JM54AC139SEA-RH

Overview

The JM54AC139SEA-RH is a dual 1-of-4 decoder/demultiplexer from the 54AC series, manufactured by National Semiconductor. It features inverted outputs and operates within a supply voltage range of 2V to 6V. The device supports an operating temperature range of -55°C to 125°C and utilizes a 16-pin CDIP package. It is classified as uPACE-level logic with specific military-grade reliability standards.

Feature Summary

• Dual 1-of-4 decoding functionality
• Inverted output configuration
• Wide operating temperature range for harsh environments
• uPACE-level logic compliance

Applications

• Military aerospace signal routing
• High-reliability industrial control systems
• Spacecraft data handling subsystems

Procurement Notes

Verify component authenticity through authorized distributors or manufacturer channels due to its specialized military grade status. Confirm lot traceability and certification documents are available. Ensure storage conditions meet moisture sensitivity level requirements prior to assembly. Check for any specific handling instructions related to the ceramic dual in-line package construction.

Selection Notes

Select this component when high reliability and wide temperature operation are required. It suits applications needing dual independent decoders in a single package. Consider the 16-CDIP form factor for through-hole mounting needs. Evaluate compatibility with existing 54AC series logic families for seamless integration into established designs.

Part Context

This part belongs to the 54AC series, which offers higher speed performance compared to standard 74AC counterparts while maintaining similar pinouts. The 54AC family is designed for demanding environments requiring extended temperature ranges and robust noise immunity. It serves as a bridge between commercial logic and full military specification components.

Replacement Considerations

Direct substitutes include other 54AC139 variants such as the 54AC139SEA. Verify package compatibility and electrical specifications before substitution. Cross-reference with equivalent parts from other manufacturers holding similar military certifications.