74ACTQ240SC

Buffers, Drivers, Receivers, Transceivers Overview

The onsemi 74ACTQ240SC is an octal buffer and line driver featuring inverting 3-STATE outputs. It utilizes FACT Quiet Series technology to reduce simultaneous switching noise and improve dynamic threshold performance. The device operates within a supply voltage range of 4.5V to 5.5V and supports an operating temperature from -40°C to +85°C. Outputs provide source/sink currents of 24mA with propagation delays of up to 7.5ns at 5V. It is housed in a 20-Lead Small Outline Integrated Circuit (SOIC) package.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Utilizes FACT Quiet Series technology for reduced simultaneous switching noise and improved dynamic threshold performance
• Features inverting 3-STATE outputs suitable for driving bus lines or buffering memory address registers
• Provides enhanced latch-up immunity compared to standard ACT devices

Buffers, Drivers, Receivers, Transceivers Applications

• Memory address drivers
• Clock drivers
• Bus oriented transmitters or receivers

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific manufacturer origin, as this part number was originally distributed by Fairchild Semiconductor before acquisition by onsemi. Confirm that the datasheet revision matches the required specifications for your design. Ensure compliance with any lifecycle status updates regarding production availability.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when low noise performance is critical for high-density PCB designs requiring multiple simultaneous output switches. It serves as a direct replacement for standard 74ACT240 devices where tighter skew and reduced ground bounce are necessary. Verify input voltage compatibility with the 4.5V to 5.5V operating range.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the 74ACQ/ACTQ Quiet Series family of logic ICs. These components are designed to offer superior electrical characteristics over standard AC/ACT logic families, specifically targeting applications sensitive to electromagnetic interference and signal integrity issues caused by rapid digital switching.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The 74ACT240SC is a functional equivalent but lacks the specific noise reduction features of the Q-series. Check pinout compatibility if substituting with other octal buffers.