CY74FCT2543CTQCT

Overview

The CY74FCT2543CTQCT is an octal registered bus transceiver from the Texas Instruments FCT logic series. It features eight non-inverting channels with three-state outputs, housed in a 24-pin SSOP package. The device operates within a supply voltage range of 4.75 V to 5.25 V and supports TTL input levels. Key electrical parameters include a propagation delay of 5.5 ns, a high-level output current of -15 mA, and a low-level output current of 12 mA. It functions as a latched transceiver suitable for surface-mount applications across a temperature range of -40°C to +85°C.

Feature Summary

• Octal Registered Transceiver Functionality
• Three-State Output Capability
• TTL-Compatible Input Levels

Applications

• High-speed data bus buffering
• Memory interface registration
• System control signal routing

Procurement Notes

Verify the specific suffix 'QCT' against the manufacturer's official datasheet to confirm the exact tape-and-reel packaging configuration and moisture sensitivity level. Ensure the ordering part number matches the required pin-out and thermal characteristics for your PCB design. Cross-reference the RoHS compliance status directly with the latest product documentation before finalizing procurement orders.

Selection Notes

Select this component when an octal registered transceiver with three-state outputs is required for system integration. The FCT series offers CMOS performance with TTL-compatible inputs, making it suitable for mixed-logic environments. Consider the 24-pin SSOP package dimensions and the specified operating temperature range to ensure compatibility with your board layout and environmental constraints.

Part Context

This component belongs to the Texas Instruments CY74FCT574T family of fast CMOS logic devices. The FCT series is designed to provide high-speed operation while maintaining compatibility with standard TTL logic families. As a registered transceiver, it combines bus driving capabilities with data storage, facilitating efficient data transfer in complex digital systems requiring precise timing and signal integrity.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.