
$$\overline {ABCDE} $$
B
$$(AB + \overline C ).(\overline {D + E} )$$
C
$$\overline {A.(B + C) + D.E} $$
D
$$(\overline {A + B} ).C + \overline D .\overline E $$
3
GATE ECE 1997
MCQ (Single Correct Answer)
+1
-0.3
In a J_K flip-flop, we have J=$$\overline Q $$ and K=1 (see figure). Assuming the flip-flop was intially cleared and then clocked for 6 pulses, the sequence at the Q output will be GATE ECE 1997 Digital Circuits - Sequential Circuits Question 72 English
A
010000
B
011001
C
010010
D
010101
4
GATE ECE 1997
MCQ (Single Correct Answer)
+1
-0.3
A signed integer has been stored in a byte using the 2's complement format. We wish to store the same integer in a 16-bit word. We should
A
copy the original byte to the less significant byte of the word and fill the more significant with zeros
B
copy the original byte to the more significant byte of the word and fill the less significant with zeros
C
copy the original byte to the less significant byte of the word and make each bit of the more significant byte equal to the most significant bit of the original byte
D
copy the original byte to the less significant byte as well as the more significant byte of the word