MC74ACT240MELG

Overview

The MC74ACT240MELG is an octal buffer and line driver manufactured by onsemi, belonging to the 74ACT logic series. It features inverting outputs with three-state capability, designed for memory address driving, clock distribution, and bus-oriented transmission or reception applications. The device operates on a single supply voltage ranging from 4.5V to 5.5V. It provides high drive strength with output currents of 24mA for both high and low states. The component is housed in a 20-SOIC package and supports surface mount mounting types.

Feature Summary

• Octal configuration providing eight independent buffer channels within a single integrated circuit
• Three-state output architecture enabling direct connection to system buses without external switching hardware
• Inverted logic function suitable for signal inversion and bus direction control applications

Applications

• Memory address drivers for computer systems
• Clock signal distribution networks
• Bus-oriented transmitter and receiver circuits

Procurement Notes

Verify current availability status as this component may be obsolete. Confirm package dimensions against PCB footprint requirements. Check RoHS compliance documentation for environmental regulations. Ensure supply voltage matches system design specifications before integration.

Selection Notes

Select this part for designs requiring multiple buffered signals with bus isolation capabilities. Consider the ACT series speed and power characteristics relative to standard TTL loads. Verify input compatibility with source logic levels. Evaluate thermal performance for the specific operating environment.

Part Context

This component belongs to the 74ACT family of high-speed CMOS logic devices. It serves as a functional equivalent to other octal buffers like the 74ACT244, though with inverted outputs. The device bridges the gap between standard logic speeds and higher performance requirements in digital systems.

Replacement Considerations

Public confirmed substitute part numbers include MC74ACT240DWCR2.