74AC138SC

Signal Switches, Multiplexers, Decoders Overview

The onsemi 74AC138SC is a high-speed CMOS 1-of-8 decoder/demultiplexer belonging to the 74AC logic family. It features three address inputs and eight active-low outputs, designed for serial-to-parallel conversion and memory addressing applications. The device operates within a supply voltage range of 2 V to 6 V and supports surface-mount installation in a 16-pin SOIC package. It functions reliably 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 with active-low outputs
• Utilizes high-speed CMOS technology for efficient power consumption and performance
• Supports surface-mount technology for automated PCB assembly processes

Signal Switches, Multiplexers, Decoders Applications

• Memory address decoding circuits
• Serial-to-parallel data conversion systems
• Demultiplexing signal routing in digital logic designs

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific suffix 'SC' against the manufacturer's official datasheet to confirm the exact package variant and tape-and-reel specifications. Ensure the ordered component matches the required RoHS compliance status and lead time requirements defined by onsemi for this specific part number.

Signal Switches, Multiplexers, Decoders Selection Notes

Select the 74AC138SC when a 1-of-8 decoding function is required with a wide 2V to 6V operating voltage range. This component is suitable for designs needing surface-mount integration and industrial temperature stability. Compare it against other 74AC series decoders if different pin counts or output polarities are needed.

Signal Switches, Multiplexers, Decoders Part Context

This component is part of the broader 74AC logic family produced by onsemi, which includes various decoders, encoders, and multiplexers. The 74AC138SC specifically addresses the need for high-speed decoding in compact surface-mount packages, serving as a standard solution for digital system architecture requiring reliable signal distribution.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Direct substitutes include the MC74AC138SC and 74AC138N, provided the package type (SOIC vs. DIP) matches the design constraints. Verify that any replacement maintains the same 74AC logic speed and voltage specifications.