74ACTQ543QSC

Buffers, Drivers, Receivers, Transceivers Overview

The Fairchild Semiconductor 74ACTQ543QSC is an octal registered bus transceiver utilizing FACT Quiet Series technology. It features non-inverting true outputs with three-state capability, designed for high-speed data transfer in bus-oriented applications. The device operates within a supply voltage range of 2V to 6V and provides output drive currents of 24mA for both sourcing and sinking. Packaged in a 24-pin SOIC format, it integrates separate control inputs for direction and output enablement, ensuring reliable signal integrity through reduced simultaneous switching noise.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• FACT Quiet Series technology ensures guaranteed pin-to-pin skew AC performance and improved dynamic threshold stability.
• Octal configuration provides eight independent bidirectional data paths with registered storage capabilities.
• Three-state outputs allow direct connection to system buses without additional buffering requirements.

Buffers, Drivers, Receivers, Transceivers Applications

• Bus-oriented memory address register buffering
• High-speed data acquisition systems
• Control signal distribution networks

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix QSC against the manufacturer's current datasheet to confirm package dimensions and tape-and-reel specifications. Ensure compatibility with existing board layouts regarding the 24-SOIC footprint. Cross-reference lead times and availability directly with authorized distributors, as production status may vary by region.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when low power consumption and high speed are required alongside noise immunity. The ACTQ series offers faster propagation delays compared to standard AC logic while maintaining CMOS compatibility. Consider the 24mA drive strength for moderate load conditions and verify that the 2V to 6V operating range aligns with the target system voltage levels.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74ACTQ family of logic integrated circuits, which combines the speed of AC logic with the quiet switching characteristics of FACT technology. The 543 designation specifically identifies the octal registered transceiver function within this hierarchy, distinguishing it from unregistered variants or different bit-width configurations.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Compatible substitutes include the 74ACQ543SC and 74ACTQ543SC. Verify pinout compatibility and electrical parameters such as propagation delay and output current before substitution. Ensure the replacement maintains the same 24-pin SOIC package and voltage operating range.