74FCT543ATQG

Buffers, Drivers, Receivers, Transceivers Overview

The IDT 74FCT543ATQG is an octal registered bus transceiver belonging to the FCT logic series. It features a single functional unit with eight bidirectional data bits and true output polarity. The device utilizes CMOS technology and provides three-state outputs for effective bus management. It operates within a supply voltage range of 4.75V to 5.25V and supports TTL-compatible input and output levels. The component is housed in a 24-pin QSOP package and is rated for an industrial operating temperature range from -40°C to +85°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides registered bidirectional data transfer capability for system buses
• Features three-state outputs to facilitate multiple driver connections on shared lines
• Ensures signal integrity through internal latching mechanisms

Buffers, Drivers, Receivers, Transceivers Applications

• High-performance memory mapping systems
• Bus-oriented architectures requiring data registration
• I/O port buffering applications

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific manufacturer source, as IDT assets are managed by Renesas Electronics. Confirm the exact suffix designation matches the required package type and speed grade. Ensure compliance with current environmental regulations and check for any product discontinuation notices or lifecycle status updates before finalizing procurement plans.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems that require registered data storage alongside bidirectional bus driving capabilities. It serves as a suitable replacement for older ABT family functions due to its high-speed performance and low power consumption characteristics. Consider the QSOP package constraints and thermal requirements during the layout phase.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the widely adopted 74FCT logic family, designed to bridge the performance gap between standard TTL and advanced CMOS technologies. The FCT series is characterized by its compatibility with existing TTL designs while offering significantly faster switching speeds and lower power dissipation, making it ideal for modern digital interface applications.