8T49N008A-055NLGI8

Overview

The 8T49N008A-055NLGI8 is a programmable clock generator from the FemtoClock NG series manufactured by Renesas Electronics. It features one input and eight outputs with a maximum frequency of 300MHz. The device supports LVPECL and LVDS output types and operates on a 2.375V to 3.465V supply voltage. It is housed in a 32-VFQFN exposed pad package and functions within an ambient temperature range of -40°C to 85°C.

Feature Summary

• Eight selectable LVPECL or LVDS outputs
• Fourth-generation FemtoClock NG PLL technology
• Supports HCSL, LVDS, and LVPECL differential inputs
• I2C programming interface for register configuration

Applications

• PCI Express Gen2 (5Gb/s) jitter compliant systems
• PCI Express Gen3 (8Gb/s) jitter compliant systems
• Networking and communication equipment requiring low phase jitter

Procurement Notes

This component is listed as discontinued by the manufacturer. Verification of end-of-life status and final shipment dates is required before procurement planning. Alternative sources may only offer limited remaining stock or obsolete inventory.

Selection Notes

Select this part for applications requiring multiple differential outputs from a single reference. Ensure the design accommodates the 32-VFQFN package thermal requirements. Verify that the specific factory preprogrammed configuration matches the target frequencies, as custom codes require direct contact with Renesas.

Part Context

This model belongs to the IDT8T49N008I family of clock generators. It utilizes FemtoClock NG technology to provide low RMS phase jitter performance. The device integrates an internal crystal oscillator option and supports bank-selectable output configurations for flexible system integration.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the discontinued status, engineering evaluation of alternative clock generators from the same or competing families is necessary.