74FCT543ATSOG8

Buffers, Drivers, Receivers, Transceivers Overview

The 74FCT543ATSOG8 is an octal latched bus transceiver manufactured by Renesas Electronics. It operates within a supply voltage range of 4.75 V to 5.25 V and features low input and output leakage currents of 1 μA maximum. The device provides true TTL input and output compatibility with a typical high-level output voltage of 3.3 V. It is available in A and C grades and utilizes a 20-pin SOIC package.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal latched bus transceiver architecture
• True TTL input and output compatibility
• Low input and output leakage current

Buffers, Drivers, Receivers, Transceivers Applications

• Memory buffer applications
• Clock drivers
• Bus-oriented architectures

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific grade (A or C) required for your design, as performance characteristics may vary between them. Confirm that the 20-SOIC package aligns with your PCB footprint requirements. Ensure the 4.75 V to 5.25 V operating voltage range matches your system power rails. Check for RoHS compliance status if environmental regulations apply to your manufacturing process.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when an octal bus transceiver with latching capability is needed for data storage during bus transitions. It is suitable for systems requiring TTL compatibility at 3.3 V logic levels. Consider the low leakage current for applications sensitive to static power consumption. Verify that the propagation delay specifications meet your timing constraints before finalizing the design.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74FCT series of fast CMOS logic devices from Renesas Electronics. The FCT series is designed to bridge the gap between standard TTL and CMOS technologies, offering high-speed performance with CMOS power efficiency. The 74FCT543 variant specifically provides latched functionality for bus holding applications.

Buffers, Drivers, Receivers, Transceivers FAQ

What is the typical high-level output voltage (VOH) of the 74FCT543ATSOG8?

The typical high-level output voltage (VOH) is 3.3 V, providing true TTL compatibility.

Does the 74FCT543ATSOG8 support latching functionality?

Yes, it is an octal latched bus transceiver, allowing data to be held on the outputs independently of the inputs after the latch signal is activated.