MC74ACT240MR2

Overview

The MC74ACT240MR2 is an octal buffer and line driver manufactured by onsemi, belonging to the ACT logic series. It features eight input lines and eight output lines with inverting polarity. The device utilizes a TSSOP-20 package for surface-mount installation. Electrical specifications include a high-level output current of -24 mA and a low-level output current of 24 mA. Static current is specified at 4 uA, while operating supply current reaches 40 uA. The power supply voltage range spans from a minimum of 4.5 V to a maximum of 5.5 V. Propagation delay is rated at 8.5 ns at 5 V. The component operates within a temperature range of -40 C to +85 C.

Feature Summary

• Provides octal buffering and line driving capabilities with three-state outputs
• Features inverting logic polarity for signal inversion applications
• Supports surface-mount technology via TSSOP-20 packaging

Applications

• Bus-oriented memory and address drivers
• Clock drivers and buffer circuits
• General-purpose digital signal routing

Procurement Notes

Verify the specific manufacturer part number against official onsemi documentation to ensure compatibility with design requirements. Confirm that the TSSOP-20 package dimensions and pinout align with the intended PCB layout. Check for any recent product change notices or lifecycle status updates directly from the manufacturer before finalizing procurement decisions.

Selection Notes

Select this component when an octal inverting buffer with three-state control is required for 5V logic systems. Ensure the application demands the specific propagation delay and drive current characteristics provided by the ACT series. Verify that the operating temperature range meets the environmental conditions of the target system.

Part Context

This component is part of the broader 74ACT family of high-speed CMOS logic devices produced by onsemi. It shares functional similarities with other octal buffers like the MC74AC240 but offers distinct electrical characteristics associated with the ACT series. The device serves as a standard solution for interfacing between different logic levels or driving multiple loads in digital circuits.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.