Q261
Open questionA number is expressed in binary two's complement as 10011. Its decimal equivalent value is
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ECE · all questionsDigital Electronics
Digital Electronics
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Q262
Open questionWhich one of the following is not a characteristic of RTL logic families?
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Q263
Open questionWhich of the following are universal gates?
1. AND
2. NAND
3. OR
4. NOR
5. NOT
1. AND
2. NAND
3. OR
4. NOR
5. NOT
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Q264
Open questionCombinational circuit
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Q265
Open questionTwo D-flip-flops, as shown below, are to be connected as a synchronous counter that goes through the following Q1Q0 sequence
00 → 01 → 11 → 10 → 00 → . . . . .
The inputs D0 and D1 respectively should be connected as
00 → 01 → 11 → 10 → 00 → . . . . .
The inputs D0 and D1 respectively should be connected as
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Q266
Open questionThe Boolean expression simplifies to
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Q267
Open questionGiven VOH = 4 V, VIH = 3.2 V, VIL = 2 V, VOL = 1.5 V, find noise margin?
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Q268
Open questionIn the above diagram, find out the correct expression of Y.
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Q269
Open questionThe simplified form of the Boolean expression AB + A(B + C) + B(B + C) is given by
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Q270
Open questionThe figure below shows a multiplexer where S1 and S0 are the select lines. I0 to I3 are the input data lines, EN is the enable line, and F(P, Q, R) is the output. F is
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Q271
Open questionWhich of the following is the Boolean function for Majority Voting, assuming A, B, C are inputs and Y is output?
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Q272
Open questionFlash ADC is
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Q273
Open questionFind the faulty even parity code
1. 100110010
2. 011101010
3. 10111111010001010
1. 100110010
2. 011101010
3. 10111111010001010
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Q274
Open questionIn Boolean Algebra A. is equal to
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Q275
Open questionThe inverter 74 AL S01 has the following specifications:
IOH max = -0.4 mA, IOL max = 8 mA, IIH max = 20 µA, IIL max = -0.1 mA.
The fan out based on the above will be
IOH max = -0.4 mA, IOL max = 8 mA, IIH max = 20 µA, IIL max = -0.1 mA.
The fan out based on the above will be
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Q276
Open questionWhat is the hexadecimal equivalent of this binary number (1110)2?
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Q277
Open questionIn 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, the Boolean expression for Z is
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Q278
Open questionConsider the following digital circuits:
1. Multiplexers
2. Read Only Memories
3. D-latch
4. Circuit as shown
Which of these come under the class of combinational circuits?
1. Multiplexers
2. Read Only Memories
3. D-latch
4. Circuit as shown
Which of these come under the class of combinational circuits?
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Q279
Open questionIf (2.3)base 4 + (1.2)base 4 = (y)base 4, what is the value of y?
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Q280
Open questionBy using only 4 : 1 MUX, it is possible to realize:
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