74HCT181N3 View Datasheet(PDF) - Philips Electronics

Part Name

Description

Manufacturer

74HCT181N3

4-bit arithmetic logic unit

Philips Electronics 

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 specification

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

Share Link: