CD74HC138EG4

Signal Switches, Multiplexers, Decoders Overview

The CD74HC138EG4 is a high-speed CMOS logic device functioning as a 3-to-8 line decoder and demultiplexer. It features one circuit with three inputs and eight outputs, available in a 16-pin PDIP package. The component operates within a supply voltage range of 2 V to 6 V and supports an extended industrial temperature range from -55°C to +125°C.

Signal Switches, Multiplexers, Decoders Feature Summary

• High-speed silicon-gate CMOS technology
• Inverting and non-inverting output options
• Suitable for memory address decoding
• Capable of data-routing applications

Signal Switches, Multiplexers, Decoders Applications

• Memory address decoding
• Data-routing applications
• General-purpose digital logic systems

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific EG4 suffix against current manufacturer documentation to confirm pinout compatibility and package dimensions. Confirm RoHS compliance status through official datasheets. Ensure the procurement channel provides valid traceability for this discontinued or legacy part number.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when extended temperature operation down to -55°C is required, distinguishing it from standard commercial variants. The PDIP package is suitable for prototyping or through-hole manufacturing environments where surface-mount options are not feasible.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the Texas Instruments CD74HC138 series of decoders. It utilizes high-speed CMOS technology to provide efficient signal routing. The EG4 designation typically indicates a lead-free and RoHS-compliant variant within the PDIP package family.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Direct substitutes include SN74HC138 and CD74HCT138. Verify voltage level compatibility if replacing with HCT variants, as they require different input thresholds compared to the HC series.