74ACQ244SC

Buffers, Drivers, Receivers, Transceivers Overview

The onsemi 74ACQ244SC is an octal buffer and line driver utilizing Fairchild Quiet Series technology. It features 3-STATE outputs, operates within a 2.0V to 6.0V supply range, and supports -40°C to +85°C temperatures. Propagation delays are 9.0 ns max at 3.3V and 6.5 ns max at 5.0V (CL=50pF). Outputs source/sink 24 mA with quiescent current of 40 µA max.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Utilizes Quiet Series technology for guaranteed simultaneous switching noise levels and improved dynamic threshold performance.
• Features GTO output control and undershoot corrector for superior switching characteristics.
• Provides split ground bus architecture to enhance PC board density and latch-up immunity.

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 the manufacturer's official documentation to confirm package type and tape/reel availability. The datasheet indicates that appending the letter 'X' specifies Tape and Reel packaging. Ensure compatibility with system voltage requirements and temperature ranges before procurement.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when reduced ICC and IOZ currents are required compared to standard AC/ACT devices. It offers faster propagation delays than standard counterparts. Verify pin-to-pin skew AC performance requirements and ensure the application benefits from the improved dynamic threshold performance provided by the Quiet Series technology.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the 74ACQ family of octal buffers. It is designed to replace standard AC/ACT244 devices where lower noise and higher speed are critical. The SC suffix denotes the 20-Lead Small Outline Integrated Circuit (SOIC) package.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Datasheet confirms faster propagation delays than standard AC/ACT244. No specific substitute part numbers are listed in the provided text.

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 package affect performance?

The device utilizes a split ground bus architecture to provide superior performance and improved PC board density.