JD54F109SEA

Overview

The JD54F109SEA is a high-speed Schottky TTL quad 2-input NAND gate manufactured by National Semiconductor. It features a hermetically sealed ceramic flatpack package designed for military and aerospace applications requiring radiation hardness and extended temperature stability. The device operates within a supply voltage range of 4.75V to 5.25V, with typical propagation delays of 3.5ns at 5V. It supports standard TTL logic levels and includes built-in clamp diodes on inputs for transient protection.

Feature Summary

• Hermetically sealed ceramic construction for environmental durability
• High-speed Schottky TTL logic family performance
• Radiation hardened design suitable for harsh environments

Applications

• Military avionics control systems
• Aerospace data processing units
• Spacecraft communication interfaces

Procurement Notes

Verify the specific suffix 'SEA' indicates the correct package style and thermal characteristics. Confirm that the component meets current military specifications such as MIL-PRF-38534 if required for your application. Check for lot traceability and certification documents necessary for defense contracts. Ensure compatibility with existing board layouts due to the flatpack footprint dimensions.

Selection Notes

Select this component when radiation tolerance and long-term reliability in extreme temperatures are critical. Compare against other F-series parts for speed and power consumption differences. Consider the cost implications of ceramic packaging versus plastic alternatives. Evaluate the availability of qualified sources for government procurement channels.

Part Context

This part belongs to the National Semiconductor 54F series, which denotes military-grade performance standards. The 54F series offers faster switching speeds compared to the standard 54LS series while maintaining similar power dissipation profiles. It is distinct from commercial variants by its rigorous testing protocols and material selection for longevity in space or combat conditions.

Replacement Considerations

Direct replacements include other 54F109 equivalents from manufacturers like Texas Instruments or Raytheon. Verify pinout compatibility before substitution. Ensure the replacement part also carries the necessary military certifications and radiation hardening qualifications.