Description
Product Attributes
TYPE
DESCRIPTION
Category
Integrated Circuits (ICs)
Logic
Series
74LS
Logic Type
Arithmetic Logic Unit
Supply Voltage
4.75V ~ 5.25V
Operating Temperature
0°C ~ 70°C
Mounting Type
Through Hole
Package / Case
24-DIP (0.600″, 15.24mm)
Base Product Number
74LS181
Pin Configuration:
Pin No
Pin Name
Description
1
B
0
‘
Active low Operand Input B
0
‘
2
A
0
‘
Active low Operand Input
3
S
3
Function Select Input S
3
4
S
2
Function Select Input S
2
5
S
1
Function Select Input S
1
6
S
0
Function Select Input S
0
7
C
n
Carry Input
8
M
Mode Control Input
9
F
0
‘
Function Output F
0
‘
10
F
1
‘
Function Output F
1
‘
11
F
2
‘
Function Output F
2
‘
12
GND
Ground Pin
13
F
3
‘
Function Output F
3
‘
14
A=B
Comparator Output
15
P’
Active low carry propagate
16
C
n+4
Carry Output
17
G’
Active low carry generator
18
B
3
‘
Active low Operand Input B
3
‘
19
A
3
‘
Active low Operand Input A
3
‘
20
B
2
‘
Active low Operand Input B
2
‘
21
A
2
‘
Active low Operand Input A
2
‘
22
B
1
‘
Active low Operand Input B
1
‘
23
A
1
‘
Active low Operand Input A
1
‘
24
V
CC
Chip Supply Voltage
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