JM54AC138SFA-RH

Overview

The JM54AC138SFA-RH is a high-speed CMOS logic device manufactured by National Semiconductor, functioning as a 1-of-8 decoder or demultiplexer. It belongs to the 54AC series, designed for military-grade performance with extended temperature ranges. The component utilizes a 16-CFLATPACK surface-mount package and operates on a nominal 5V supply. It features three address inputs and eight active-low outputs, providing reliable signal routing in harsh environments.

Feature Summary

• Military-grade reliability compliant with MIL-STD-883 Class C standards
• High-speed CMOS technology for low power consumption and fast switching
• Active-low output decoding for direct interface with digital systems

Applications

• Military aerospace communication systems requiring radiation-hardened logic
• Industrial control units operating in extreme temperature environments
• Signal routing in defense-grade data acquisition hardware

Procurement Notes

Verify that the specific suffix SFA corresponds to the required 16-CFLATPACK package configuration. Confirm RoHS compliance status, as some sources indicate non-compliance for this specific part number variant. Ensure the supplier provides traceability documentation consistent with MIL-STD-883 Class C requirements for military applications.

Selection Notes

Select this component when military qualification and extended temperature operation are mandatory. Compare against standard commercial AC138 variants if environmental constraints are less severe. Verify pin compatibility with existing PCB layouts due to the specific CFLATPACK footprint requirements.

Part Context

This part is part of the 54-series logic family, distinguished from the 74-series by its wider operating temperature range and higher reliability specifications. It serves as a specialized version of the AC138 decoder, tailored for defense and aerospace sectors where standard commercial components are insufficient.

Replacement Considerations

JM54ACT138SEA-R is an ACT series alternative offering similar functionality with potentially different speed characteristics. Verify voltage tolerance and package compatibility before substitution.