8T49N4811NLGI8

Overview

The 8T49N4811NLGI8 is a FemtoClock NG pin-programmable clock generator designed for networking and communications applications. It supports I2C programmability and integrates an on-chip EEPROM for configuration storage. The device functions as a highly flexible clock solution, capable of generating multiple output frequencies from a single input source. It utilizes advanced PLL technology to synthesize precise clock signals required for high-speed digital interfaces in complex system architectures.

Feature Summary

• Pin-programmable architecture allows for hardware-based configuration flexibility without external programming tools during initial setup.
• Integrated I2C interface enables dynamic reprogramming and control via serial communication protocols.
• On-chip EEPROM provides non-volatile storage for clock configurations, ensuring retention of settings across power cycles.

Applications

• Networking equipment clock distribution
• Telecommunications infrastructure timing
• High-speed data acquisition systems

Procurement Notes

Verify the specific suffix 'NLGI8' against the manufacturer's current ordering guide to ensure package and temperature range compatibility. Confirm that the pin-programmable variant meets the design requirements, as other variants may require different configuration methods. Check for any recent product change notices regarding lead times or assembly site changes before finalizing procurement plans.

Selection Notes

Select this component when a pin-programmable clock generator with integrated memory is required for networking applications. Ensure the design can accommodate the specific pin configuration for programming. Compare against other FemtoClock NG series devices if higher frequency ranges or different output counts are needed. Verify that the I2C address and voltage levels match the system controller capabilities.

Part Context

This part belongs to the FemtoClock NG family of clock generators from Renesas Electronics. The family is characterized by low jitter performance and flexible programmability options. The 8T49N4811 specifically targets Ethernet and communication standards requiring precise timing synthesis. It represents a specialized solution within the broader portfolio of timing and synchronization products offered by the manufacturer.

Replacement Considerations

The product status is listed as obsolete. Designers should consult the official replacement guide for direct substitutes within the FemtoClock NG series. Alternative parts may offer updated packaging or enhanced features while maintaining pin-to-pin compatibility where applicable.