74LS181 DIP-24 4-Bit Arithmetic Logic Unit IC (ALU, TTL, 5V)

Description -

The 74LS181 DIP is a TTL logic integrated circuit that functions as a 4-bit Arithmetic Logic Unit (ALU) and Function Generator in a 24-pin Dual Inline Package (DIP). It belongs to the 74LS Low Power Schottky logic family and is designed to perform high-speed arithmetic and logic operations in digital systems.

The IC can execute 16 arithmetic functions and 16 logic functions on two 4-bit data inputs. A dedicated mode control input selects between arithmetic and logic operations, while carry look-ahead circuitry enables fast arithmetic processing and cascading of multiple ALUs for larger word lengths. The 74LS181 is widely used in CPU design, digital processing, educational electronics, and embedded systems.

Key Features -

• 4-bit Arithmetic Logic Unit (ALU)

• Performs 16 arithmetic operations

• Performs 16 logic operations

• Internal look-ahead carry circuitry

• Cascadable for wider data paths

• Mode control for arithmetic or logic operation

• Low Power Schottky technology

• Standard DIP-24 package

Specifications -

• Product type - TTL Logic IC

• IC Model - 74LS181

• Logic Function - 4-Bit Arithmetic Logic Unit and Function Generator

• Package type - DIP-24

• Logic family - 74LS TTL

• Operating voltage - 4.75V to 5.25V DC

• Arithmetic functions - 16

• Logic functions - 16

• Typical addition time - 24ns

• Typical logic operation time - 13ns

• High-level output current - -0.8mA

• Low-level output current - 16mA

• Input high voltage - 2.0V Minimum

• Operating temperature - 0C to 70C

Applications -

• CPU and processor design

• Arithmetic processing circuits

• Digital logic systems

• Embedded systems

• Educational electronics

• Industrial automation

• Digital signal processing

• Computer architecture projects