DM54L73W/883

Overview

The DM54L73W/883 is a dual J-K flip-flop manufactured by National Semiconductor (TI) using L-TTL technology. It features a ceramic flatpack package with 14 pins, designed for military-grade reliability under MIL-STD-883 Class C screening. The device operates on a 5 V supply with a maximum current consumption of 5.5 mA. It supports an operating temperature range from -55 °C to 125 °C and has a maximum frequency of 6 MHz at nominal supply voltage.

Feature Summary

• Dual negative-edge-triggered master-slave J-K flip-flops with clear and complementary outputs
• Military-grade ceramic flatpack construction for harsh environment durability
• Compliant with MIL-STD-883 Class C screening standards

Applications

• Military aerospace digital logic systems
• High-reliability data storage circuits
• Harsh environment signal processing

Procurement Notes

Verify the specific suffix /883 indicates compliance with MIL-STD-883 testing requirements. Confirm the W package designation matches the required ceramic flatpack form factor. Ensure the manufacturer source is authorized National Semiconductor or Texas Instruments to guarantee authentic military-grade screening and traceability for defense applications.

Selection Notes

Select this component when military qualification and ceramic packaging are mandatory. The L-TTL technology offers lower power consumption than standard TTL while maintaining compatibility. Verify that the 6 MHz speed meets system timing requirements and that the wide temperature range suits the operational environment.

Part Context

This part belongs to the DM54 family of high-reliability logic devices produced by National Semiconductor. It is functionally similar to commercial variants but distinguished by its ceramic construction and rigorous military screening. The /883 suffix denotes adherence to specific government procurement standards for quality assurance.

Replacement Considerations

Public confirmed substitute part numbers: DM54LS73J/883C, DM54L93W/883B.