IDT74FCT2543TQ

Overview

The IDT74FCT2543TQ is a registered bus transceiver belonging to the FCT series, manufactured using CMOS technology. It features one functional unit with eight bits per direction and provides true outputs. The device operates within a supply voltage range of 4.75V to 5.25V and supports bidirectional data transfer. It utilizes a 24-pin QSOP package and is designed for high-speed applications requiring registered data storage capabilities.

Feature Summary

• Provides registered bidirectional data transfer between two ports
• Features independent output enable control for each direction
• Includes master control functionality for the internal latch mechanism

Applications

• High-speed memory interface circuits
• Data bus buffering in computing systems
• Registered data transmission lines

Procurement Notes

Verify the specific suffix 'TQ' against manufacturer documentation to confirm the exact package type and temperature grade. Ensure compatibility with existing PCB footprints for the 24-pin QSOP configuration. Check for lead-free compliance requirements if RoHS standards are mandatory for the target assembly process.

Selection Notes

Select this component when registered bus transceiver functionality is required for 8-bit wide data paths. It is suitable for designs needing independent direction control and latched outputs. Consider the operating temperature range and supply voltage specifications to ensure alignment with system power rails and environmental conditions.

Part Context

This part belongs to the IDT 74FCT logic family, which offers fast CMOS performance compatible with TTL inputs and outputs. The 74FCT2543 variant specifically integrates registration capabilities, distinguishing it from standard unregistered bus transceivers like the 74FCT543. It serves as a bridge between high-speed digital components requiring data synchronization.