1 Assignment No State advantages of digital system over analog system. 2. Convert following numbers a. (138.56) 10 = (?) 2 = (?) 8 = (?) 16 b. ( ) 2 = (?) 10 = (?) 8 = (?) 16 c. ( ) 8 = (?) 2 = (?) 10 = (?) 16 d. (3A46) 16 = (?) 2 = (?) 8 = (?) 10 e. (857.75) 10 = (?) 2 = (?) 8 = (?) 16 f. ( ) 2 = (?) 10 = (?) 8 = (?) 16 g. (273.56) 8 = (?) 2 = (?) 10 = (?) 16 h. (6D7) 16 = (?) 2 = (?) 8 = (?) 10 i. (420.6) 10 = (?) 2 = (?) 8 = (?) 16 j. ( ) 2 = (?) 10 = (?) 8 = (?) 16 k. ( ) 8 = (?) 2 = (?) 10 = (?) 16 l. (8C47.AB) 16 = (?) 2 = (?) 8 = (?) 10 m. (876.47) 10 = (?) 2 = (?) 8 = (?) 16 n. (776.44) 10 = (?) 2 = (?) 8 = (?) 16 o. ( ) 2 = (?) 10 = (?) 8 = (?) 16
2 Assignment No Perform the Binary addition of following, a c b d Perform the Binary subtraction of following, a c b d Perform the Binary multiplication of following, a X 101 c X b X 10 d X Perform the Binary division of following, a by 11 c by 101 b by 10.1 d by Perform the Binary subtraction of following using 1 s complement method. a c b d Perform the Binary subtraction of following using 2 s complement method. a c b d Convert following decimal numbers into 8421 BCD code. a. 286 b. 807 c d Convert following decimal numbers into Excess-3 a. 40 b. 88 c. 64 d Perform addition using BCD addition method. a c b d Perform subtraction using BCD subtraction method. a c b d Perform the BCD subtraction of following using 9 s and 10 s complement method. a b c d Convert the following binary numbers into Gray code. a c b d Convert following 8421 BCD numbers into decimals. a c b d Convert the following Gray code numbers into binary numbers. a c b d
3 Assignment No Why NAND gate and NOR gate is called Universal Gate? 2. State and prove De-Morgan s first and second theorem. 3. List any four laws of Boolean algebra and prove it. 4. Prove that, ABC ABC AB AC AB. 5. Simplify following Boolean expression to minimum literals and draw logic diagram of reduced expression, Y A BC BC A BC ABC. 6. Draw logic diagram, truth table and circuit diagram for, a. Two input OR Gate b. Two input AND Gate c. Not Gate 7. Realize the following Boolean expressions using basic gates. a. Y AB BC AB. b. Y AB AC. 8. Solve the following expression, Y ABC(ABC ABC ABC). 9. Show that, (A A)(B A) B A B. 10. Simplify the following Boolean expression, Y A B A B AB A B. 11. Simplify the following Boolean expression, Y A(A C)(AB C). 12. Draw pin configuration of IC 7400, IC 7402, IC 7404, IC 7408, IC 7432, IC 7486 and IC State advantages of ECL Logic family. 14. List the advantages of CMOS logic family. 15. Define: a. Fan In b. Fan Out c. Propagation Delay d. Power Dissipation 16. Compare TTL and CMOS Logic family. 17. What is difference between totem pole output and open collector output in TTL logic family? 18. Draw and explain: a. Inverter using CMOS Logic family. b. NAND gate using open collector output. c. Two input OR gate using ECL Logic family 19. Differentiate between TTL and ECL logic family. 20. List any four characteristics of ECL logic family. 21. Explain concept of current sinking. 22. Explain Positive and Negative logic.
4 Assignment No Convert the following expressions into their standard forms; a. Y AB AC BC b. Y ( A B)( A C)( B C) c. Y AB AC BC d. Y AB AC BC 2. Convert following expressions into POS; a. f ( A, B, C, D) m(0,1,2,3,6,7,13,15) b. f ( A, B, C, D) m(0,1,2,3,4,7,10,15) 3. Minimize the following expressions using K-Map. a. f 1 ABC ABC ABC ABC b. f 2 ABC ABC ABC ABC c. f 2 ABCD ABCD ABCD ABCD ABCD ABCD d. f ( A, B, C) m(1,3,5,7) e. f ( X, Y, Z) m(0,2,4,6) f. f ( A, B, C, D) m(4,5,6,12,13,14) g. f ( P, Q, R, S) m(0,1,3,4,5,6,7,13,15) h. f ( A, B, C, D) m(0,2,4,6,7,8,10,12,13,15) i. f 1 m(1, 2,3,6,8,12,14,15) j. f ( A, B, C, D) m(0,1,2,3,6,7,13,15) k. f ( A, B, C, D) m(8,10,11,13,15) d(9,12,14) l. Y m(1,3,7,11,15) d(0, 2,5,8,14) m. f m(1,5,6,12,13,14) d(2,4) n. f ( A, B, C, D) m(1,4,7,10,13) d(5,14,15) o. f ( A, B, C, D) m(4,5,7,12,14,15) d(3,8,10) p. f ( W, X, Y, Z) m(1,3,7,11,15) d(0,2,5) q. f 1 M(0, 4,9,10,11,14,15) r. f ( A, B, C, D) M(0,1,2,3,4,10,11,15) s. f ( W, X, Y, Z) M(2,3,4,6,9,11,12,13) t. f ( A, B, C, D) M(6,7,8,9). d(10,11,12,13,14,15) 4. Design following circuits using K-map techniques a. Half adder b. Full adder c. Half Subtractor d. Full Subtractor e. Gray code to Binary code converter f. Binary to Gray code Converter 5. Draw 4 bit adder/substractor using IC 7483 and explain operation. 6. Draw full adder using two half adders and full Subtractor using two half Subtractors 7. Design BCD adder circuit using IC Explain rules for K-map reduction techniques.
