8T49N287-998NLGI#

Overview

The Renesas 8T49N287-998NLGI is a Universal Frequency Translator belonging to the FemtoClock series. It functions as a clock generator and synthesizer designed for high-performance timing applications. The device supports GR.1244 Stratum standards, making it suitable for telecommunications infrastructure requiring precise frequency translation and jitter attenuation. This specific part number indicates a configuration optimized for universal frequency translation capabilities within the FemtoClock NG family.

Feature Summary

• Universal Frequency Translator (UFT) architecture compliant with GR.1244 Stratum standards
• FemtoClock NG technology for low phase jitter performance
• Supports multiple input and output clock formats including LVPECL, LVDS, and HCSL
• Programmable via I2C interface for flexible frequency configuration

Applications

• Telecommunications network synchronization equipment
• SONET/SDH line cards
• Carrier Ethernet switches
• Test and measurement instruments

Procurement Notes

This component is listed as End-of-Life (EOL). Distribution channels indicate limited or no availability in certain regions. Verification of current stock status and alternative sourcing strategies is required before procurement planning. Check for Product Change Notifications regarding final assembly sites or marking changes.

Selection Notes

Select this part when GR.1244 Stratum compliance is mandatory for the application. Ensure the required input/output voltage levels and frequencies match the factory pre-programmed settings associated with the -998 suffix. Verify that the system can accommodate the EOL status by confirming long-term supply agreements or qualifying a replacement from the same FemtoClock family.

Part Context

The 8T49N287 is part of the broader 8T49N28x family of Universal Frequency Translators. It shares architectural similarities with models like the 8T49N286A and 8T49N285A but differs in specific factory programming and feature sets tailored for different stratum levels or output configurations. It sits alongside active parts like the 8T49N242 in the FemtoClock portfolio.

Replacement Considerations

Potential substitutes within the FemtoClock NG family include the 8T49N286A-998NLGI8 or 8T49N285A-998NLGI8. These alternatives offer similar UFT capabilities and GR.1244 compliance. Engineers must verify register compatibility and pin-to-pin equivalence before substitution.