74FCT240APC

Buffers, Drivers, Receivers, Transceivers Overview

The National Semiconductor 74FCT240APC is an octal buffer and line driver belonging to the FCT logic family. It features eight inverting outputs with three-state capability, allowing for effective bus management in digital systems. The device operates within a supply voltage range of 4.75 V to 5.25 V and supports surface-mount or through-hole installation depending on the specific package variant. Designed for high-speed applications, it provides robust drive strength suitable for driving multiple loads while maintaining signal integrity across standard operating temperatures.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides eight inverting output channels with independent control
• Features three-state outputs to prevent bus contention during data transfer
• Utilizes CMOS technology for low power consumption relative to performance

Buffers, Drivers, Receivers, Transceivers Applications

• Memory address and data bus buffering
• Clock distribution networks requiring signal inversion
• I/O port expansion in embedded controller architectures

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the exact suffix code against the manufacturer's current datasheet to confirm pin compatibility and package dimensions. Ensure the selected variant matches the required thermal dissipation characteristics for the intended enclosure. Cross-reference the date code and manufacturing origin to guarantee alignment with long-term availability requirements for production runs.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems that require high-speed octal buffering with active-low enable controls. Consider the specific package type based on PCB space constraints and thermal management needs. Evaluate the propagation delay specifications against the system clock frequency to ensure timing margins are sufficient for reliable operation under worst-case voltage and temperature conditions.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the widely adopted 74FCT series, which bridges the performance gap between standard TTL and advanced CMOS families. It serves as a foundational building block for legacy and industrial digital designs requiring reliable octal data handling. The FCT architecture ensures compatibility with existing 5V logic standards while offering improved switching speeds compared to earlier generations.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Equivalent parts include the SN74FCT240ATQCT from Texas Instruments and the 74FCT240TPG from IDT. Verify pinout consistency and electrical parameters before substitution.