54ACTQ273WRQMLV

Overview

The National Semiconductor 54ACTQ273WRQMLV is a high-performance octal D-type flip-flop with separate clocks and three-state outputs, designed for military and aerospace applications. It features qualified reliability standards including radiation hardness and extended temperature operation. The device provides robust data storage capabilities with independent clock inputs for each stage, ensuring precise timing control in demanding environments.

Feature Summary

• Octal configuration with individual clock inputs
• Three-state output drivers for bus holding
• Qualified for harsh environmental conditions

Applications

• Military avionics systems
• Aerospace data processing units
• Radiation-hardened memory registers

Procurement Notes

Verify specific qualification certificates such as MIL-STD-883 compliance and radiation tolerance levels directly with the manufacturer or authorized distributors. Ensure that the procurement channel supports the required traceability documentation for defense contracts. Confirm that the package variant matches the exact drawing requirements for your assembly process.

Selection Notes

Select this component when designing systems requiring octal latching with independent clocking in radiation-exposed environments. Consider the three-state outputs for efficient bus management. Evaluate thermal performance against the specified operating range. Compare pin compatibility with existing board layouts to ensure seamless integration without redesigning the footprint.

Part Context

This part belongs to the ACT series of advanced TTL logic devices, known for high speed and low power consumption. The QMLV suffix indicates it meets strict Quality Management Level V standards for military use. It represents a specialized subset of standard logic families tailored for reliability-critical infrastructure.

Replacement Considerations

Check for direct equivalents from Texas Instruments or other qualified vendors offering similar radiation-hardened octal flip-flops. Verify pin-to-pin compatibility and electrical parameter alignment before substitution.