74VHC139CW

Signal Switches, Multiplexers, Decoders Overview

The onsemi 74VHC139CW is a dual 2-to-4 line decoder/demultiplexer belonging to the 74VHC logic family. It operates within a supply voltage range of 2 V to 5.5 V and features low input current. The device provides two independent decoders in a single package, utilizing active-low outputs for precise signal selection. Designed for surface-mount applications, it supports industrial temperature ranges and ensures reliable performance in high-speed digital systems requiring efficient address decoding or data distribution.

Signal Switches, Multiplexers, Decoders Feature Summary

• Dual independent 2-to-4 decoder functionality
• Active-low output states
• Wide operating voltage range
• Low input leakage current

Signal Switches, Multiplexers, Decoders Applications

• Address decoding in memory architectures
• Data distribution networks
• Chip select generation
• Peripheral device selection

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific suffix 'CW' against official datasheets to confirm package type and tape/reel specifications. Ensure compatibility with existing PCB footprints and soldering profiles. Confirm RoHS compliance status through manufacturer documentation before integration into regulated assemblies.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when dual independent decoding is required within a compact footprint. The 74VHC series offers faster switching speeds compared to standard HC logic while maintaining CMOS power efficiency. Verify that the 2-to-4 configuration matches system requirements rather than opting for higher-density alternatives if only partial decoding is needed.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the widely adopted 74VHC logic family, known for high-speed operation and compatibility with 5V and 3.3V systems. The 139 designation specifically indicates a dual decoder structure, distinguishing it from multiplexers or encoders within the same logical series.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Cross-reference with other manufacturers offering equivalent 74VHC139 parts in SOIC-16 packages. Verify pinout compatibility and electrical characteristics such as propagation delay and output drive strength before substitution.