MM54C173J/883

Flip Flops Overview

The MM54C173J/883 is a quad D-type flip-flop manufactured by National Semiconductor. It features four independent positive-edge-triggered D flip-flops with tri-state outputs in a 16-pin ceramic dual in-line package (CDIP). The device operates at a nominal supply voltage of 5 V and supports a maximum propagation delay of 200 ns at 10 V with 50 pF load. It is qualified to MIL-STD-883 Class C standards, ensuring reliability for military applications.

Flip Flops Feature Summary

• Provides four independent D-type flip-flops with positive-edge triggering
• Features tri-state outputs for bus-oriented memory operations
• Constructed in hermetic ceramic dual in-line packaging for environmental protection

Flip Flops Applications

• Military-grade digital logic systems requiring high reliability
• Bus-oriented memory register implementations
• High-reliability data storage circuits in aerospace environments

Flip Flops Procurement Notes

Verify the specific suffix J/883C against official National Semiconductor or Texas Instruments documentation to confirm MIL-STD-883 Class C screening levels. Ensure the ceramic package integrity matches the required environmental specifications for the intended deployment. Cross-reference the manufacturer's current datasheet to validate pinout compatibility and electrical characteristics before integration into final designs.

Flip Flops Selection Notes

Select this component when a quad D-type flip-flop with tri-state outputs is required for military or aerospace applications. The ceramic package provides superior environmental resistance compared to plastic variants. Consider the 200 ns propagation delay limit when designing timing-critical paths. Verify that the 5 V supply voltage aligns with the system power architecture and that the CDIP footprint fits the board layout constraints.

Flip Flops Part Context

This part belongs to the MM54 series of high-reliability CMOS logic devices produced by National Semiconductor, now part of Texas Instruments. The MM54 series is designed for military specifications, offering extended temperature ranges and rigorous screening processes. It complements other logic families within the same heritage, providing robust performance in harsh operational environments where standard commercial components would fail.

Flip Flops Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.