JD54F138SEA

Overview

The JD54F138SEA is a military-grade 1-of-8 decoder/demultiplexer from the National Semiconductor 54F series. It utilizes F/FAST logic technology and is housed in a 16-pin ceramic CDIP package with a metal-sealed cofired body. The device operates on a 5 V supply and supports an extended temperature range from -55 °C to 125 °C. It features three address inputs and eight active-low outputs, designed for high-reliability applications requiring robust performance in harsh environments.

Feature Summary

• Military-grade reliability with extended temperature operation
• High-speed F/FAST logic architecture
• Ceramic dual in-line package for environmental sealing

Applications

• High-reliability address decoding systems
• Harsh environment signal routing
• Military aerospace control circuits

Procurement Notes

Verify the specific suffix 'SEA' against the manufacturer's current datasheet to confirm pinout and electrical characteristics match requirements. Ensure the component is sourced as genuine National Semiconductor or Texas Instruments product, noting that National Semiconductor assets were acquired by TI. Confirm the ceramic package integrity and date code upon receipt.

Selection Notes

Select this part when military-grade temperature tolerance and radiation hardness are required. The ceramic CDIP package offers superior hermetic sealing compared to plastic alternatives. Consider the 54F series speed-power trade-offs relative to LS or AC variants if power consumption is a critical constraint in the design.

Part Context

This component belongs to the 54F family of high-speed logic devices manufactured by National Semiconductor. The 54 prefix indicates military-grade qualification, distinguishing it from commercial 74F parts. The 138 designation identifies it as a 3-to-8 line decoder/demultiplexer within the standard logic nomenclature.

Replacement Considerations

The DM54F138SEA may serve as a direct functional equivalent. Verify pin compatibility and electrical specifications before substitution.