74ACQ245SCX

Buffers, Drivers, Receivers, Transceivers Overview

The 74ACQ245SCX is an octal bidirectional transceiver with 3-STATE inputs and outputs, manufactured by Fairchild Semiconductor (now onsemi). It utilizes silicon gate CMOS technology to provide high-speed performance. The device features non-inverting buffers designed for bus-oriented applications. Key electrical characteristics include A and B outputs capable of sourcing and sinking 24 mA. The component operates within a temperature range of -40°C to 85°C and is housed in a 20-SOIC package.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal bidirectional data path with non-inverting buffer functionality
• Quiet output series design reducing noise emissions
• 3-STATE outputs allowing multiple devices to share a bus
• High drive capability with 24 mA source/sink per output

Buffers, Drivers, Receivers, Transceivers Applications

• Bus-oriented memory and I/O systems
• Clock drivers and buffered oscillators
• Multiplexer control logic

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the manufacturer status as Fairchild Semiconductor products are now managed by onsemi. Confirm the specific suffix 'Q' indicates the Quiet Series variant if required for noise-sensitive designs. Ensure the 20-SOIC package dimensions match the PCB footprint requirements. Check for any discontinued status notices or lifecycle notifications from the current supplier before finalizing orders.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when an octal bidirectional transceiver with low noise characteristics is needed. The ACQ series offers reduced ICC and IOZ compared to standard AC variants. Ensure the system voltage levels are compatible with the 2V/6V operating range specified for this transceiver. Consider the 24 mA drive strength for load requirements on the bus lines.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74ACQ family of logic ICs, which are high-speed CMOS devices. The 74AC245 is the standard counterpart, while the 74ACQ245 variant specifically targets applications requiring quieter operation. It serves as a critical interface component in digital systems requiring reliable bidirectional data transfer across eight bits simultaneously.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The MC74AC245 is a direct functional equivalent from onsemi. Other manufacturers offer pin-compatible alternatives such as the SN74AC245 or DM74AC245. Verify that substitute parts maintain the same 20-SOIC package and 24 mA drive specifications.