74ACQ245SCX

Buffers, Drivers, Receivers, Transceivers Overview

The onsemi 74ACQ245SCX is an octal bidirectional transceiver utilizing FACT Quiet Series technology. It features eight non-inverting buffers with 3-STATE outputs, operating within a supply voltage range of 2.0V to 6.0V. The device provides a current sinking capability of 24 mA at both A and B ports. Propagation delays are guaranteed at 10.5 ns maximum at 3.3V and 7.0 ns maximum at 5.0V. It operates across a temperature range of -40°C to +85°C in a 20-Lead SOIC package.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Utilizes FACT Quiet Series/G165 technology for quiet output switching and improved dynamic threshold performance.
• Features GTO output control and undershoot corrector for superior noise immunity.
• Includes split ground bus architecture to enhance overall circuit performance.
• Provides 3-STATE outputs capable of driving bus lines or buffering memory address registers.

Buffers, Drivers, Receivers, Transceivers Applications

• Bus-oriented applications requiring bidirectional data communication
• Memory address register buffering
• Asynchronous 2-way data bus communication

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering code suffix against the manufacturer's documentation to confirm package type and lead-free status. Ensure the component meets the required JEDEC standards for the selected package variant. Confirm that the supply voltage and temperature ranges align with the system design specifications before finalizing procurement.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for designs requiring reduced simultaneous switching noise and improved latch-up immunity compared to standard AC devices. The 24 mA drive strength supports direct interfacing with buses without additional buffering. Consider the propagation delay specifications when designing high-speed synchronous systems.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the 74ACQ/ACTQ family, which integrates Fairchild's Quiet Series technology into the standard 74AC logic architecture. It serves as a specialized version of the octal bus transceiver designed to mitigate electromagnetic interference issues common in dense digital systems while maintaining compatibility with standard bus protocols.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The datasheet lists the 74ACTQ245SC as a related device within the same family offering similar functionality with ACT input levels. Verify pin compatibility and electrical characteristics before substituting.