74AHC139D,118

Signal Switches, Multiplexers, Decoders Overview

The Nexperia 74AHC139D,118 is a dual 2-to-4 line decoder/demultiplexer housed in a 16-lead SO16 plastic small outline package (SOT109-1). It operates within a supply voltage range of 2.0 V to 5.5 V and supports an ambient temperature range from -40 °C to +125 °C. The device features two independent decoders, each with two binary weighted address inputs and four mutually exclusive outputs controlled by an active LOW enable input. Inputs utilize Schmitt-trigger action for high noise immunity and are overvoltage tolerant up to 5.5 V.

Signal Switches, Multiplexers, Decoders Feature Summary

• Dual independent 2-to-4 decoding or demultiplexing functionality
• Wide operating supply voltage range from 2.0 V to 5.5 V
• Overvoltage tolerant inputs compatible with mixed voltage environments
• Schmitt-trigger inputs providing high noise immunity

Signal Switches, Multiplexers, Decoders Applications

• Address decoding in embedded systems
• Signal routing via demultiplexer configurations
• Mixed voltage translation between logic families

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific ordering suffix against current Nexperia documentation to confirm package type and availability status. Confirm RoHS compliance and environmental declarations prior to integration. Check for any Product Change Notifications regarding marking or assembly updates that may affect long-term sourcing strategies.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when dual independent decoding channels are required in a single surface-mount package. Ensure the application voltage remains within the 2.0 V to 5.5 V range. Verify that the SO16 package dimensions fit the PCB footprint constraints and that the thermal dissipation requirements align with the specified power derating curves.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the 74AHC logic family, designed for low power consumption and high-speed operation. It serves as a CMOS alternative to older TTL-based decoders, offering improved noise margins and broader voltage compatibility while maintaining standard pinouts for backward design compatibility.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Cross-reference with other manufacturers' 74AHC139 equivalents ensuring identical pinout and electrical specifications. Verify package compatibility if substituting with TSSOP variants.