74ACTQ240SJ

Buffers, Drivers, Receivers, Transceivers Overview

The onsemi 74ACTQ240SJ is an octal buffer and line driver featuring inverting 3-STATE outputs. It operates within a supply voltage range of 4.5V to 5.5V and supports an operating temperature from -40°C to +85°C. The device provides high drive capability with output currents of ±24mA. Propagation delays are typically 5.5ns at 5.0V, with maximums up to 7.5ns. Output enable times reach 9.0ns, while disable times are up to 10.0ns. Quiescent current is limited to 40µA.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Utilizes Quiet Series technology to reduce simultaneous switching noise and improve dynamic threshold performance
• Features GTO output control and undershoot correction for superior signal integrity
• Includes split ground bus architecture to enhance latch-up immunity
• Provides guaranteed pin-to-pin skew AC performance

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 suffix 'SJ' corresponds to the 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide. Confirm that the component is sourced from Fairchild Semiconductor or authorized distributors, as the datasheet indicates historical production by Fairchild. Ensure compliance with RoHS requirements if applicable to the specific manufacturing lot.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring octal buffering with low noise characteristics. The ACTQ series offers faster propagation delays compared to standard ACT devices. Ensure the design accommodates the 4.5V to 5.5V supply voltage range and utilizes the SOP-20 package constraints for PCB layout.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the FACT Quiet Series family of logic ICs. It is functionally related to the 74ACQ240 but optimized for 5V operation. The 'SJ' suffix specifically denotes the physical package type, distinguishing it from SOIC or QSOP variants within the same logical family.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Check for 74ACTQ240SC (SOIC) or 74ACTQ240QSC (QSOP) if package compatibility allows. Verify pinout alignment before substitution.