SN74ACT8997NT

Microprocessors Overview

The SN74ACT8997NT is a scan-path linker manufactured by Texas Instruments, designed for IEEE 1149.1 (JTAG) compliant systems. It features four-bit identification buses and supports scan-controlled TAP concatenators. The device operates within a voltage range of 4.5 V to 5.5 V and functions reliably across an industrial temperature range from -40°C to +85°C. Packaged in a 28-pin PDIP format, it facilitates efficient test access port management in complex digital circuits.

Microprocessors Feature Summary

• Supports scan-controlled TAP concatenators for streamlined test access
• Integrates four-bit identification buses for device recognition
• Compatible with IEEE 1149.1 standard interfaces

Microprocessors Applications

• Test Access Port (TAP) controller integration
• Boundary-scan architecture implementation
• Digital circuit verification and testing

Microprocessors Procurement Notes

Verify the specific suffix 'N' confirms the PDIP-28 through-hole package variant. Confirm RoHS status as documentation indicates non-compliance for this specific part number. Ensure the application environment remains within the specified 4.5V to 5.5V supply range and -40°C to +85°C temperature limits for reliable operation.

Microprocessors Selection Notes

Select this component when designing systems requiring standardized JTAG interface expansion or boundary-scan control. It is suitable for applications needing dedicated scan-path linking capabilities rather than general-purpose logic. Consider the PDIP-28 package constraints for PCB layout and thermal management requirements during the design phase.

Microprocessors Part Context

This component belongs to the SN74ACT series of logic devices, which are optimized for high-speed CMOS operations at 5V logic levels. The ACT series bridges the performance gap between older AC and newer LVC families, offering robust drive capabilities suitable for driving multiple loads in standard digital logic environments.

Microprocessors Replacement Considerations

Check for SN74ACT8997 equivalents from other manufacturers that support identical IEEE 1149.1 scan-path functionality. Verify pin compatibility and electrical specifications before substitution.