74ACTQ244PC

Buffers, Drivers, Receivers, Transceivers Overview

The onsemi 74ACTQ244PC is an octal buffer and line driver featuring 3-state outputs, housed in a 20-lead Plastic Dual-In-Line (PDIP) package. It operates within a supply voltage range of 4.5V to 5.5V and supports temperatures from -40°C to +85°C. The device provides propagation delays with maximum values of 7.0ns at 5.0V, output enable times up to 9.0ns, and disable times up to 10.0ns. Outputs source or sink 24mA, while quiescent supply current is limited to 40.0µA.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Utilizes Quiet Series technology for guaranteed simultaneous switching noise levels and dynamic threshold performance.
• Features GTO output control and undershoot corrector for superior switching characteristics.
• Includes split ground bus architecture to enhance overall circuit performance.
• Provides improved latch-up immunity compared to standard AC/ACT logic families.

Buffers, Drivers, Receivers, Transceivers Applications

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

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering code suffix against manufacturer documentation to confirm package type and reel specifications. Ensure compatibility with existing PCB footprints for the 20-lead PDIP configuration. Confirm that system requirements align with the specified operating temperature and voltage ranges before finalizing procurement decisions.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when high-density board designs require reduced simultaneous switching noise and improved dynamic thresholds. It serves as a suitable replacement for standard AC/ACT244 devices where faster propagation delays and enhanced noise immunity are necessary. Verify input voltage compatibility with TTL standards for ACT series integration.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the FACT Quiet Series family, designed to improve PC board density through advanced switching technologies. It functions as an octal buffer and line driver, offering three-state outputs capable of driving bus lines or buffering memory address registers effectively.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Standard AC/ACT244 devices may serve as functional replacements if noise performance requirements are relaxed. Verify pin-to-pin skew AC performance and dynamic threshold specifications to ensure system stability during transition.

Buffers, Drivers, Receivers, Transceivers FAQ

What technology ensures quiet output switching?

Fairchild Quiet Series technology guarantees quiet output switching and improved dynamic threshold performance.

How does the device handle simultaneous switching noise?

It features guaranteed simultaneous switching noise levels and utilizes GTO output control with an undershoot corrector.