74ACTQ245MSAX

Buffers, Drivers, Receivers, Transceivers Overview

The onsemi 74ACTQ245MSAX is an octal bidirectional transceiver utilizing FACT Quiet Series/G165 technology. It features eight non-inverting buffers with 3-STATE outputs, designed for bus-oriented applications. The device operates within a supply voltage range of 4.5V to 5.5V and supports a maximum quiescent supply current of 40µA. Outputs provide a source/sink capability of 24mA. Propagation delay is typically 5.5ns at 5.0V with a 50pF load. The component is housed in a 20-Lead Shrink Small Outline Package (SSOP).

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Utilizes FACT Quiet Series/G165 technology to ensure quiet output switching and improved dynamic threshold performance.
• Features GTO output control and undershoot correction for superior noise immunity.
• Includes split ground bus architecture to minimize simultaneous switching noise.
• Provides guaranteed pin-to-pin skew AC performance.

Buffers, Drivers, Receivers, Transceivers Applications

• Bus-oriented data transmission systems
• Memory address register buffering
• Bidirectional data path routing

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering code against manufacturer documentation to confirm package type and suffix requirements. Ensure compatibility with existing board layouts regarding the 20-Lead SSOP footprint. Confirm that system power supplies remain within the specified 4.5V to 5.5V operating range to maintain electrical characteristics. Check for any lead-free or environmental compliance markings if required by local regulations.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when high-speed bidirectional data transfer is required with low noise emissions. The ACTQ series offers faster propagation delays compared to standard ACT devices. Consider the SSOP package dimensions for space-constrained designs. Verify input voltage thresholds match the driving logic levels, as the ACTQ series requires TTL-compatible inputs.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the 74ACQ/ACTQ family of octal bidirectional transceivers manufactured by Fairchild Semiconductor, now part of onsemi. The Q-series variants specifically incorporate noise reduction technologies not found in standard 74ACT245 parts. The MSAX designation indicates the Shrink Small Outline Package variant with tape and reel availability options.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Standard 74ACT245 devices may be functionally similar but lack the specific noise reduction features of the Q-series. Verify pinout compatibility before substitution. Other packages such as SOIC or TSSOP from the same family offer identical electrical performance but require different footprints.