SN74LVT8996DW

Specialty Logic Overview

The SN74LVT8996DW is a 3.3V, 10-bit Addressable Scan Port (ASP) multi-add tap transceiver from Texas Instruments' SCOPE family. Designed for IEEE Std 1149.1 (JTAG) boundary scan applications, it enables complex circuit testing by extending scan access beyond board-level boundaries. The device operates within a voltage range of 2.7V to 3.6V and supports an operating temperature range of -40°C to +85°C. It features high-drive outputs capable of sourcing -32mA and sinking 64mA, ensuring robust signal integrity for backplane interfaces and high fan-out scenarios.

Specialty Logic Feature Summary

• Supports IEEE Std 1149.1-1990 JTAG test access port protocols with multi-branch routing capabilities
• Provides 10-bit address space allowing up to 1021 user-specified board addresses plus three global addresses
• Features 5V-tolerant inputs and outputs when powered at 3.3V, enabling compatibility with legacy 5V systems
• Includes dedicated disconnect, reset, and test synchronization addresses for flexible system control

Specialty Logic Applications

• Complex printed circuit board assembly testing via boundary scan architecture
• Interconnecting module-level TAP controllers in hierarchical test structures
• Backplane interface applications requiring high drive strength and voltage translation
• System-level integration where multiple JTAG chains require selective isolation or connection

Specialty Logic Procurement Notes

Verify the specific suffix 'DW' corresponds to the SOIC-24 package variant during procurement. Confirm RoHS compliance status through official manufacturer documentation as requirements may vary by production batch. Ensure the design accommodates the specified 2.7V to 3.6V supply range and thermal characteristics for the intended operating environment.

Specialty Logic Selection Notes

Select this component when designing systems that require scalable JTAG infrastructure with addressable branching. It is suitable for replacing older ASP devices if pinout and electrical specifications align. Consider the 3.3V operation and 5V tolerance when interfacing with mixed-voltage logic families. Evaluate the need for 10-bit addressing capacity against simpler bus architectures.

Specialty Logic Part Context

This device belongs to the SN74LVT8996 series within Texas Instruments' SCOPE (Scalable Component Programmability for Embedded Systems) portfolio. These components are specialized logic ICs designed specifically for enhancing testability in digital systems. The DW suffix indicates a plastic small-outline integrated circuit package, distinguishing it from other form factors like PW (TSSOP) available in the same series.

Specialty Logic Replacement Considerations

The SN74LVT8996PW serves as a direct functional alternative offering identical electrical characteristics in a TSSOP-24 package. Verify pin-to-pin compatibility and package dimensions before substitution. No other cross-series replacements are confirmed in public documentation.