74ABT646CMSAX

Buffers, Drivers, Receivers, Transceivers Overview

The Fairchild Semiconductor 74ABT646CMSAX is an octal bus transceiver and register featuring 3-state outputs. It belongs to the ABT logic series, utilizing BiCMOS technology for high-speed performance. The device operates within a supply voltage range of 4.5 V to 5.5 V. It provides non-inverting data transmission with direction control. The component is housed in a 24-pin SSOP package. Key electrical characteristics include a propagation delay of 5.6 ns, a low-level output current of 64 mA, and a high-level output current of -32 mA. It supports TTL input and output levels.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal registered bus transceiver with 3-state outputs
• Non-inverting data transmission capability
• Direction control for bidirectional data flow

Buffers, Drivers, Receivers, Transceivers Applications

• High-speed data bus systems
• Memory interface circuits
• Bidirectional data buffering

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify component authenticity through official manufacturer channels or authorized distributors. Confirm RoHS compliance status via the specific datasheet revision. Check for obsolescence notices as this part may be discontinued. Ensure the SSOP-24 package matches your PCB footprint requirements. Validate operating temperature ranges against your environmental specifications.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring octal width and registered outputs. Compare propagation delays against system timing constraints. Verify voltage compatibility with 5V logic families. Consider the SSOP-24 package size for board space limitations. Evaluate power consumption relative to other ABT series alternatives.

Buffers, Drivers, Receivers, Transceivers Part Context

This device is part of the Fairchild 74ABT series, designed for advanced high-speed digital applications. It integrates transceiver and register functions into a single package. The ABT series combines BiCMOS speed with CMOS low power consumption. It serves as a bridge between different logic families in complex digital systems.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The SN74ABT646DBR is a confirmed substitute from Texas Instruments. The 74ABT646CMTC from onsemi is another verified alternative. Both offer similar octal registered transceiver functionality.