CY74FCT543TSOCT

Overview

The CY74FCT543TSOCT is an octal registered bus transceiver manufactured by Texas Instruments. It operates within a supply voltage range of 4.75 V to 5.25 V and features TTL-compatible input and output levels. The device provides three-state outputs with a propagation delay of 8.5 ns. It supports low-level output currents of 64 mA and high-level output currents of -32 mA. The component functions as a non-inverting latched transceiver with eight channels, housed in an SOIC-24 package. It is designed for surface mount installation and operates reliably across temperatures from -40°C to +85°C.

Feature Summary

• Octal registered bus transceiver with three-state outputs
• TTL-compatible input and output logic levels
• Non-inverting data transfer functionality

Applications

• High-speed data bus systems requiring registered buffering
• Memory mapping applications involving octal data paths
• General-purpose digital signal routing in industrial environments

Procurement Notes

Verify the specific suffix 'SOCT' against official Texas Instruments documentation to confirm the exact tape-and-reel packaging configuration and moisture sensitivity level. Ensure compatibility with standard SOIC-24 footprint designs during procurement planning. Cross-reference the manufacturer part number directly with current datasheets to validate active status and any recent design changes or obsolescence notices before finalizing orders.

Selection Notes

Select this component when an octal width registered transceiver with three-state capability is required. The FCT logic series offers speed comparable to LS-TTL with CMOS power consumption. Verify that the 8.5 ns propagation delay meets system timing requirements. Confirm that the SOIC-24 package size fits the available board space and that the operating temperature range aligns with the intended application environment.

Part Context

This part belongs to the Texas Instruments CY74FCT543T series of registered bus transceivers. These devices are engineered for high-performance digital systems needing reliable data storage and transmission. The series utilizes advanced CMOS technology to provide robust performance while maintaining low power dissipation standards typical of modern logic families.

Replacement Considerations

Consult official substitution guides for compatible parts within the same FCT family. Verify pinout compatibility and electrical specifications such as voltage ranges and drive strengths before replacing.