74ACT138SJ

Signal Switches, Multiplexers, Decoders Overview

The Fairchild Semiconductor 74ACT138SJ is a high-speed CMOS decoder/demultiplexer belonging to the 74ACT logic family. It features one circuit with three binary select inputs and eight active-low outputs, housed in a 16-pin SOIC package. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports surface-mount installation. It functions across an industrial temperature range from -40°C to +85°C.

Signal Switches, Multiplexers, Decoders Feature Summary

• Provides one-of-eight decoding or demultiplexing functionality using three binary select lines.

Signal Switches, Multiplexers, Decoders Applications

• Memory address decoding
• Data routing
• Demultiplexing applications

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm RoHS compliance status via official documentation. Check for obsolescence notices as this part may be discontinued. Ensure packaging specifications match design requirements. Validate datasheet revisions against current manufacturing standards.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component for applications requiring fast switching speeds and low power consumption typical of ACT logic. Ensure system voltage remains within the specified 4.5V to 5.5V range. Verify thermal management capabilities for the intended operating temperature environment. Consider pin compatibility if replacing older logic families.

Signal Switches, Multiplexers, Decoders Part Context

This component is part of the broader 74ACT series, designed for high-performance digital systems. It serves as a standard solution for addressing and data distribution tasks in embedded electronics. The specific SJ suffix indicates the 16-lead Small Outline Integrated Circuit (SOIC) package configuration used by Fairchild Semiconductor.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Direct substitutes include MC74ACT138SCX and MC74ACT138SC from onsemi. Cross-reference with other manufacturers' 74ACT138 variants ensuring identical pinouts and electrical characteristics before implementation.