74HCT181N View Datasheet(PDF) - Philips Electronics
Part Name
Description
View to exact match
74HCT181N Datasheet PDF : 20 Pages
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Philips Semiconductors
4-bit arithmetic logic unit
PIN DESCRIPTION
PIN NO.
1, 22, 20, 18
2, 23, 21, 19
6, 5, 4, 3
7
8
9, 10, 11, 13
12
14
15
16
17
24
SYMBOL
B0 to B3
A0 to A3
S0 to S3
Cn
M
F0 to F3
GND
A=B
P
Cn+4
G
VCC
Product speciļ¬cation
74HC/HCT181
NAME AND FUNCTION
operand inputs (active LOW)
operand inputs (active LOW)
select inputs
carry input
mode control input
function outputs (active LOW)
ground (0 V)
comparator output
carry propagate output (active LOW)
carry output
carry generate output (active LOW)
positive supply voltage
ok, halfpage
2 A0
23 A1
21 A2
19 A3
1 B0
22 B1
20 B2
18 B3
7 Cn
6 S0
5 S1
4 S2
3 S3
8M
F0 9
F1 10
F2 11
F3 13
Cn+4 16
A=B 14
G 17
P 15
MBK219
Fig.4 Functional diagram.
1998 Jun 10
Fig.5 Active HIGH operands - active LOW operands.
4
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