CY74FCT240CTQC

Overview

The CY74FCT240CTQC is an octal buffer and line driver from Texas Instruments' FCT logic series. It features eight inverting outputs with three-state capability, housed in a 20-pin SSOP package. The device operates within a supply voltage range of 4.75 V to 5.25 V. Key electrical parameters include a maximum high-level output current of -32 mA and a low-level output current of 64 mA. Propagation delay is specified at 4.8 ns at 5 V. It supports TTL input and output levels and functions across an operating temperature range of -40°C to +85°C.

Feature Summary

• Provides octal buffering with inverting logic functionality for signal conditioning.
• Features three-state outputs to facilitate bus-oriented architectures and system isolation.
• Supports TTL-compatible input and output voltage levels for broad interface compatibility.

Applications

• Bus-oriented memory and address drivers
• Clock distribution and buffering
• Signal driving between different logic families

Procurement Notes

Verify the specific suffix 'CTQC' against the manufacturer's official datasheet to confirm the exact package type (SSOP) and tape-and-reel packaging configuration. Ensure the component meets required RoHS compliance standards for your assembly process. Cross-reference the full part number with Texas Instruments documentation to validate availability status and any potential obsolescence notices before finalizing procurement plans.

Selection Notes

Select this component when designing systems requiring octal inverting buffers with three-state control. It is suitable for applications needing TTL-level interfacing and moderate drive strength. Consider the SSOP package constraints for PCB layout. Verify that the 4.75 V to 5.25 V supply voltage aligns with the system power rails and that the propagation delay meets timing requirements.

Part Context

This component belongs to the Texas Instruments 74FCT family, which combines CMOS density with TTL speed. The 74FCT240 variant specifically provides octal buffering. The CY prefix indicates it is a Cypress/Texas Instruments branded part within this logic family, designed for high-performance digital applications requiring reliable signal transmission and isolation.

Replacement Considerations

Compatible substitutes include SN74FCT240 variants from Texas Instruments or equivalent octal buffer ICs from other manufacturers offering similar FCT specifications. Ensure replacement parts match the 20-pin SSOP package and maintain identical electrical characteristics, including voltage ranges and drive currents.