CY74FCT240TQCT

Overview

The CY74FCT240TQCT is an octal buffer and line driver manufactured by Texas Instruments under the FCT logic series. It features eight inverting inputs with three-state outputs housed in a QSOP-20 package. The device operates within a supply voltage range of 4.75 V to 5.25 V. Key electrical parameters include a propagation delay of 8 ns at 5 V, high-level output current of -32 mA, and low-level output current of 64 mA. Static current is specified at 100 nA, with a maximum operating temperature of +85°C.

Feature Summary

• Provides tri-state control for eight independent data lines
• Features inverting logic polarity for signal buffering
• Supports CMOS technology with TTL-compatible input levels

Applications

• Memory address buffering
• Clock driver circuits
• Bus-oriented transmissions

Procurement Notes

Verify the manufacturer designation carefully, as official documentation lists Texas Instruments as the producer for this part number. Confirm the specific suffix 'TQC' corresponds to the QSOP-20 package variant. Ensure compliance with RoHS requirements if applicable to the project specifications. Cross-reference the datasheet version to confirm parameter accuracy.

Selection Notes

Select this component when an octal inverting buffer with three-state capability is required for 5V logic systems. The FCT series offers faster switching speeds compared to standard 74LS equivalents. Consider the QSOP-20 package constraints for PCB layout. Verify that the 8 ns propagation delay meets the timing requirements of the target application.

Part Context

This component belongs to the CY74FCT240T family of bus drivers. It serves as a digital logic interface for managing data flow in microprocessor-based systems. The device is designed for high-speed applications requiring reliable signal integrity across multiple channels simultaneously.

Replacement Considerations

CY74FCT240ATSOCT is a documented substitute offering similar functionality in a SOIC-20 package.