74AHCT139PW,118

Signal Switches, Multiplexers, Decoders Overview

The Nexperia 74AHCT139PW,118 is a dual 2-to-4 line decoder/demultiplexer housed in a 16-TSSOP package. It operates on a single power supply ranging from 4.5 V to 5.5 V. The device features two independent decoders, each with two binary weighted address inputs and four mutually exclusive outputs. It includes active LOW enable inputs that force all outputs HIGH when asserted. The component supports an operating temperature range of -40 °C to +125 °C.

Signal Switches, Multiplexers, Decoders Feature Summary

• Accepts TTL input levels for compatibility with Transistor-Transistor Logic systems
• Provides overvoltage tolerant inputs allowing use as translators in mixed voltage environments
• Features balanced propagation delays and Schmitt-trigger action on all inputs

Signal Switches, Multiplexers, Decoders Applications

• Memory chip select decoding
• Address decoding for I/O port mapping
• Data demultiplexing applications

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific ordering suffix matches the required package type and tape/reel configuration. Confirm the RoHS compliance status aligns with current environmental regulations. Ensure the manufacturer part number corresponds exactly to the requested logic family variant before finalizing procurement orders.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when TTL-compatible input thresholds are required within a CMOS system. The TSSOP16 package offers a compact footprint suitable for space-constrained designs. Verify that the supply voltage remains within the specified 4.5 V to 5.5 V range to ensure proper logic level translation and performance stability.

Signal Switches, Multiplexers, Decoders Part Context

This device belongs to the Nexperia 74AHCT series, which bridges CMOS technology with TTL logic standards. The 74AHCT139 specifically provides dual decoding capabilities, distinguishing it from single-decoder variants. It shares functional similarities with other 74-series logic but is optimized for high-speed operation with low power dissipation characteristics typical of advanced CMOS processes.

Signal Switches, Multiplexers, Decoders Replacement Considerations

The 74AHC139PW,118 serves as a CMOS-level compatible alternative, though it requires CMOS input voltages rather than TTL levels.