JD54LS151SEA

Overview

The JD54LS151SEA is a military-grade 8-Line-to-1-Line Data Selector/Multiplexer manufactured by National Semiconductor. It features eight digital data inputs, three binary select lines, and complementary outputs (Q and Q-bar). The device includes an active-low strobe input for enabling or disabling operation. It is housed in a 16-pin ceramic dual-in-line package (CDIP) designed for high reliability. The component operates within an extended temperature range of -55°C to +125°C, suitable for harsh environments.

Feature Summary

• Provides high-reliability multiplexing functionality for military and aerospace applications
• Features complementary outputs for flexible logic interfacing
• Includes an active-low enable/strobe control input for precise timing management

Applications

• Military avionics signal routing systems
• Aerospace telemetry data selection
• Harsh environment industrial control logic

Procurement Notes

Verify the authenticity of the National Semiconductor manufacturer marking on the ceramic package. Confirm the presence of the 'J' suffix indicating hermetic sealing and the 'S' suffix for the specific lead form. Ensure the part meets MIL-PRF-38534 or equivalent military quality standards required for the intended application environment.

Selection Notes

Select this component when a hermetically sealed, radiation-hardened capable multiplexer is required for extreme temperature stability. It serves as a direct functional replacement for other SN54LS151 variants where military qualification and ceramic packaging are mandatory specifications.

Part Context

This part belongs to the 54LS series of logic devices, which are characterized by low-power Schottky technology. Unlike commercial 74LS equivalents, the 54-series parts are qualified for the full military temperature range and utilize ceramic packages to ensure long-term reliability in critical systems.

Replacement Considerations

Direct replacements include SN54LS151J or SN54LS151FA from Texas Instruments, provided they meet the same military environmental qualifications and package dimensions.