74ACT240SJX

Buffers, Drivers, Receivers, Transceivers Overview

The Fairchild Semiconductor 74ACT240SJX is an octal buffer and line driver featuring inverting 3-STATE outputs. Designed for bus-oriented applications, it provides improved printed circuit board density. The device operates within a supply voltage range of 4.5 V to 5.5 V. It features TTL-compatible inputs and outputs capable of sourcing or sinking 24 mA. The propagation delay is specified at 8.5 ns at 5 V. The component utilizes a SOP-20 surface-mount package and supports operation temperatures from -40 °C to +85 °C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal buffer and line driver with inverting 3-STATE outputs
• TTL-compatible inputs for versatile logic interfacing
• High drive capability with 24 mA output current sourcing and sinking
• Designed for memory address driving and clock distribution

Buffers, Drivers, Receivers, Transceivers Applications

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

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific manufacturer origin as this part number may be associated with onsemi following industry consolidation. Confirm RoHS compliance status and lead-free markings against the latest datasheet revision. Ensure the SOP-20 package dimensions match the design footprint requirements before finalizing procurement plans.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when an octal inverting buffer with high drive strength is required for bus systems. The ACT series offers faster switching speeds compared to standard LS logic while maintaining TTL input compatibility. Consider the 3-STATE feature for efficient bus sharing in complex digital designs requiring multiple data sources.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the 74ACT logic family, which combines the speed of AC logic with the input compatibility of TTL standards. The 74ACT240 variant specifically provides eight independent buffers with inverted outputs. It is commonly used in high-density digital systems where signal integrity and bus management are critical for performance.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Check for equivalents such as the MM74ACT240 or STMicroelectronics 74ACT240 variants. Verify pinout compatibility and electrical specifications before substitution. Note that some manufacturers may use different suffix codes for identical functional parts.