CD74HC139EG4

Signal Switches, Multiplexers, Decoders Overview

The CD74HC139EG4 is a dual 2-to-4 line decoder/demultiplexer manufactured by Texas Instruments. It belongs to the 74HC logic family and utilizes high-speed CMOS technology. The device features two independent decoders, each with two binary address inputs and four active-low outputs. It includes an active-low enable input for each decoder section. The component operates within a supply voltage range of 2V to 6V and supports through-hole mounting in a 16-pin PDIP package.

Signal Switches, Multiplexers, Decoders Feature Summary

• Dual independent 2-to-4 line decoding functionality
• Active-low outputs suitable for memory addressing
• Wide operating voltage range for flexible system integration
• Through-hole packaging for standard board assembly

Signal Switches, Multiplexers, Decoders Applications

• Memory address decoding systems
• Data routing applications
• Industrial control logic circuits

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify current availability status as this specific part number may be discontinued or superseded by newer revisions. Confirm that the 16-PDIP package meets mechanical constraints. Ensure compatibility with existing PCB footprints before procurement. Check for updated datasheets regarding environmental compliance and manufacturing changes.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when dual 2-to-4 decoding is required in through-hole designs. Compare against SN74HC139 variants for surface-mount alternatives. Verify voltage levels match system requirements. Consider pinout compatibility with legacy 74HC139 designs.

Signal Switches, Multiplexers, Decoders Part Context

This device is part of the broader 74HC139 family of decoders. It shares functional similarities with other 74HC series logic but is distinguished by its specific PDIP packaging and dual-channel architecture. It serves as a digital logic interface for selecting one of four output lines based on binary input states.

Signal Switches, Multiplexers, Decoders Replacement Considerations

CD74HC139E is listed as a manufacturer-recommended alternative.