54AC158WRQMLV

Overview

The 54AC158WRQMLV is a quad 2-input multiplexer belonging to the National Semiconductor 54AC series. It functions as a data selector, choosing four bits of data from two sources using common Select and Enable inputs. The component is packaged in a 16-lead Ceramic Flat Pack (CFP). It is manufactured under Mil-Prf-38535 qualifications, indicating suitability for high-reliability applications requiring specific radiation hardness characteristics.

Feature Summary

• Quad 2-input multiplexing architecture
• Common Select and Enable control inputs
• Ceramic Flat Pack (CFP) packaging
• Mil-Prf-38535 qualified construction

Applications

• High-reliability digital signal routing
• Military aerospace systems
• Radiation-hardened data selection circuits

Procurement Notes

Verify that the specific batch matches the required Mil-Prf-38535 qualification level. Confirm the package type is the 16-lead CFP variant. Ensure radiation hardness characterization aligns with the intended system's dose rate and anneal conditions, as plastic packaging effects differ significantly from ceramic.

Selection Notes

Select this component when a quad 2-input multiplexer is required in a military or aerospace environment. The 54AC series offers high-speed performance suitable for complex digital logic. The WRQMLV suffix denotes the specific military-grade ceramic flat pack configuration, distinguishing it from commercial plastic variants.

Part Context

This part is part of the broader 54AC family of high-speed CMOS logic devices. National Semiconductor, now part of Texas Instruments, produced these components for demanding environments. The 54AC158 specifically provides four independent 2-to-1 multiplexers within a single integrated circuit package.

Replacement Considerations

Direct substitutes include other 54AC158 variants from Texas Instruments or qualified equivalents from manufacturers like TE Connectivity. Verify pin compatibility and radiation hardness specifications before substitution.