MC74ACT240DWG

Overview

The MC74ACT240DWG is an octal buffer and line driver manufactured by onsemi, belonging to the 74ACT logic series. It features eight inverting channels with three-state outputs housed in a 20-pin SOIC-W package. The device operates within a supply voltage range of 4.5 V to 5.5 V. Key electrical specifications include a propagation delay of 8.5 ns at 5 V, high-level output current of -24 mA, and low-level output current of 24 mA. Static current is specified at 4 uA, with a maximum operating temperature of +85 C.

Feature Summary

• Provides eight independent inverting buffer channels for signal conditioning
• Features three-state outputs to facilitate bus-oriented architectures
• Utilizes advanced CMOS technology for low power consumption

Applications

• Bus-oriented systems requiring signal buffering
• Memory address drivers
• Clock distribution networks

Procurement Notes

Verify the specific suffix DWG corresponds to the 20-pin SOIC-W package configuration. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure design compatibility with the 4.5 V to 5.5 V operating voltage range. Check for any obsolescence notices or lifecycle changes associated with this specific part number from onsemi.

Selection Notes

Select this component when designing systems requiring octal inverting buffers with three-state control capabilities. It is suitable for applications needing high drive strength of 24 mA. Consider the 8.5 ns propagation delay for timing constraints. Compare against non-inverting variants like the 74ACT541 if signal polarity preservation is required instead of inversion.

Part Context

This component is part of the 74ACT family of high-speed CMOS logic devices produced by onsemi. It serves as a digital buffer and line driver, distinct from flip-flop variants such as the 74ACT374 or 74ACT574 which provide storage functions. The device complements other logic ICs by providing signal isolation and driving capability for digital circuits.

Replacement Considerations

The MC74ACT240DWG is scheduled for obsolescence by the manufacturer. Designers should evaluate alternative sources or updated part numbers from onsemi that maintain functional equivalence. Verify pinout and electrical characteristics before substituting with similar octal buffer devices.