74ACQ245SJ

Buffers, Drivers, Receivers, Transceivers Overview

The Fairchild Semiconductor 74ACQ245SJ is an octal bidirectional transceiver featuring three-state inputs and outputs. It operates within a supply voltage range of 2V to 6V and supports an operating temperature range of -40°C to 85°C (TA). The component utilizes a 20-SOIC package with a width of 5.30mm, designated as lead-free and EIAJ Type 2. This device belongs to the Quiet Series logic family, designed for non-inverted data transmission applications.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal bidirectional data transfer capability with three-state control
• Quiet Series design for reduced signal noise
• Surface-mount installation in a 20-pin SOIC package

Buffers, Drivers, Receivers, Transceivers Applications

• Bus driver circuits requiring bidirectional data flow
• Memory interface buffering
• General-purpose digital logic transceivers

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify part status carefully as this component is listed as obsolete and not in production by Fairchild Semiconductor. Confirm that the 20-SOIC package dimensions match your PCB footprint requirements. Ensure compatibility with existing system voltages between 2V and 6V before integration into new designs.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component only if legacy support for the 74ACQ series is required. Consider the 20-SOIC package constraints and the specific voltage range needs. Evaluate alternative active components from ON Semiconductor or other manufacturers if current production availability is critical for long-term supply chain stability.

Buffers, Drivers, Receivers, Transceivers Part Context

This device is part of the broader 74AC/ACT245 family of octal bus transceivers. It shares functional similarities with parts like the 74ACT245 but differs in speed and power characteristics typical of the AC series. The 'Q' suffix indicates the Quiet Series variant, optimized for lower electromagnetic interference compared to standard AC logic families.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct substitutes include MC74AC245 from ON Semiconductor. Other compatible options may include STMicroelectronics 74ACT245 or NXP 74F545, though electrical specifications and pinouts should be verified against original datasheets.