74ACTQ244QSCX

Buffers, Drivers, Receivers, Transceivers Overview

The onsemi 74ACTQ244QSCX is an octal buffer and line driver utilizing Quiet Series technology. It features 3-STATE outputs, operates at a supply voltage of 4.5V to 5.5V, and supports a temperature range of -40°C to +85°C. The device provides output drive currents of 24 mA with propagation delays up to 7.0 ns at 5.0V and 50 pF load. It includes GTO output control and undershoot correction for improved dynamic threshold performance.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Utilizes FACT 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 design to ensure pin-to-pin skew AC performance.
• Provides 3-STATE outputs suitable for driving bus lines or buffering memory address registers.

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 designation MQA20 (QSOP) matches the required footprint. Confirm the 'Q' suffix indicates the Quarter Size Outline Package variant rather than standard SOIC. Check current availability as this component may be subject to lifecycle changes.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this part when high-density PCB layouts require reduced package size compared to standard SOIC. Ensure the application benefits from the guaranteed simultaneous switching noise reduction provided by the Quiet Series technology over standard AC/ACT logic families.

Buffers, Drivers, Receivers, Transceivers Part Context

This component belongs to the 74ACQ/ACTQ family of octal buffers. It is manufactured using Fairchild's Quiet Series technology, which distinguishes it from standard 74ACT244 devices by offering enhanced noise immunity and dynamic threshold performance through specific internal circuitry improvements.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Standard 74ACT244 variants in SOIC packages may serve as functional substitutes if package constraints allow. Verify that the replacement maintains the 3-STATE output capability and meets the required propagation delay specifications for the target application.