5 Assignment No Give any two applications of multiplexers. 2. Describe how de-multiplexer can be used as decoder. 3. Draw 16:1 multiplexer using 8:1 multiplexer. 4. Draw general block diagram of multiplexer and explain. 5. Draw the circuit diagram of 1:4 de-multiplexer using logic gates. 6. Draw circuit diagram of 1:8 de-multiplexer with truth table. 7. Draw the circuit diagram of 1:2 de-multiplexer using logic gates. 8. Draw 32:1 multiplexer using 16:1 multiplexer and one 2:1 multiplexer. 9. Draw 64:1 multiplexer tree using 16:1 multiplexer. 10. Design 32:1 multiplexer using 8:1 multiplexer. 11. Draw 1:16 demux using 1:4 demux. 12. Draw 1:32 demux using 1:8 demux. 13. Implement following function using multiplexer a. Y m(2,3,5,6) b. Y m(1, 2,5,6,8,12) using 16:1 mux c. f ( A, B, C, D) m(0,2,5,7,11,15) d. f ( A, B, C, D) M(0,1,5,7,10,15) e. f ( A, B, C) m(0,2,5,7) f. f ( A, B, C) M(1,3,4,7) 14. Implement following functions using de-m a. Y1 f ( A, B, C, D) m(0,3,8,9,12) b. Y 2 f ( A, B, C, D) M(0,3,8,9,12) c. f ( A, B, C, D) m(0,1,2,3,5,7,8,9,11,14) d. f ( A, B, C) m(0,2,5,7) e. f ( A, B, C) M(1,3,4,7) 15. Explain the role of multiplexers in digital systems. 16. Draw pin configuration and function table of IC 74181, IC Draw internal diagram of IC and IC with its function table. 18. Explain Demux as decoder. 19. Draw block diagram of 8:3 priority encoder. Also write truth table. 20. Explain in detail Decimal to BCD encoder.
6 Karmaveer Bhaurao Patil Polytechnic, Panmalewadi, Varye, Satara Assignment No Write the difference between combinational and sequential logic circuit. 2. Design 4 bit asynchronous up-counter also write the truth table and draw the waveform. 3. Write the use of preset and clear terminal in a flip-flop. 4. What is the Race-around condition? How it will be eliminated in J-K flip-flop? 5. Draw the diagram of 3-bit twisted ring counter using J-K F/F. Also write its truth table. 6. With neat diagram write the working of serial in serial out shift register. 7. Draw S-R latch using NAND gates only, also write about the received output for each condition using truth table of S-R flip-flop. 8. Define modulus of counter. How many flip flops are required for mod 5 counter. 9. List the types of shift registers. 10. Draw clocked SR flip flop with preset and clear using gates. What is the drawback of SR flip flop. 11. Draw 3 bit asynchronous up counter with truth table and timing diagram. 12. Draw D and T flip flop using JK flip flop. 13. Draw 3 bit twisted ring counter using D flip flop. Give its timing diagram. 14. Write down excitation table for SR flip flop and T flip flop. 15. Design mode 6 counter using IC Draw 3 bit synchronous counter with truth table and timing diagram. 17. State the different triggering methods in digital circuit. 18. Draw the circuit diagram of 3 bit synchronous up counter with its truth table and explain its working. 19. How can IC 7490 be used as a decade counter with neat block diagram. 20. Design MOD 10 asynchronous up counter, with its truth table and timing diagram.
7 Karmaveer Bhaurao Patil Polytechnic, Panmalewadi, Varye, Satara Assignment No What is necessity of A/D and D/A converters? 2. What are the types of Data converters? 3. What are the methods used for D/A conversion? 4. Explain weighted resistor type D/A converter. 5. Explain R-2R ladder network method of D/A conversion with neat circuit diagram and derive the expression for output voltage. 6. Compare R-2R ladder and weighted type D/A converter. 7. State and define specifications of D/A conversion. 8. Draw block diagram of single slope A/D converter and explain operation. 9. Draw block diagram of dual slope A/D converter and explain operation. 10. Draw block diagram of successive approximation type A/D converter and explain operation. 11. What are advantages and disadvantages of successive approximation type DAC? 12. What are features and applications of PCF 8951? 13. Draw block diagram of IC 8951 and explain. 14. Compare successive approximation and dual slope ADC. 15. Explain characteristics of ADC.
8 Karmaveer Bhaurao Patil Polytechnic, Panmalewadi, Varye, Satara Assignment No Classify memories on the basis of principle of operation. 2. Differentiate between: 3. Explain flash memory. 4. Describe memory IC a. EPROM and EEPROM b. SRAM and DRAM c. Volatile and Non-volatile d. RAM and ROM 5. Draw functional block diagram of IC List any two features. 6. State different types ROM and explain any one type of ROM. 7. Draw diagram to illustrate the internal organization of memory. Explain significance of data, address, read and write signals. 8. Explain the role of memory in microprocessor system. Write different characteristics of memory. 9. What is static and dynamic RAM? 10. Draw static and dynamic RAM cell.