CY74FCT2543TQCT

Overview

The CY74FCT2543TQCT is an octal registered bus transceiver manufactured by Texas Instruments. It belongs to the FCT logic series and features eight channels with TTL-compatible input and output levels. The device provides tri-state outputs for effective bus management. It operates within a supply voltage range of 4.75 V to 5.25 V and supports surface-mount installation in a QSOP-24 package. The component functions as a non-inverting registered transceiver suitable for high-speed digital applications.

Feature Summary

• Octal registered bus transceiver architecture with tri-state outputs
• TTL-compatible input and output voltage levels
• Non-inverting signal polarity for data integrity

Applications

• High-speed data bus systems requiring registered buffering
• Memory interface circuits utilizing TTL logic standards
• Digital communication links needing tri-state isolation

Procurement Notes

Verify the specific suffix TQCT against official datasheets to confirm the QSOP-24 package type and reel packaging configuration. Ensure compatibility with 5V logic families and check moisture sensitivity handling requirements during assembly. Confirm RoHS compliance status through manufacturer documentation before integration into production workflows.

Selection Notes

Select this component when designing systems requiring registered octal data transfer with TTL level compatibility. It is appropriate for applications needing tri-state control on bidirectional buses. Consider the QSOP-24 footprint constraints and operating temperature range of -40°C to +85°C during PCB layout and thermal management planning.

Part Context

This part is part of the CY74FCT2543 family, which includes variants like CY74FCT2543CTSOC and CY74FCT2543ATSOC. These devices share the core functionality of octal registered transceivers but differ in package types such as SOIC or QSOP. The FCT series is designed for CMOS technology with TTL compatibility, offering improved speed over standard LS logic families.