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74F181 데이터 시트보기 (PDF) - Fairchild Semiconductor

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74F181
Fairchild
Fairchild Semiconductor Fairchild
74F181 Datasheet PDF : 10 Pages
1 2 3 4 5 6 7 8 9 10
Operation Table
a. All Input Data Inverted
b. All Input Data True
Logic
Arithmetic
S0 S1 S2 S3 (M=H) (M=L, C0=Inactive)
Arithmetic
(M=L, C0=Active)
LLLL
A
A minus 1
A
H L L L A•B
A B minus 1
AB
L H L L A+B
A B minus 1
AB
H H L L Logic 1minus 1 (2s comp.)
Zero
L L H L A+B
A plus (A + B)
A plus (A + B) plus 1
HLHL
B
A B plus (A + B) A B plus (A + B) plus 1
L H H L A B A minus B minus 1
A minus B
H H H L A+B
A+B
A + B plus 1
L L L H AB
A plus (A + B)
A plus (A + B plus 1
H L L H AB
A plus B
A plus B plus 1
LHLH
B
A B plus (A + B) A B plus (A + B) plus 1
H H L H A+B
A+B
A + B plus 1
L L H H Logic 0A plus A (2 × A) A plus A (2 × A) plus 1
H L H H AB
A plus A B
A plus A B plus 1
L H H H AB
A plus A B
A plus A B plus 1
HHHH
A
A
A plus 1
LLLL
A
A
A plus 1
H L L L A+B
A+B
A + B plus 1
L H L L AB
A+B
A + B plus 1
H H L L Logic 0minus 1 (2s comp.)
Zero
L L H L AB
A plus (A B)
A plus A B plus 1
HLHL
B
A B plus (A + B) A B plus (A + B) plus 1
L H H L A B A minus B minus 1
A minus B
H H H L AB
A B minus 1
AB
L L L H A+B
A plus A B
A plus A B plus 1
H L L H AB
A plus B
A plus B plus 1
LHLH
B
A B plus (A + B) A B plus (A + B) plus 1
H H L H AB
A B minus 1
AB
L L H H Logic 1A plus A (2 × A) A plus A (2 × A) plus 1
H L H H A+B
A plus (A + B)
A plus (A+B) plus 1
L H H H A+B
A plus (A + B)
A plus (A+B) plus 1
HHHH
A
A minus 1
A
3
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