CD4511BC Datasheet, PDF (2/8 Pages) Fairchild Semiconductor – BCD-to-7 Segment Latch/Decoder/Driver

Truth Table
Inputs
Outputs
LE BI LT D C B A a b c d e f g Display
X X 0 XX X X 1 1 11 1 1 1
B
X 0 1 X X XX 0 0 0 0 00 0
01 1 0 0 0 01 1 1 1 1 10
0
0 11 0 0 0 1 01 1 0 0 0 0
1
0 1 10 0 1 0 1 10 1 1 0 1
2
0 1 1 00 1 1 1 1 11 0 0 1
3
0 1 1 0 1 00 0 1 1 0 01 1
4
01 1 0 1 0 11 0 1 1 0 11
5
0 11 0 1 1 0 00 1 1 1 1 1
6
0 1 10 1 1 1 1 11 0 0 0 0
7
0 1 1 10 0 0 1 1 11 1 1 1
8
0 1 1 1 0 01 1 1 1 0 01 1
9
01 1 1 0 1 00 0 0 0 0 00
0 11 1 0 1 1 00 0 0 0 0 0
0 1 11 1 0 0 0 00 0 0 0 0
0 1 1 1 10 1 0 0 0 00 0 0
01 1 1 1 1 00 0 0 0 0 00
0 11 1 1 1 1 00 0 0 0 0 0
1 1 1XXXX
*
*
X = Don’t Care
*Depends upon the BCD code applied during the 0 to 1 transition of LE.
Display
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