74ACT11181 datasheet(4/14 Pages) TI1

Part #	74ACT11181

Description	ARITHMETIC LOGIC UNIT/FUNCTION GENERATOR

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74ACT11181

ARITHMETIC LOGIC UNIT/FUNCTION GENERATOR

SCAS086 − D3200, OCTOBER 1989 − REVISED APRIL 1993

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

POST OFFICE BOX 1443

• HOUSTON, TEXAS 77001

2−4

Table 1

SELECTION

ACTIVE-LOW DATA

SELECTION

M = H

M = L; ARITHMETIC OPERATIONS

S3

S2

S1

S0

M = H

LOGIC

FUNCTIONS

Cn = L

(no carry)

Cn = H

(with carry)

L

F = A

F = A MINUS 1

F = A

L

LL

H

F = AB

F = AB MINUS 1

F = AB

L

H

L

F = A + B

F = AB MINUS 1

F = AB

L

H

F = 1

F = MINUS 1 (2’s COMP)

F = ZERO

L

H

L

F = A + B

F = A PLUS (A + B)

F = A PLUS (A + B) PLUS 1

L

H

L

H

F = B

F = AB PLUS (A + B)

F = AB PLUS (A + B) PLUS 1

L

H

L

F = A

⊕ B

F = A MINUS B MINUS 1

F = A MINUS B

L

H

F = A

+ B

F = A + B

F = (A + B) PLUS 1

H

L

F = AB

F = A PLUS (A + B)

F = A PLUS (A + B) PLUS 1

H

L

H

F = A

⊕ B

F = A PLUS B

F = A PLUS B PLUS 1

H

L

H

L

F = B

F = AB PLUS (A + B)

F = AB PLUS (A + B) PLUS 1

H

L

H

F = A + B

F = (A + B)

F = (A + B) PLUS 1

H

L

F = 0

F = A PLUS A{

F = A PLUS A PLUS 1

H

L

H

F = AB

F = AB PLUS A

F = AB PLUS A PLUS 1

H

L

F = AB

F = AB PLUS A

F = AB PLUS A PLUS 1

H

F = A

F = A PLUS 1

Table 2

SELECTION

ACTIVE-HIGH DATA

SELECTION

M = H

M = L; ARITHMETIC OPERATIONS

S3

S2

S1

S0

M = H

LOGIC

FUNCTIONS

Cn = H

(no carry)

Cn = L

(with carry)

L

F = A

F = A PLUS 1

L

H

F = A + B

F = (A + B) PLUS 1

L

H

L

F = AB

F = A + B

F = (A + B) PLUS 1

L

H

F = 0

F = MINUS 1 (2’s COMP)

F = ZERO

L

H

L

F = AB

F = A PLUS AB

F = A PLUS AB PLUS 1

L

H

L

H

F = B

F = (A + B) PLUS AB

F = (A + B) PLUS AB PLUS 1

L

H

L

F = A

⊕ B

F = A MINUS B MINUS 1

F = A MINUS B

L

H

F = AB

F = AB MINUS 1

F = AB

H

L

F = A + B

F = A PLUS AB

F = A PLUS AB PLUS 1

H

L

H

F = A

⊕ B

F = A PLUS B

F = A PLUS B PLUS 1

H

L

H

L

F = B

F = (A + B) PLUS AB

F = (A + B) PLUS AB PLUS 1

H

L

H

F = AB

F = AB MINUS 1

F = AB

H

L

F = 1

F = A PLUS A{

F = A PLUS A PLUS 1

H

L

H

F = A + B

F = (A + B) PLUS A

F = (A + B) PLUS A PLUS 1

H

L

F = A + B

F = (A + B) PLUS A

F = (A + B) PLUS A PLUS 1

H

F = A

F = A MINUS 1

F = A

† Each bit is shifted to the next more significant position.

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