8T49N285A-998NLGI

Overview

The Renesas 8T49N285A-998NLGI is a FemtoClock NG Universal Frequency Translator (UFT) designed as a clock synthesizer and jitter cleaner. It complies with ITU-T GR.1244 Stratum standards for ultra-low frequency jitter performance. The device supports multiple input and output formats, including LVDS, LVPECL, HCSL, and LVCMOS. It operates within a supply voltage range of 2.375V to 3.465V and functions across an industrial temperature range of -40°C to 85°C. The component integrates an on-chip EEPROM for configuration storage.

Feature Summary

• Complies with ITU-T GR.1244 Stratum standard specifications
• Supports differential and single-ended I/O formats including LVDS, LVPECL, HCSL, and LVCMOS
• Integrated non-volatile EEPROM for configuration retention
• Operates at frequencies up to 1 GHz

Applications

• Telecommunications infrastructure requiring Stratum timing
• High-performance networking equipment
• Data center synchronization systems

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm package type and shipping quantity. The '8' suffix typically indicates tape-and-reel packaging, while other suffixes may denote tray packaging. Confirm moisture sensitivity level (MSL) ratings and lead-free compliance status prior to procurement to ensure compatibility with assembly processes.

Selection Notes

Select this model when strict adherence to ITU-T GR.1244 Stratum jitter masks is required. Ensure the design accommodates the 2.375V to 3.465V supply voltage range. Verify that the available I/O configurations match the system requirements for input sources and output loads. Consider the thermal dissipation characteristics of the VFQFPN package during PCB layout.

Part Context

This part belongs to the Renesas FemtoClock NG family of universal frequency translators. These devices are engineered to provide flexible clock generation and distribution solutions with superior phase noise performance compared to standard PLL synthesizers.

Replacement Considerations

Consult the official Renesas cross-reference guide for verified substitutes. Generic replacements may not meet the specific GR.1244 Stratum jitter requirements or pinout compatibility.