74LS181

Arithmetic logic unit

Schematic Symbol

Pin Configuration (24 pins)

Pin	Name	Type
1	B0	input
2	A0	input
3	S3	input
4	S2	input
5	S1	input
6	S0	input
7	Cn	input
8	M	input
9	F0	output
10	F1	output
11	F2	output
12	GND	power_in
13	F3	output
14	A=B	output
15	X	output
16	Cn+4	output
17	Y	output
18	B3	input
19	A3	input
20	B2	input
21	A2	input
22	B1	input
23	A1	input
24	VCC	power_in

Footprint

This symbol has no default footprint. It's typically a generic part where the footprint depends on the package you choose.

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