MC74VHC240M

Overview

The MC74VHC240M is an octal bus buffer and line driver manufactured by onsemi. It features inverting logic with three-state outputs and operates within a voltage range of 2V to 5.5V. The device utilizes advanced high-speed CMOS technology, achieving propagation delays as low as 3.6ns at 5V. It includes two active-low output enables and provides power-down protection on inputs. The component is designed for driving bus lines or buffering memory address registers, offering high noise immunity and balanced propagation delays.

Feature Summary

• Octal configuration with inverting three-state outputs
• High-speed operation comparable to Bipolar Schottky TTL
• Input tolerance up to 7V for 5V to 3V system interfacing
• Power-down protection on inputs

Applications

• Driving bus lines
• Buffering memory address registers
• Interfacing 5V systems to 3V systems

Procurement Notes

Verify the specific suffix 'M' against official onsemi documentation to confirm package type and availability status. Cross-reference with RoHS compliance data, as older variants may differ from current Pb-free specifications. Confirm pinout compatibility if replacing existing designs. Check for obsolescence notices or product change notifications associated with this specific marking code.

Selection Notes

Select this component when an octal inverting buffer with three-state control is required. It is suitable for applications needing high-speed signal transmission with low power dissipation. Ensure the supply voltage falls within the 2V to 5.5V range. Consider input voltage tolerance if interfacing with higher voltage logic levels.

Part Context

This part belongs to the 74VHC series of advanced high-speed CMOS logic devices. It is functionally compatible with standard logic families but offers improved speed and lower power consumption. The octal buffer design allows for efficient management of multiple data lines simultaneously in digital circuits.

Replacement Considerations

MC74VHC240DTR2G

FAQ

What is the typical propagation delay of the MC74VHC240M?

The typical propagation delay is 3.6ns at a supply voltage of 5V.

Does the MC74VHC240M have power-down protection?

Yes, the device provides power-down protection on its inputs.