MIL-M-38510/338B
Device type 01
Mode select inputs |
Active LOW operands & Fn Outputs |
Active High operands & Fn Outputs |
|||||
83 |
82 |
81 |
80 |
Logic (M = H) |
Arithmetic** (M = L) (Cn = L) |
Logic (M = H) |
Arithmetic** (M = L) (Cn = H) |
L |
L |
L |
L |
A |
A minus 1 |
A |
A |
L |
L |
L |
H |
AB |
AB minus 1 |
A +B |
A + B |
L |
L |
H |
L |
A + B |
A B minus 1 |
A B |
A + B |
L |
L |
H |
H |
Logic 1 |
minus 1 |
Logic 0 |
minus 1 |
L |
H |
L |
L |
A +B |
A plus (A + B ) |
AB |
A plus AB |
L |
H |
L |
H |
B |
AB plus (A + B ) |
B |
(A + B) plus AB |
L |
H |
H |
L |
A ⊕B |
A minus B minus 1 |
A ⊕ B |
A minus B minus 1 |
L |
H |
H |
H |
A + B |
A + B |
A B |
A B minus 1 |
H |
L |
L |
L |
A B |
A plus (A + B) |
A + B |
A plus AB |
H |
L |
L |
H |
A ⊕ B |
A plus B |
A ⊕B |
A plus B |
H |
L |
H |
L |
B |
A B plus (A + B) |
B |
(A + B ) plus AB |
H |
L |
H |
H |
A + B |
A + B |
AB |
AB minus 1 |
H |
H |
L |
L |
Logic 0 |
A plus A* |
Logic 1 |
A plus A* |
H |
H |
L |
H |
A B |
AB plus A |
A + B |
(A + B) plus A |
H |
H |
H |
L |
AB |
A B minus A |
A + B |
(A + B ) plus A |
H |
H |
H |
H |
A |
A |
A |
A minus 1 |
* Each bit is shifted to the next more significant position.
** Arithmetic operations expressed is 2's complement notation. H = HIGH voltage level.
L = LOW voltage level.
FIGURE 2. Truth tables.
13
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