QS74FCT2543TSO

Buffers, Drivers, Receivers, Transceivers Overview

The QS74FCT2543TSO is an octal registered bus transceiver manufactured by Quality Semiconductor, belonging to the FCT logic series. It features a single functional unit with eight bits per element and non-inverting true outputs. The device utilizes CMOS technology and provides three-state output capability for bidirectional data transfer. It operates within a supply voltage range of 4.75V to 5.25V and supports independent control configurations. The component is housed in a 20-pin Small Outline Package (SOP) suitable for surface mount applications.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal Registered Bus Transceiver architecture providing bidirectional data transfer capabilities
• Three-state output design allowing effective bus line management
• CMOS construction ensuring compatibility with standard logic families
• Independent control functionality for precise direction and latch management

Buffers, Drivers, Receivers, Transceivers Applications

• Bidirectional data bus buffering in high-speed digital systems
• Memory interface circuits requiring registered data storage
• I/O expansion modules for microprocessor-based designs
• Data acquisition systems utilizing parallel data transmission

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the manufacturer designation as Quality Semiconductor or its successor entities, as corporate acquisitions may affect part numbering conventions. Confirm the specific package variant matches the 20-pin SOP requirement. Ensure compliance with relevant environmental standards if applicable to the target deployment region. Cross-reference datasheet revisions to confirm pinout consistency with existing system designs.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when an octal width is required for registered bus interfacing. The FCT series offers speed advantages over standard TTL equivalents while maintaining CMOS power efficiency. Verify that the 20-pin footprint aligns with the printed circuit board layout constraints. Consider the operating temperature range and supply voltage stability requirements of the host system before finalizing the selection.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the 74FCT family of high-speed CMOS logic devices. The FCT series bridges the performance gap between standard TTL and advanced CMOS technologies. Octal transceivers in this family are commonly used for managing wide data buses in computer architectures and industrial control systems where signal integrity and timing precision are critical.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

QS74FCT2543ATSO is a documented substitute offering similar functionality with potentially different electrical characteristics. CY74FCT2543 variants from Texas Instruments provide equivalent registered transceiver functions in compatible packages. IDT QS74FCT543ATP serves as a related alternative within the same logical family.