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Birla Institute of Technology and Science, Pilani Distance Learning Programs Division MS Software Engineering in Collaboration with Wipro Technologies First Semester 2003 – 2004 Mid Semester Test Course No. : SEWP ZG 261 Course Name:- Digital Electronics & Microprocessors Nature of Exam :- Closed Book Exam Max Marks :- 40 Date:- 29 – 11 – 2003

Duration : 2 Hours

Note: • Please read the instructions on the first page of the main answer book • Please fill in the required details on the main answer book as soon as it’s given to you(Name,BITS ID No,Course Name,Course No.,Day and Date,Name of Exam) • Please Write No. of extra sheets used in the space marked “ No of supplementary Copies attached” on the main sheet. Answer all the questions. All questions carry equal Marks. 1. Simplify the following Boolean functions in product of sums a. F( W,X,Y,Z) = m0 + m2 + m5 + m6 + m7 + m8 + m10 b. F(A,B,C,D) = m1 + m3 + m5 + m7 + m13 + m15 2. Simplify the following Boolean functions using 4 variable k-map a. F(W,X,Y,Z) = m1 + m4 + m5 + m6 + m12 + m14 + m15 b. F(A,B,C,D) = m0 + m1 + m2 + m4 + m5 + m7 + m11 + m15 3. Implement the following using a 8 x 1 multiplexer F(A,B,C,D) = m1 + m3 + m4 + m11 + m12 + m13 + m14 + m15 4. Implement the following using a 3x8 decoder S(X,Y,Z) = m1 + m2 + m4 + m7 C(X,Y,Z) = m3 + m5 + m6 + m7 5. Implement the fallowing Boolean functions using 3: 8 decoder f1(A,B,C) = group of max terms M0,M2,M5 and f2(A,B,C) = group (pi) of max terms M1,M3,M7. 6. Convert the following: a. JK flip flop to SR flip flop b. SR flip flop to T flip flop 7. Design a MOD 6 synchronous counter by using JK flip flop. 8. Design a full adder.

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