74FCT543PBCTQ

Buffers, Drivers, Receivers, Transceivers Overview

The IDT 74FCT543PBCTQ is a non-inverting octal registered bus transceiver built using advanced dual metal CMOS technology. It features eight bidirectional data paths with latched outputs, designed for high-speed applications. The device operates within a supply voltage range of 4.75V to 5.25V and supports TTL input and output levels. Key electrical parameters include a propagation delay of 6.5 ns at nominal supply, low-level output current of 64 mA, and high-level output current of -32 mA. It functions as a single circuit with 8 bits per element, housed in a 24-pin DIP package.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal registered bus transceiver architecture providing eight bidirectional data paths with latched outputs
• Non-inverting logic function utilizing advanced dual metal CMOS technology for high-speed performance
• Compatible with TTL input and output voltage levels for seamless interface integration

Buffers, Drivers, Receivers, Transceivers Applications

• High-speed data acquisition systems requiring buffered and latched signal paths
• Bus-oriented memory and I/O architectures needing octal data transfer capabilities
• Digital communication interfaces utilizing registered transceivers for signal integrity

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'PBCTQ' against the manufacturer's current product status, as legacy FCT components may have discontinuation notices or alternative sourcing requirements. Confirm RoHS compliance status and moisture sensitivity level (MSL) ratings prior to procurement, as these attributes can vary by manufacturing lot and date code. Ensure the DIP-24 package availability aligns with your assembly equipment specifications.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when an octal, non-inverting, registered transceiver is required for bidirectional data flow. The 74FCT series offers faster switching speeds compared to standard 74LS equivalents while maintaining CMOS power efficiency. Consider the 6.5 ns propagation delay and 3-state output characteristics for timing-critical bus applications. Verify that the 24-pin DIP package fits the target PCB footprint and that the 4.75V–5.25V operating range matches the system power supply.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74FCT family of fast CMOS logic devices manufactured by Integrated Device Technology (IDT), now part of Renesas Electronics. The 74FCT543 variant specifically provides registered (latched) functionality, distinguishing it from the non-latched 74FCT541/542 counterparts. These devices are engineered for high-density digital systems requiring reliable data storage and transmission across multiple lines simultaneously.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Cross-reference with Texas Instruments CY74FCT543TSOCT for SOIC-24 packaging compatibility. For PDIP-24 replacements, verify IDT 74FCT543ATP or equivalent generic 74FCT543 DIP packages. Ensure pinout compatibility and electrical parameter alignment before substitution.