SN74ABT646ANSR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74ABT646ANSR is an octal bus transceiver and register featuring three-state outputs, manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V and supports data rates up to 200 MHz. The device utilizes Advanced BiCMOS technology to achieve low power consumption while maintaining high-speed performance. It is housed in a 20-pin Small Outline package (SOIC) with a width of 0.209 inches (5.30 mm). The component is designed for surface-mount installation and functions reliably across an operating temperature range from -40°C to +85°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Integrates octal bus transceiver functionality with register capabilities for efficient data handling
• Features three-state outputs to facilitate direct connection to system buses without additional drivers
• Employs Advanced BiCMOS technology to ensure high-speed operation alongside low static power dissipation

Buffers, Drivers, Receivers, Transceivers Applications

• High-performance memory mapping systems requiring fast data transfer
• Clock drivers for synchronous digital circuits
• Bus-oriented architectures in industrial control applications

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix against official Texas Instruments documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with existing PCB footprints for the SOIC-20 configuration. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and current production status before finalizing procurement decisions.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems that require simultaneous bus driving and latching functions within a single integrated circuit. Consider its 200 MHz capability for high-frequency data paths. Evaluate the 4.5 V to 5.5 V supply requirement against available power rails. Confirm that the SOIC-20 package dimensions fit the mechanical constraints of the target assembly.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the SN74ABT series of logic integrated circuits, which are characterized by their advanced BiCMOS construction. The series provides a balance between speed and power efficiency, making it suitable for demanding digital applications. The SN74ABT646ANSR specifically addresses needs for octal data management with registered output storage.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Official substitutes include SN74ABT646ANSRE4 and SN74ABT646ANSRG4. These variants maintain identical electrical and functional specifications while differing only in environmental compliance or manufacturing lot codes as defined by the manufacturer.