SN74ABT8646DWR

Specialty Logic Overview

The SN74ABT8646DWR is a scan test device manufactured by Texas Instruments, featuring an octal bus transceiver and registers. It operates within a supply voltage range of 4.5 V to 5.5 V and supports an operating temperature range from -40°C to +85°C. The component is housed in a 28-SOIC package with a width of 7.50 mm (0.295 inches). It utilizes BiCMOS technology and is part of the 74ABT series. The device is RoHS3 compliant and classified under ECCN EAR99.

Specialty Logic Feature Summary

• Integrates scan test functionality with an octal bus transceiver and registers for comprehensive testing capabilities.
• Utilizes BiCMOS technology to ensure high-speed performance and low power consumption.
• Features three-state outputs to facilitate efficient data transfer and isolation in complex circuit designs.

Specialty Logic Applications

• Scan chain testing in digital logic verification
• Bus interface applications requiring bidirectional data transfer
• System-level testing environments

Specialty Logic Procurement Notes

Verify the specific suffix DWR indicates tape and reel packaging when sourcing. Confirm the component status as obsolete or active through official Texas Instruments channels prior to procurement. Ensure compatibility with 28-SOIC footprints during PCB layout. Check for RoHS3 compliance requirements against project specifications. Validate that the 4.5V to 5.5V supply range aligns with system power rails.

Specialty Logic Selection Notes

Select this component for applications requiring integrated scan test structures alongside standard bus transceiver functions. The 28-SOIC package offers surface-mount convenience for automated assembly. Consider the ABT series characteristics for speed and drive strength requirements. Verify thermal management needs within the specified -40°C to +85°C operating range. Ensure design compatibility with three-state output control signals.

Specialty Logic Part Context

This device belongs to the Texas Instruments 74ABT series of specialty function logic ICs. The SN74ABT8646 specifically combines bus transceiver and register functionalities with scan test features. It is designed for high-performance digital systems requiring efficient data handling and testing integration. The SOIC-28 package provides a compact solution for space-constrained designs.

Specialty Logic Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult Texas Instruments directly for current alternatives or obsolescence management options.