DM54LS175J/883

Overview

The DM54LS175J/883 is a dual negative-edge-triggered master-slave J-K flip-flop manufactured by National Semiconductor. It features clear and complementary outputs, designed for military-grade applications. The device utilizes LS-TTL technology and is housed in a 14-pin ceramic DIP package. Key electrical parameters include a maximum operating frequency of 30 MHz at a nominal supply voltage of 5 V. The maximum low-level output current is specified at 0.004 A, with a maximum supply current of 8 mA. The component operates within a temperature range of -55 °C to 125 °C and meets MIL-STD-883 Class C screening requirements.

Feature Summary

• Dual negative-edge-triggered master-slave J-K flip-flops with clear and complementary outputs
• Military-grade reliability with MIL-STD-883 Class C screening certification
• High-speed operation capability up to 30 MHz under standard conditions

Applications

• Military aerospace digital logic systems requiring high reliability
• Synchronous data storage and shift register circuits
• Frequency division and counting applications in harsh environments

Procurement Notes

Verify the specific screening level (Class B or C) and manufacturer source (National Semiconductor vs. Texas Instruments) upon order confirmation. Ensure compliance with MIL-STD-883 requirements if specified for mission-critical deployments. Confirm ceramic package integrity and lead finish specifications against project documentation prior to procurement.

Selection Notes

Select this component when dual J-K flip-flops with complementary outputs are required for high-reliability military applications. Consider the 30 MHz speed limit and 5 V supply constraints. Verify that the ceramic DIP-14 package fits the mechanical design. Compare against other LS-TTL variants if lower power consumption or different pinouts are needed.

Part Context

This part belongs to the DM54 series of military-grade TTL logic devices produced by National Semiconductor, now part of Texas Instruments. The 'LS' suffix indicates Low-power Schottky technology, offering a balance of speed and power dissipation. The '/883' suffix denotes adherence to MIL-STD-883 testing standards for semiconductor integrated circuits.

Replacement Considerations

Public confirmed substitute part numbers: DM54LS73J/883C.