CD74HC139E

Signal Switches, Multiplexers, Decoders Overview

The CD74HC139E is a dual 2-to-4 line decoder/driver from the HC/UH series, manufactured by Harris Corporation. It features inverted outputs and utilizes CMOS technology in a PDIP16 package. The device includes two independent decoding functions with three enable inputs to facilitate cascading. It operates within a temperature range of -40 °C to 85 °C, has a maximum output low current of 0.004 A, and supports a load capacitance of 50 pF.

Signal Switches, Multiplexers, Decoders Feature Summary

• Dual independent 2-to-4 line decoding functionality
• Inverted output polarity for signal compatibility
• Three enable inputs designed to simplify cascading configurations

Signal Switches, Multiplexers, Decoders Applications

• Memory address decoding systems
• Data routing applications
• I/O port selection circuits

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify component authenticity as the manufacturer Harris Corporation may have undergone corporate restructuring or acquisition. Confirm that the PDIP16 package matches the required footprint and pin configuration. Ensure the operating temperature range meets the specific environmental requirements of the target application design.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when dual independent decoding channels are required within a single package. The HC/UH series offers high noise immunity suitable for general-purpose logic applications. Verify that the inverted output polarity aligns with the downstream circuit requirements before finalizing the design.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the HC/UH series of high-speed CMOS logic devices produced by Harris Corporation. The series is characterized by low power consumption comparable to standard CMOS while maintaining speeds similar to low-power Schottky TTL logic families.