54LS348/BEA

Overview

The SNJ54LS348J is a high-speed low-power Schottky TTL priority encoder manufactured by Rochester Electronics, LLC. It converts eight active-high data inputs into a three-bit binary code corresponding to the highest-order active input. The device features an enable input for cascading and output enable control. It is housed in a ceramic dual in-line package (CDIP-14) with glass-sealed construction, designed for military temperature ranges from -55°C to +125°C.

Feature Summary

• Converts eight active-high inputs to a three-bit binary encoded output
• Includes enable input for system expansion and cascading capabilities
• Constructed with hermetic ceramic packaging for harsh environment reliability

Applications

• Military avionics signal encoding systems
• Industrial control logic interfaces
• High-reliability computing peripheral connections

Procurement Notes

Verify the specific suffix BEA indicates dual marking per MIL-M-38510 standards. Confirm the CDIP-14 ceramic package integrity upon receipt. Ensure the component matches the original OEM datasheet specifications guaranteed by Rochester Electronics. Validate that the part meets all industry and DLA standards required for your specific application context.

Selection Notes

Select this component when military-grade reliability and hermetic sealing are required for TTL logic applications. The LS series offers a balance of speed and power consumption suitable for complex digital systems. Verify that the -55°C to +125°C operating range aligns with your environmental constraints compared to commercial variants.

Part Context

This part belongs to the standard 54LSxx series of logic integrated circuits. Rochester Electronics produces these components using recreated wafers or original manufacturer stock, guaranteeing performance equal to the original OEM specifications. The device serves as a critical replacement for legacy military and aerospace systems requiring durable, high-performance logic gates.

Replacement Considerations

Direct replacements include other 54LS348 variants in compatible packages. Verify pinout compatibility before substitution. Ensure the substitute maintains the same military temperature rating and hermetic seal requirements for critical applications.