QS74FCT646ATQ

Buffers, Drivers, Receivers, Transceivers Overview

The QS74FCT646ATQ is an octal bus transceiver and register manufactured by Quality Semiconductor. It features true output logic within the FCT series, utilizing CMOS technology for low power consumption. The device supports 3-state outputs and includes internal D-type flip-flops for data storage. It operates with standard TTL input and output compatibility, ensuring reliable signal interfacing in digital systems.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal bus transceiver with integrated 3-state D-type flip-flops for multiplexed data transmission
• True TTL input and output compatibility with low leakage current characteristics
• Control circuitry manages real-time or stored data transfer via dedicated select pins

Buffers, Drivers, Receivers, Transceivers Applications

• High-speed data bus interfaces requiring registered storage
• Multiplexed data transmission systems
• Digital logic circuits needing TTL-compatible I/O buffering

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify component authenticity as this part may be sourced from secondary markets. Confirm manufacturing date codes and lot traces to ensure compliance with RoHS standards. Check for physical markings matching Quality Semiconductor identifiers. Validate package integrity against SSOP specifications before integration into production lines.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when a registered octal transceiver with TTL compatibility is required. Ensure design requirements align with FCT series electrical characteristics. Verify that the 24-pin SSOP package fits the PCB layout constraints. Consider availability status as this specific manufacturer variant may have limited supply chains compared to major distributors.

Buffers, Drivers, Receivers, Transceivers Part Context

This component belongs to the 74FCT logic family, which bridges Fast CMOS speed with TTL compatibility. Similar parts include IDT74FCT646 variants and Texas Instruments CY74FCT646 models. These devices share functional similarities but may differ in packaging options or specific grade classifications such as industrial versus military ratings.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct substitutes include IDT74FCT646ATSO and Texas Instruments CY74FCT646ATQCT. Verify pinout compatibility and electrical parameters before substitution. Note that some alternatives may offer different package styles or updated manufacturing processes.