hw25_SLN - ECE 211 HW 25 SOLUTIONS p 1/10...

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ECE 211 HW 25 SOLUTIONS p 1/10 //home/vdimitrov/24977/30a85cb21fa2c61d0dbff6530b6faab863cfac44.doc HW Set 25 SOLUTIONS 1. Use an 8-to-1 multiplexer to realize the 3-variable function F(A,B,C) = A · (B C). The assertion levels are: F, C active-High; A, B active-Low. Connect A' to the s2 input of the multiplexer, B' to s1, C to s0. Solution: s2 s1 s0 z A B C F 0 0 0 x0 1 1 0 1 0 0 1 x1 1 1 1 0 0 1 0 x2 1 0 0 0 0 1 1 x3 1 0 1 1 1 0 0 x4 0 1 0 0 1 0 1 x5 0 1 1 0 1 1 0 x6 0 0 0 0 1 1 1 x7 0 0 1 0
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ECE 211 HW 25 SOLUTIONS p 2/10 2. Use a 4-to-1 line multiplexer to realize the 3-variable function F(A,B,C) = Σ m( 0, 1, 2, 5, 6). The assertion levels are: A, C, F active-Low; B active-High. Connect B to the s1 input of the multiplexer, C' to the s0 input. Solution: s1 s0 z B C F F' 0 0 x0 0 1 1 0 0 1 x1 0 0 A' A 1 0 x2 1 1 0 1 1 1 x3 1 0 1 0
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ECE 211 HW 25 SOLUTIONS p 3/10 3. Use an 8-to-1 line multiplexer to realize the 4-variable function F whose map is given below. The assertion levels are: A, B, D active-Low; F, C active-High. Connect A' to the s2 input of the multiplexer, B' to s1, C to s0. Solution: s2 s1 s0 z A B C F 0 0 0 x0 1 1 0 0 (or D' ) 0 0 1 x1 1 1 1 1 (or D ) 0 1 0 x2 1 0 0 D 0 1 1 x3 1 0 1 0 ( or D ) 1 0 0 x4 0 1 0 1 1 0 1 x5 0 1 1 0 1 1 0 x6 0 0 0 D 1 1 1 x7 0 0 1 D'
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This homework help was uploaded on 04/17/2008 for the course ECE 211 taught by Professor Nestor during the Fall '07 term at Lafayette.

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hw25_SLN - ECE 211 HW 25 SOLUTIONS p 1/10...

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