8T49N004A-999NLGI8

Overview

The 8T49N004A-999NLGI8 is a FemtoClock NG clock generator manufactured by Renesas Electronics. It features one circuit with a maximum frequency of 300MHz and a 1:4 input-to-output ratio. The device accepts HCSL, LVDS, or LVPECL differential inputs and provides four LVPECL differential outputs. It operates on a supply voltage of 2.375V to 3.465V within an ambient temperature range of -40°C to 85°C. The component is housed in a 32-VFQFN package with an exposed pad.

Feature Summary

• Supports HCSL, LVDS, and LVPECL differential input levels
• Generates four LVPECL differential output channels
• Maximum operating frequency of 300MHz
• Integrated PLL with bypass capability

Applications

• High-speed serial communication interfaces
• Data center infrastructure timing
• Telecommunications equipment synchronization

Procurement Notes

This specific part number is listed as obsolete by the manufacturer. Verification of availability should focus on remaining stock from authorized distributors or secondary market suppliers. Ensure that any sourced units are RoHS3 compliant and match the original packaging specifications to maintain quality standards for critical timing applications.

Selection Notes

Designers requiring this functionality must evaluate alternative components from the FemtoClock NG family or newer generations due to the obsolescence of the 8T49N004A series. Verify that replacement devices support the required 300MHz frequency, LVPECL output configuration, and 32-VFQFN footprint to ensure mechanical and electrical compatibility without redesigning the PCB layout.

Part Context

The 8T49N004A belongs to the FemtoClock NG series, designed for low-jitter clock generation. This series utilizes advanced PLL technology to provide precise frequency synthesis from various input references. The 8T49N004A variant specifically targets applications requiring multiple synchronized LVPECL outputs derived from a single reference source.

Replacement Considerations

As the 8T49N004A-999NLGI8 is obsolete, consult the official Renesas FemtoClock NG ordering guide for current equivalents. Potential replacements include updated models within the 8T49N004A family or newer series such as the 8T49N241, provided they meet the specific frequency, output type, and package requirements.