MC74VHC240DW

Overview

The MC74VHC240DW is an octal bus buffer and line driver manufactured by onsemi. It features inverting outputs with three-state capability and operates within a supply voltage range of 2V to 5.5V. The device utilizes advanced high-speed CMOS technology, providing balanced propagation delays and low power dissipation. It includes two active-low output enables for bus management. The component is housed in a 20-SOIC package and supports operation across a temperature range of -40°C to 85°C.

Feature Summary

• Octal configuration with dual four-bit sections
• Three-state output control via active-low enables
• High noise immunity and stable output performance
• Compatible with standard logic family pinouts

Applications

• Driving bus lines in digital systems
• Buffering memory address registers
• Interface between 5V and 3V system domains

Procurement Notes

Verify the specific suffix against official documentation, as ordering codes may indicate variations in packaging or environmental compliance. Confirm RoHS status and lead times directly with the manufacturer or authorized distributors, as availability and specifications can change without notice.

Selection Notes

Select this component for applications requiring high-speed data buffering with low power consumption. Ensure the design accommodates the 2V to 5.5V operating range and utilizes the active-low enable inputs for proper bus arbitration. Verify that the 20-SOIC package fits the PCB layout constraints.

Part Context

This part belongs to the 74VHC series of advanced high-speed CMOS logic devices. It is functionally compatible with other standard logic families while offering improved speed and lower power characteristics. The octal buffer design allows for efficient handling of wide data buses in complex digital circuits.

Replacement Considerations

Direct replacements include the MC74VHC240DWR2G. Cross-vendor alternatives such as the SN74AHC240NSR may be considered if electrical parameters align with the application requirements.