PHYS345 Electricity and Electronics

Seven segment display    Decoder for segment a

Layout of 7-segment decoder

   DCBA  a
0
1
2
3
4

5
6
7
8
9

  0
0
0
0
0

0
0
0
1
1

0
0
0
0
1

1
1
1
0
0

0
0
1
1
0

0
1
1
0
0

0
1
0
1
0

1
0
1
0
1

  1
0
1
1
0

1
1
1
1
1

       
 BA 00  01  11  10 
DC\
 00    1 0 1 1
 01    0 1 1 1
 11    x x x x
 10    1 1 x x


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"http://www.physics.udel.edu/~watson/phys345/class/17-decoder-a.html"
Last updated Oct. 29, 1998.
Copyright George Watson, Univ. of Delaware, 1998.