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|  MIL-M-38510/338B
Device type 01
Active LOW operands
Active High operands
Mode select inputs
& Fn Outputs
& Fn Outputs
Logic
Arithmetic**
Logic
Arithmetic**
S3
S2
S1
S0
(M = H)
(M = L) (Cn = L)
(M = H)
(M = L) (Cn = H)
L
L
L
L
A minus 1
A
A
A
A +B
AB minus 1
L
L
L
H
A+B
AB
L
L
H
L
A +B
AB
A B minus 1
A+ B
L
L
H
H
Logic 1
minus 1
Logic 0
minus 1
A +B
L
H
L
L
A plus (A + B )
A plus A B
AB
L
H
L
H
AB plus (A + B )
(A + B) plus A B
B
B
A ⊕B
A ⊕B
L
H
H
L
A minus B minus 1
A minus B minus 1
L
H
H
H
A+ B
A+ B
AB
A B minus 1
H
L
L
L
A plus (A + B)
A plus AB
AB
A +B
A ⊕B
A ⊕B
H
L
L
H
A plus B
A plus B
H
L
H
L
B
B
A B plus (A + 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*
(A + B) plus A
H
H
L
H
AB plus A
AB
A+ B
A+B
H
H
H
L
AB
(A + B ) plus A
A B minus 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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