74ACTQ240PC

Buffers, Drivers, Receivers, Transceivers Overview

The onsemi 74ACTQ240PC is an octal buffer and line driver featuring inverting 3-STATE outputs. It utilizes Quiet Series technology to reduce ICC and IOZ by 50% while guaranteeing simultaneous switching noise levels and dynamic threshold performance. The device provides improved latch-up immunity and faster propagation delays compared to standard ACT240 devices. It operates within a supply voltage range of 4.5V to 5.5V, with outputs capable of sourcing and sinking 24mA. Propagation delay is guaranteed at a maximum of 7.5ns at 5.0V with a 50pF load.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Utilizes FACT Quiet Series technology for reduced power consumption and guaranteed quiet output switching
• Features inverting 3-STATE outputs suitable for driving bus lines or buffering memory address registers
• Provides improved latch-up immunity and superior dynamic threshold performance
• Guarantees pin-to-pin skew AC performance for precise timing applications

Buffers, Drivers, Receivers, Transceivers Applications

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

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package variant against the datasheet ordering information, as the 'PC' suffix typically denotes a PDIP package which may not be listed in the primary SOIC/SOP table. Confirm RoHS compliance status directly with the manufacturer, as legacy Fairchild documentation may require cross-referencing current onsemi compliance declarations. Ensure the source document matches the exact revision required for your design specifications.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when high-density PCB layouts require octal buffering with minimized simultaneous switching noise. The 3-STATE capability allows for efficient bus sharing. Consider the ACTQ series over standard ACT devices if stricter dynamic threshold performance and lower quiescent current are necessary for the application environment.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74ACTQ family, an evolution of the standard 74ACT logic series. The 'Q' designation indicates the inclusion of Fairchild's Quiet Series technology, which addresses noise issues common in high-speed digital systems. It serves as an octal version of single-buffer logic families, providing eight independent channels in a single package.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Public confirmed substitute part numbers: None found in provided documentation.