SN74LS381AN

Specialty Logic Overview

The SN74LS381AN is a quad 4-bit arithmetic logic unit (ALU) manufactured by Texas Instruments. It operates within a supply voltage range of 4.75 V to 5.25 V and supports a propagation delay of 23 ns. The device features internal carry and higher-order lookahead capabilities, enabling efficient execution of three distinct logic and arithmetic operations. Designed for through-hole mounting, it utilizes a 20-pin plastic dual in-line package (PDIP). The component functions reliably across an operating temperature range from 0°C to +70°C.

Specialty Logic Feature Summary

• Integrates internal carry and higher-order lookahead mechanisms to support rapid multi-bit arithmetic processing.
• Capable of executing three specific logic and arithmetic operations simultaneously across four bits.
• Provides TTL-compatible input and output voltage levels for standard digital interfacing.

Specialty Logic Applications

• High-speed arithmetic calculations requiring internal carry lookahead
• Control units in microprocessor-based systems
• Digital signal processing circuits

Specialty Logic Procurement Notes

Verify the exact part number against official Texas Instruments documentation to confirm the ALU function and PDIP-20 package type. Ensure that the required operating temperature range and TTL compatibility align with your system specifications before procurement.

Specialty Logic Selection Notes

Select this component when a dedicated 4-bit ALU with internal carry lookahead is required for arithmetic operations. Consider the 23 ns propagation delay and 20-pin DIP form factor for compatibility with existing through-hole PCB layouts and timing constraints.

Specialty Logic Part Context

This component belongs to the SN74LS series of logic integrated circuits, specifically designed as an arithmetic logic unit. It provides essential computational capabilities for digital systems, distinguishing itself from standard logic gates by its ability to perform complex arithmetic functions with internal carry lookahead.

Specialty Logic FAQ

What specific operations does the SN74LS381AN support?

The SN74LS381AN is capable of performing three specific logic and arithmetic operations, facilitated by its internal carry and higher-order lookahead features.

What is the maximum propagation delay for this ALU?

The maximum propagation delay for the SN74LS381AN is 23 ns.