MC74ACT240DWR2

Overview

The MC74ACT240DWR2 is an octal buffer and line driver from the ACT logic series, manufactured by onsemi. It features inverting outputs with three-state capability, designed for memory address drivers, clock drivers, and bus-oriented transmitters or receivers. The device operates within a supply voltage range of 4.5 V to 5.5 V. It provides improved printed circuit board density through reduced ICC and IOZ currents. The component utilizes a 20-pin SOIC package and supports TTL-compatible inputs while delivering CMOS output levels.

Feature Summary

• Octal buffer and line driver configuration with inverting functionality
• Three-state outputs enable efficient bus line driving and memory address buffering
• TTL-compatible input levels ensure compatibility with standard logic families
• Reduced power consumption characteristics for improved system efficiency

Applications

• Memory address driver applications
• Clock signal distribution systems
• Bus-oriented transmitter and receiver circuits

Procurement Notes

Verify the specific suffix DWR2 against official datasheets to confirm package dimensions and tape-and-reel specifications. Ensure the procurement source provides genuine onsemi components with valid traceability documentation. Cross-reference the part number with current manufacturer catalogs to confirm availability status and any potential obsolescence notices prior to finalizing orders.

Selection Notes

Select this component when designing systems requiring octal buffering with three-state control and TTL input compatibility at 5V operation. Consider the ACT series performance characteristics for applications needing moderate speed and drive strength. Evaluate the 20-SOIC package constraints against available PCB real estate and thermal requirements during the design phase.

Part Context

This part belongs to the 74ACT family of high-speed CMOS logic devices. It serves as a critical interface component in digital systems, facilitating data transfer between microprocessors and peripheral devices. The ACT series offers performance improvements over earlier AC and HC families while maintaining pin-out compatibility with legacy designs.

Replacement Considerations

Direct substitutes include MC74ACT240DWGR2G. Other compatible options may include equivalent octal buffers from other manufacturers adhering to the 74ACT specification.