8T49N241-005NLGI8

Overview

The Renesas 8T49N241-005NLGI8 is a FemtoClock NG Universal Frequency Translator designed for high-performance clock generation and jitter attenuation. It features an Ultra-Femto (UFT) architecture capable of supporting up to four independent fractional PLLs, enabling flexible frequency synthesis with low phase noise. The device integrates an on-chip EEPROM for configuration storage and supports multiple output interface types, including LVPECL, LVDS, and HSTL, to accommodate diverse system requirements. It operates within a standard industrial temperature range and utilizes a compact VFQFPN package.

Feature Summary

• Ultra-Femto Clock Architecture: Supports up to four independent fractional PLLs for precise frequency synthesis.
• Integrated Configuration Memory: Includes on-chip EEPROM to store device settings without external components.
• Flexible Output Interfaces: Provides configurable outputs supporting LVPECL, LVDS, and HSTL standards.
• Hitless Switching: Enables automatic or manual input clock selection with hitless switching capabilities.

Applications

• High-speed data communication systems requiring low-jitter clock distribution.
• Telecommunications infrastructure equipment.
• Enterprise networking switches and routers.
• Servers and storage arrays needing precise timing synchronization.

Procurement Notes

Verify the specific suffix '005' against the official Renesas datasheet to confirm the exact output frequencies and pinout configuration, as suffixes define functional variants. Confirm RoHS3 compliance status and check for any Product Change Notifications (PCNs) related to assembly sites or material changes before procurement.

Selection Notes

Select this component when ultra-low jitter performance is critical for multi-standard clock generation. Ensure the required number of independent PLLs matches the design needs, as this model supports up to four. Verify that the available output drive strengths and voltage levels are compatible with the downstream receiver inputs in the target application.

Part Context

This part belongs to the FemtoClock NG family, which succeeded earlier generations like the 8T49N240 series. It represents an evolution in universal frequency translators, offering enhanced flexibility through multiple fractional PLLs compared to single-PLL predecessors. The device is manufactured by Renesas Electronics Corporation following their acquisition of Integrated Device Technology (IDT).

Replacement Considerations

Direct replacements may include other models from the 8T49N24x series, such as the 8T49N241-998NLGI8 or 8T49N242 series, depending on the specific frequency requirements and output count needed. Cross-reference the pinout and electrical specifications carefully, as different suffixes within the same base model may have distinct functional configurations.