54ACTQ04E-QMLV

Overview

The 54ACTQ04E-QMLV is a hex inverter integrated circuit belonging to the high-speed CMOS 54ACT series, specifically qualified under the QML-V standard for aerospace applications. It operates within a voltage range of 4.5 V to 5.5 V and features hermetic ceramic packaging designed to withstand harsh environmental conditions. The component exhibits high radiation hardness, including immunity to single event latch-up up to 110 MeV.cm²/mg and a total ionizing dose tolerance of 300 krad(Si). It is characterized for single event upset and transient effects across an operating temperature range of -55 °C to +125 °C.

Feature Summary

• Hermetically sealed ceramic package construction suitable for demanding space environments
• High radiation hardness with specific immunity thresholds for single event latch-up and total ionizing dose
• Characterized performance against single event upset and single event transient effects

Applications

• Aerospace digital logic systems requiring radiation tolerance
• Satellite communication equipment signal processing
• Harsh environment control units in defense applications

Procurement Notes

Verify that the ordering suffix explicitly includes 'QMLV' to ensure compliance with the required quality level. Confirm the presence of the '54ACT' prefix to distinguish this high-speed variant from other series. Ensure the manufacturer documentation aligns with DLA specifications for the 54AC/ACT family. Request full test reports regarding radiation characterization data if mission-specific validation is necessary.

Selection Notes

Select this component when radiation hardness is mandatory for space or high-altitude operations. The 54ACT series provides higher speed compared to standard 54AC devices while maintaining similar power characteristics. Verify that the 4.5 V to 5.5 V supply voltage matches the system design. Consider the hermetic package requirements versus non-hermetic alternatives based on environmental sealing needs.

Part Context

This part belongs to the broader 54AC/ACT family of high-speed CMOS functions manufactured by National Semiconductor (now Texas Instruments). These components are engineered to meet strict aerospace industry radiation requirements. The family includes various logic gates, flip-flops, and bus interfaces, all sharing common radiation qualification standards and hermetic packaging options.

Replacement Considerations

Direct replacements must be QML-V qualified 54ACT hex inverters. Verify compatibility with existing radiation hardening specifications. Check for equivalent single event effect characterization data. Ensure the replacement maintains the same hermetic package style and voltage operating range.