54LS356J/B

Overview

The 54LS356J/B is an 8-to-1 data selector/multiplexer manufactured by Rochester Electronics, LLC. It is dual marked as M38510/10502BEA and belongs to the LS series of TTL logic devices. The component operates within a military temperature range of -55°C to 125°C. It features a ceramic DIP-14 package with glass-sealed construction. Key electrical parameters include a maximum supply voltage of 5.5 V and a propagation delay of 15 ns.

Feature Summary

• Provides eight selectable data inputs routed to a single output channel
• Constructed using ceramic material with glass-sealed packaging for durability
• Designed for operation across the full military temperature spectrum

Applications

• Military avionics signal routing
• Spacecraft data selection systems
• High-reliability industrial control multiplexing

Procurement Notes

Verify the M38510/10502BEA dual marking on the component body to confirm authenticity. Ensure the supplier provides traceability documentation consistent with MIL-PRF-38535 Class Q requirements. Confirm that testing utilizes original factory programs or approved Rochester solutions to guarantee performance meets the original manufacturer specifications.

Selection Notes

Select this component when an 8-to-1 multiplexing function is required in harsh environments. The LS series offers standard TTL compatibility while the ceramic package ensures thermal stability. Verify that the system voltage does not exceed 5.5 V and that the 15 ns propagation delay meets timing constraints for the specific application circuit.

Part Context

Rochester Electronics specializes in manufacturing and distributing critical semiconductors, including those from discontinued lines. This part is produced under license using original intellectual property or recreated wafers. The company maintains ISO-9001 and AS9120 certifications, ensuring quality control for defense and aerospace sectors requiring long-term availability.

Replacement Considerations

Compatible substitutes include other SN54LS356 variants from original manufacturers such as Texas Instruments or National Semiconductor, provided they meet the same pinout and electrical specifications. Ensure any replacement supports the military temperature range and ceramic DIP-14 package form factor.