CD74FCT240TQM

Overview

The CD74FCT240TQM is an octal inverting buffer and line driver manufactured by Harris Corporation. It belongs to the FCT logic series and utilizes BiCMOS technology. The device features three-state outputs and operates within a supply voltage range of 4.75 V to 5.25 V. It is housed in a 20-pin Thin Small Outline Package (TSOP). The component supports bidirectional data transfer with independent control for each direction, ensuring reliable signal integrity in high-speed digital systems.

Feature Summary

• Octal configuration providing eight independent inverting buffer channels
• Three-state output capability allowing bus line isolation
• BiCMOS construction for enhanced speed and drive strength
• Independent output enable controls for flexible system management

Applications

• High-speed data bus buffering applications
• Clock distribution networks requiring signal inversion
• Memory interface circuits demanding line driving capabilities
• Portable equipment utilizing low-voltage CMOS logic

Procurement Notes

Verify the manufacturer designation as Harris Corporation or its successors, such as Intersil or Renesas, due to corporate acquisitions. Confirm the package type corresponds to the 20-lead TSOP variant. Ensure compatibility with the specified 5V logic family requirements before integration into existing designs.

Selection Notes

Select this component when an octal inverting buffer with three-state outputs is required. The BiCMOS technology offers superior performance compared to standard CMOS alternatives. Consider the specific pinout and thermal characteristics of the TSOP package during PCB layout planning to ensure optimal electrical performance.

Part Context

This part is part of the broader 74FCT logic family, designed for high-speed applications. Harris Corporation was a primary producer of these components before industry consolidations. The device serves as a critical interface element in digital systems, facilitating efficient data movement between microprocessors and peripheral devices.

Replacement Considerations

Check for equivalents from Texas Instruments, such as the CY74FCT240 series, which share similar functional specifications. Verify pin compatibility and electrical parameters against datasheets from current manufacturers like Renesas Electronics to ensure seamless substitution in existing hardware designs.