Attempt any SIX questions. [6x5=30]
11.Subtract: 675.6 – 456.4 using both 10's and 9's complement.[5]
12.What is universal logic gate? Realize NAND and NOR as an universal logic gates. [1+2+2]
13. Simplify (using K- map) the given Boolean function F in both SOP and POS using don't care conditions D: B'CD' + A'BC'D F=B'C'D' + BCD' + ABCD' [2+3]
14.Define encoder: Draw logic diagram and truth table of octal - to - binary encoder. [1 + 4]
15.What is D flip-flop? Explain clocked RS flip-flop with its logic diagram and truth table.[1+4]
16.Design MOD - 5 counter with state and timing diagram.[2+1+2]
17. Design a 4 - bit serial into parallel- out shift register with timing diagram. [3+2]
Attempt any TWO questions.[2x10=20]
18. Write difference between PLA and PAL. Design a PLA circuit with given functions.
F1 (A, B, C)=Σ (2, 3, 5)
F2 (A, B, C)=Σ (0, 4, 5, 7).
Design PLA program table also.[3+7]
19.Define D flip-flop. Design a Master-slave flip-flop by using JK flip-flop along with its circuit diagram and truth table. [2+8]
20.Write down the difference between asynchronous and synchronous counter. Design a 4-bit binary ripple counter along with its circuit, state and timing diagram. [3+7]