Question Paper: Digital Logic Design And Analysis Question Paper - Jun 19 - Computer Engineering (Semester 3) - Mumbai University (MU)
0

## Digital Logic Design And Analysis - Jun 19

### Computer Engineering (Semester 3)

Total marks: 80
Total time: 3 Hours
INSTRUCTIONS
(1) Question 1 is compulsory.
(2) Attempt any three from the remaining questions.
(3) Draw neat diagrams wherever necessary.

Attempt any 5

1.a. Convert (451.43)10 into octal, binary and hexadecimal and base 7.
(4 marks) 00

1.b. Subtract using 1's and 2's complement method (73)10 - (49)10.
(4 marks) 00

1.c Perform (52)10 -(68)10 in BCD using 9’s complement.
(4 marks) 00

1.d. State De Morgan’s theorem. Prove OR-AND configuration is equivalent to NOR-NOR configuration.
(4 marks) 00

1.e. Encode the data bits 111010001 using Hamming code.
(4 marks) 00

1.f. Explain SOP and POS and solve the following using K-Map F(A,B,C,D)=πM(1,3,5,6,7,10,11)+d(2,4).
(4 marks) 00

1.g. Explain lockout condition. How can it be avoided.
(4 marks) 00

2.a. Reduce equation using Quine McCluskey method and realize circuit using basic gates. F(A,B,C,D) = ∑m (1,5,6,12,13,14) + d(2,4)
(10 marks) 00

2.b. Design 4-bit BCD subtractor using IC 7483.
(10 marks) 00

3.a. Implement the following using only one 8:1 Mux. F(A,B,C,D) = ∑m (0,2,4,6,8,10,12,14)
(5 marks) 00

3.b. Design a Full Subtractor using only NAND gates.
(5 marks) 00

3.c. Design a logic circuit to convert 4-bit gray code to its corresponding BCD code.
(10 marks) 00

4.a. Compare different logic families with respect to fan in ,fan out, speed, Propagation delay and power dissipation.
(5 marks) 00

4.b. Implement 3 bit binary to gray code converter using Decoder.
(5 marks) 00

4.c. Explain 4 bitbidirectional shift register.
(10 marks) 00

5.a. Design mod 13 synchronous counter using T flipflop.
(10 marks) 00

5.b. Convert SR flipflop to JK flipflop and D flipflop.
(10 marks) 00

Write short note on (any four)

6.a. ALU
(5 marks) 00

6.b. 3 bit Up/Down Asynchronous Counter
(5 marks) 00

6.c. Octal to Binary Encoder
(5 marks) 00

6.d. 4-bit Universal shift register
(5 marks) 00

6.e. VHDL
(5 marks) 00

 modified 5 months ago  • written 5 months ago by Akshay Metry • 0