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Available in 300mil-wide Slim 24-pin Dual In-Line package
DESCRIPTION
The 74F181 is a 4-bit high-speed parallel Arithmetic Logic Unit
(ALU). Controlled by the four Function Select inputs (S0鈥揝3) and
the Mode Control input (M), it can perform all the 16 possible logic
operations or 16 different arithmetic operations on active-High or
active-Low operands. The Function Table lists these operations.
F0
F1 10
F2 11
GND 12
SF00193
TYPE
74F181
TYPICAL PROPAGATION DELAY
7.0ns
TYPICAL
SUPPLY CURRENT
(TOTAL)
43mA
ORDERING INFORMATION
DESCRIPTION
24-Pin Plastic Slim DIP (300 mil)
24-Pin Plastic SOL
COMMERCIAL RANGE
V
CC
= 5V
鹵10%,
T
amb
= 0擄C to +70擄C
N74F181N
N74F181D
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
PINS
A0鈥揂3
B0鈥揃3
M
S0鈥揝3
Cn
C
n+4
P
G
A=B
F0鈥揊3
NOTE:
DESCRIPTION
A operand inputs
B operand inputs
Mode control input
Function select input
Carry input
Carry output
Carry Propagate output
Carry Generate output
Compare output
Outputs
74F (U.L.) HIGH/LOW
1.0/3.0
1.0/3.0
1.0/1.0
1.0/4.0
1.0/5.0
50/33
50/33
50/33
OC/33
50/33
LOAD VALUE HIGH/LOW
20碌A(chǔ)/1.8mA
20碌A(chǔ)/1.8mA
20碌A(chǔ)/0.6mA
20碌A(chǔ)/2.4mA
20碌A(chǔ)/3.0mA
1.0mA/20mA
1.0mA/20mA
1.0mA/20mA
OC/20mA
1.0mA/20mA
One (1.0) FAST unit load is defined as: 20碌A(chǔ) in the High state and 0.6mA in the Low state.
OC = Open Collector
March 3, 1989
1
853鈥?351 95947