74FCT240SC

Buffers, Drivers, Receivers, Transceivers Overview

The National Semiconductor 74FCT240SC is an octal buffer and line driver belonging to the FCT logic series. It features two independent 4-bit drivers with inverted outputs and three-state control. The device utilizes CMOS technology and operates within a standard 5V supply voltage range. It is housed in a 20-lead plastic small outline package (SOIC) designed for surface mount applications, providing high-speed data transmission capabilities suitable for bus-oriented systems.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides dual 4-bit buffering with inverted output polarity
• Features three-state outputs for efficient bus management
• Utilizes FCT CMOS technology for high-speed performance

Buffers, Drivers, Receivers, Transceivers Applications

• Bus-oriented memory systems
• Clock drivers
• Buffering registers

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the manufacturer origin carefully, as National Semiconductor assets were acquired by Texas Instruments. Confirm that the specific 'SC' suffix corresponds to the SOIC-20 package variant. Ensure the component meets current RoHS compliance requirements if applicable to your manufacturing standards. Cross-reference datasheets from both original and successor manufacturers for pinout consistency.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring octal buffering with active-low outputs. The FCT series offers faster switching speeds compared to standard TTL or LS logic families. Consider the SOIC-20 package constraints regarding board space and thermal dissipation. Verify input/output voltage compatibility with the rest of the system logic levels before integration.

Buffers, Drivers, Receivers, Transceivers Part Context

This component is part of the broader 74FCT family of high-speed CMOS logic devices. It serves as a buffer solution for digital signal routing. Similar parts in the series include non-inverting variants like the 74FCT244. The device represents a transition technology between older bipolar logic and modern low-power CMOS solutions.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Compatible substitutes include the SN74FCT240SC produced by Texas Instruments following the acquisition of National Semiconductor assets. Other equivalents may include the PI74FCT240DTS from Pericom/Diodes Incorporated, provided the package and electrical characteristics match.