74ACTQ543SC

Buffers, Drivers, Receivers, Transceivers Overview

The onsemi 74ACTQ543SC is an octal registered transceiver utilizing Quiet Series technology. It features two sets of D-type registers for data storage in either direction, with separate latch enable and output enable inputs for independent control. The device operates at a supply voltage of 4.5V to 5.5V, providing 24mA source/sink current capability. It includes GTO output control and undershoot correction for superior dynamic threshold performance.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Non-inverting octal transceiver with back-to-back D-type registers for temporary data storage
• Separate Latch Enable and Output Enable controls allow independent input and output management
• Quiet Series technology ensures guaranteed simultaneous switching noise levels and dynamic threshold performance
• Outputs provide 24mA source and sink current capabilities

Buffers, Drivers, Receivers, Transceivers Applications

• High-speed data bus interfaces requiring latched storage
• Bidirectional data flow control systems
• Digital logic circuits needing simultaneous switching noise reduction

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific manufacturer origin, as this component was originally designed by Fairchild Semiconductor and may be produced by onsemi or other licensees. Confirm the package type matches the required footprint, specifically the 24-Lead Small Outline Integrated Circuit (SOIC). Ensure the datasheet version aligns with the production batch specifications.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when bidirectional data transfer with internal latching is required. It is suitable for applications demanding low skew and controlled switching noise. Compare against standard 74AC543 variants if quiet operation is critical. Ensure the system voltage falls within the 4.5V to 5.5V range for ACTQ series compatibility.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74ACQ/ACTQ family of octal registered transceivers. It shares functional similarities with the 74ACQ543 but operates at higher voltage levels typical of the ACTQ series. The device is designed to replace older logic families while offering improved noise immunity and drive strength through specialized output control circuitry.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Check for equivalents such as the 74ACQ543SC from other manufacturers. Verify pin compatibility and electrical characteristics before substitution.