74FCT543ATQG

Buffers, Drivers, Receivers, Transceivers Overview

The 74FCT543ATQG is an octal bus transceiver manufactured by Renesas Electronics Corporation. It features non-inverting logic with three-state outputs and operates within a supply voltage range of 4.5 V to 5.5 V. The device utilizes a QSOP-20 package and supports surface mount installation. It functions as a single circuit element with eight bits per element, designed for high-speed data transfer applications in industrial and commercial environments.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides non-inverting data transmission between two buses
• Features three-state outputs for effective bus line management
• Supports direct interface with TTL and CMOS logic families

Buffers, Drivers, Receivers, Transceivers Applications

• High-speed data bus architectures
• Memory buffer implementations
• I/O port expansion circuits

Buffers, Drivers, Receivers, Transceivers Procurement Notes

This component is officially designated as End-of-Life (EOL) by the manufacturer. Production has ceased, and no new units are being manufactured. Procurement efforts should focus on verifying the authenticity of existing stock from authorized distributors or secondary market suppliers. Buyers must conduct rigorous quality inspections to ensure component integrity before integration into designs.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Engineers requiring this specific part number must account for its obsolete status when designing new products. Alternative selection should prioritize components with active manufacturing lifecycles to ensure long-term supply chain stability. Compatibility checks regarding pin configuration and electrical specifications are essential when evaluating substitute devices from other manufacturers.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the 74FCT series of fast CMOS logic integrated circuits. The series is characterized by high-speed operation and compatibility with standard logic families. The 74FCT543 variant specifically addresses the need for bidirectional data flow control in complex digital systems, serving as a critical interface component in legacy and specialized electronic equipment.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Publicly confirmed substitute part numbers include CY74FCT2543ATQCT. Designers should verify functional equivalence and pinout compatibility before transitioning to alternative sources due to the primary model's discontinued status.