參數(shù)資料
型號(hào)： 74ACT11881
廠商： Texas Instruments, Inc.
英文描述： Arithmetic Logic Units/Function Generators(算術(shù)邏輯單元/函數(shù)發(fā)生器)
中文描述： 算術(shù)邏輯單元/函數(shù)發(fā)生器（算術(shù)邏輯單元/函數(shù)發(fā)生器）
文件頁(yè)數(shù)： 4/14頁(yè)
文件大?。?/td> 151K
代理商： 74ACT11881
54ACT11881, 74ACT11881
ARITHMETIC LOGIC UNITS/FUNCTION GENERATORS
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
4
Table 1
SELECTION
ACTIVE-LOW DATA
M = L; ARITHMETIC OPERATIONS
Cn = L (no carry)
F = A MINUS 1
F = AB MINUS 1
F = AB MINUS 1
F = MINUS 1 (2’s COMP)
F = A PLUS (A + B)
F = AB PLUS (A + B)
F = A MINUS B MINUS 1
F = A + B
F = A PLUS (A + B)
F = A PLUS B
F = AB PLUS (A + B)
F = (A + B)
F = A PLUS A
F = AB PLUS A
F = AB PLUS A
F = A
M = H
S3
L
L
L
L
L
L
L
L
H
H
H
H
H
H
H
H
S2
L
L
L
L
H
H
H
H
L
L
L
L
H
H
H
H
S1
L
L
H
H
L
L
H
H
L
L
H
H
L
L
H
H
S0
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
LOGIC FUNCTIONS
F = A
F = AB
F = A + B
F = 1
F = A + B
F = B
F = A
⊕
B
F = A
+
B
F = AB
F = A
⊕
B
F = B
F = A + B
F = 0
F = AB
F = AB
F = A
Cn = H (with carry)
F = A
F = AB
F = AB
F = ZERO
F = A PLUS (A + B) PLUS 1
F = AB PLUS (A + B) PLUS 1
F = A MINUS B
F = A + B PLUS 1
F = A PLUS (A + B) PLUS 1
F = A PLUS B PLUS 1
F = AB PLUS (A + B) PLUS 1
F = (A + B) PLUS 1
F = A PLUS A PLUS 1
F = AB PLUS A PLUS 1
F = AB PLUS A PLUS 1
F = A PLUS 1
Table 2
SELECTION
ACTIVE-HIGH DATA
M = L; ARITHMETIC OPERATIONS
Cn = H (no carry)
F = A
F = A + B
F = A + B
F = MINUS 1 (2’s COMP)
F = A PLUS AB
F = (A + B) PLUS AB
F = A MINUS B MINUS 1
F = AB MINUS 1
F = A PLUS AB
F = A PLUS B
F = (A + B) PLUS AB
F = AB MINUS 1
F = A PLUS A
F = (A + B) PLUS A
F = (A + B) PLUS A
F = A MINUS 1
M = H
S3
L
L
L
L
L
L
L
L
H
H
H
H
H
H
H
H
S2
L
L
L
L
H
H
H
H
L
L
L
L
H
H
H
H
S1
L
L
H
H
L
L
H
H
L
L
H
H
L
L
H
H
S0
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
LOGIC FUNCTIONS
F = A
F = A + B
F = AB
F = 0
F = AB
F = B
F = A
⊕
B
F = AB
F = A + B
F = A
⊕
B
F = B
F = AB
F = 1
F = A + B
F = A + B
F = A
Cn = L (with carry)
F = A PLUS 1
F = (A + B) PLUS 1
F = (A + B) PLUS 1
F = ZERO
F = A PLUS AB PLUS 1
F = A PLUS AB PLUS 1
F = A MINUS B
F = AB
F = A PLUS AB PLUS 1
F = A PLUS B PLUS 1
F = (A + B) PLUS AB PLUS 1
F = AB
F = A PLUS A PLUS 1
F = (A + B) PLUS A PLUS 1
F = (A + B) PLUS A PLUS 1
F = A
Each bit is shifted to the next more significant position.
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