74HCT139PW,112

Signal Switches, Multiplexers, Decoders Overview

The 74HCT139PW,112 is a dual 2-to-4 line decoder/demultiplexer manufactured by Nexperia. It operates within a supply voltage range of 4.5 V to 5.5 V and features two independent decoders with active LOW mutually exclusive outputs. The device utilizes HCT logic levels compatible with TTL inputs and is housed in a TSSOP-16 package (SOT-403). It supports an operating temperature range from -40 °C to +125 °C and includes clamp diodes on inputs for interface protection.

Signal Switches, Multiplexers, Decoders Feature Summary

• Dual independent 2-to-4 decoder functionality
• Active LOW mutually exclusive outputs
• Demultiplexing capability via enable input
• TTL-compatible input levels

Signal Switches, Multiplexers, Decoders Applications

• Address decoding in microprocessor systems
• Data routing as a 1-to-4 demultiplexer
• Memory chip select generation
• Industrial control logic interfacing

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific ordering code suffix against current Nexperia documentation to confirm package type and tape/reel specifications. Confirm RoHS compliance status and lead times directly with authorized distributors, as availability may vary by region. Ensure the component meets JEDEC standard no. 7A requirements for your application environment.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when TTL-level compatibility is required alongside CMOS performance. The HCT series ensures direct interfacing with older TTL logic families without level shifting. Consider the TSSOP-16 package for surface-mount applications requiring space efficiency while maintaining pin compatibility with legacy DIP packages.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the 74HCT139 family of high-speed Si-gate CMOS devices. It is pin-compatible with low-power Schottky TTL (LSTTL) standards. The device serves as a versatile logic solution for decoding and multiplexing tasks in digital circuits, offering robust performance across industrial temperature ranges.

Signal Switches, Multiplexers, Decoders Replacement Considerations

The 74HC139PW,112 is a CMOS variant with similar pinout but different input thresholds. Verify voltage compatibility before substitution. Other manufacturers producing equivalent dual 2-to-4 decoders in TSSOP-16 packages may serve as alternatives if electrical parameters align.