Homework 4

# Homework 4 - multiplexers I0 I1 S Y I0 I1 S Y I0 I1 S Y A B...

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ECE 200 Digital Logic Systems Drexel University Fall 2010-2011 Homework #4 Due: Wednesday November 2nd, 2011 at beginning of class (11:00AM) Show all work. Points will be removed for answers without work. Problems are from Chapter 2.11 (p100) and Chapter 5.10 (p348) of the Marcovitz Text (3 rd Edition). It is your responsibility to do the correct problems if you are using a different edition of the book. Problems from different edition of the text will be marked incorrect. Marcovitz Text: 1) 2-19 (only a, b, c) 2) 5-5 3) 5-13 (hint, A,B,C and D are the inputs, and F is the output. F is in terms of 0, 1, N-Z) 4) 5-14 (hint, A and B are the inputs, and F is the output. F in terms of W-Z) 5) 5-16 (only b, c) 6) 5-17 (only b, c) Other Problems: 7) Fill out a truth table for the following circuit. Note that the blocks are 2x1

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Unformatted text preview: multiplexers. I0 I1 S Y I0 I1 S Y I0 I1 S Y A B C D S0 S1 Out 8) Determine the values of A?, B?, C?, D?, E?, F?, G? and H?, such that the value “Z” is placed onto the 1-bit bus line, F. For the 2x4 decoders, B is the most significant bit (MSB). For the 8x3 encoder (this is not a priority encoder, therefore one and only one input should be asserted), I7 is the MSB input and Y2 is the MSB output. Give the values as 0, 1, or X (don’t care). Use don’t cares when they are valid. Give reasoning for your choices. F X Y Z I0 I6 I1 I5 I2 I4 I3 I7 Y0 Y1 Y2 O0 O1 O2 O3 A B En O0 O1 O2 O3 A B En I0 I1 S 1 E? C? H? F? I0 I1 S I0 I1 S G? B? D? A?...
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Homework 4 - multiplexers I0 I1 S Y I0 I1 S Y I0 I1 S Y A B...

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