74HCT139N,652

Signal Switches, Multiplexers, Decoders Overview

The 74HCT139N,652 is a dual 2-to-4 line decoder/driver from the NXP HCT logic family. It features inverted outputs and operates within a supply voltage range of 4.5 V to 5.5 V. The component utilizes a 16-pin PDIP package with through-hole mounting. It supports an operating temperature range from -40 °C to +125 °C and includes two independent decoding functions.

Signal Switches, Multiplexers, Decoders Feature Summary

• Dual independent 2-to-4 line decoding functionality
• Inverted output polarity for signal compatibility
• High-speed CMOS technology compatible with TTL levels

Signal Switches, Multiplexers, Decoders Applications

• Address decoding in microprocessor systems
• Data routing and demultiplexing circuits
• Memory chip select generation

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific suffix '652' against official Nexperia documentation to confirm the exact reel or tube packaging configuration. Ensure the datasheet matches the current manufacturing site, as production transfers between NXP and Nexperia may affect marking details. Confirm RoHS compliance status directly with the manufacturer's latest release notes before finalizing procurement specifications.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when dual independent decoding is required in a single package. The HCT series ensures compatibility with standard 5V logic interfaces. Verify that the 16-pin DIP form factor fits the target PCB layout constraints. Consider the propagation delay characteristics if high-speed switching is critical for the application timing requirements.

Signal Switches, Multiplexers, Decoders Part Context

This device belongs to the widely used 74HCT logic family, known for its CMOS power efficiency combined with TTL-compatible input thresholds. The part number indicates a dual decoder variant, distinct from single decoder or multiplexer versions within the same series. It serves as a fundamental building block for digital address selection tasks.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Cross-reference with other manufacturers offering equivalent 74HCT139 devices in PDIP-16 packages. Verify pinout compatibility and electrical parameters such as output drive current and propagation delay to ensure functional equivalence without circuit redesign.