HCC4532B Datasheet, PDF (3/15 Pages) STMicroelectronics – 8-BIT PRIORITY ENCODER

LOGIC DIAGRAM
HCC/HCF4532B
TRUTH TABLE
Input
Output
E_I
D7
D6
D5
D4
D3
D2
D1
D0 GS Q2 Q 1 Q0 E_O
0
X
X
X
X
X
X
X
X
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
X
X
X
X
X
X
X
1
1
1
0
0
1
0
1
X
X
X
X
X
X
1
1
1
1
0
1
0
0
1
X
X
X
X
X
1
1
0
0
0
1
0
0
0
1
X
X
X
X
1
1
0
1
0
1
0
0
0
0
1
X
X
X
1
0
1
1
0
1
0
0
0
0
0
1
X
X
1
0
1
0
0
1
0
0
0
0
0
0
1
X
1
0
0
1
0
1
0
0
0
0
0
0
0
1
1
0
0
0
0
X ≡ Don’t Care
Logic 1 ≡ High
Logic 0 ≡ Low
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