SN74LS441DW

Overview

The SN74LS441DW is a quadruple bidirectional bus transceiver from the Texas Instruments LS logic family. It features four independent 1-bit transceivers with tri-state outputs, enabling data transfer between two buses. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports surface-mount installation in a 20-pin SOIC package.

Feature Summary

• Provides four independent bidirectional data paths for bus interconnection
• Features tri-state outputs to isolate disconnected buses
• Supports low-power Schottky TTL logic levels

Applications

• Bidirectional data bus transmission systems
• Memory-to-I/O data transfer interfaces
• General-purpose bus exchange applications

Procurement Notes

Verify the specific suffix 'DW' confirms the 20-pin SOIC package variant. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor declarations prior to procurement. Ensure the component meets the required operating temperature range specifications for the intended application environment.

Selection Notes

Select this component when designing systems requiring isolated bidirectional data transfer between 5V logic domains. Consider the LS series propagation delay characteristics relative to system timing requirements. Evaluate the 20-pin SOIC footprint against available PCB space constraints during the layout phase.

Part Context

This part belongs to the standard 74LS logic family, widely used in legacy digital systems. It serves as a fundamental interface component for managing data flow between microprocessors and peripheral devices. The device is distinct from unidirectional buffers like the SN74ALS541.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material.