7-seg-decoder

7-seg-decoder - Multiple-Output Example: BCD to 7-Segment...

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1 Digital Design Copyright © 2006 Frank Vahid Multiple-Output Example: BCD to 7-Segment Converter a = w’x’y’z’ + w’x’yz’ + w’x’yz + w’xy’z + w’xyz’ + w’xyz + wx’y’z’ + wx’y’z abcdefg = 1111110 0110000 1101101 a f b d g e c (b) (a) b = w’x’y’z’ + w’x’y’z + w’x’yz’ + w’x’yz + w’xy’z’ + w’xyz + wx’y’z’ + wx’y’z
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2 Digital Design Copyright © 2006 Frank Vahid Use of don’t care: BCD to 7-Segment Converter x x 1 1 1 1 x x 0 1 1 1 x x 1 0 1 1 x x 0 0 1 1 x x 1 1 0 1 x x 0 1 0 1 1 1 1 0 0 1 1 1 0 0 0 1 1 1 1 1 1 0 0 1 0 1 1 0 0 1 1 0 1 0 1 0 0 0 1 0 1 1 1 1 0 0 1 1 0 1 0 0 1 0 1 0 0 0 1 1 0 0 0 0 g f e d c b a z y x w a = w’x’y’z’ + w’x’yz’ + w’x’yz + w’xy’z + w’xyz’ + w’xyz + wx’y’z’ + wx’y’z abcdefg = 1111110 0110000 1101101 a f b d g e
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7-seg-decoder - Multiple-Output Example: BCD to 7-Segment...

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