ARITHMETIC LOGIC UNITS/FUNCTION GENERATORS

74181

ic logic

The SN54/74LS181 is a 4-bit Arithmetic Logic Unit (ALU) capable of performing various logic and arithmetic operations on two variables.

In stock

Specifications

Operating Voltage: 5.0 V to 5.5 V (VCC) for both SN54 and SN74 variants. V
Supply Current: 32 mA (ICC) for SN54 variant, 34 mA (ICC) for SN74 variant at maximum VCC. mA
Temperature Range: -55°C to 125°C (TA) °C

Pin	Name	Functions	Notes
24	VCC	POWER	Supply Voltage
12	GND	GND	Ground
1	A0B0	GPIO	Operand (Active LOW) Inputs
2	A1B1	GPIO	Operand (Active LOW) Inputs
3	A2B2	GPIO	Operand (Active LOW) Inputs
4	A3B3	GPIO	Operand (Active LOW) Inputs
5	S0	GPIO	Function — Select Inputs
6	S1	GPIO	Function — Select Inputs
7	S2	GPIO	Function — Select Inputs
8	S3	GPIO	Function — Select Inputs
9	M	GPIO	Mode Control Input
10	Cn	GPIO	Carry Input
11	F0	GPIO	Function (Active LOW) Outputs
13	F1	GPIO	Function (Active LOW) Outputs
14	F2	GPIO	Function (Active LOW) Outputs
15	F3	GPIO	Function (Active LOW) Outputs
16	A = B	GPIO	Comparator Output
17	G	GPIO	Carry Generate (Active LOW) Output
18	P	GPIO	Carry Propagate (Active LOW) Output
19	Cn+4	GPIO	Carry Output

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74181

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