8T49N004A-060NLGI

Overview

The 8T49N004A-060NLGI is a programmable clock generator from the FemtoClock NG series by Renesas Electronics. It operates with a single input and provides four differential LVPECL outputs, configured as a 1:4 ratio device. The maximum output frequency reaches 245.76 MHz. Power supply voltage ranges from 2.375 V to 3.465 V. The component is housed in a 32-VFQFN package with an exposed pad, measuring 5x5 mm. It supports crystal inputs and includes a PLL with bypass functionality. Operating temperature spans from -40°C to 85°C.

Feature Summary

• Single-input, four-output LVPECL clock generation
• Maximum frequency of 245.76 MHz
• 32-VFQFN (5x5 mm) surface-mount package
• PLL with bypass capability

Applications

• High-speed data communication systems
• Networking equipment requiring low-jitter clocks
• Server and storage backplane interfaces

Procurement Notes

Verify current availability status as this part number may be subject to discontinuation or lifecycle changes. Confirm RoHS compliance and moisture sensitivity level (MSL 3) prior to procurement. Check for official product change notices regarding assembly site or labeling updates.

Selection Notes

Select this model when LVPECL outputs are required for high-speed serial links. Ensure the design accommodates the 2.375V to 3.465V supply range. Verify that the 32-VFQFN footprint matches the PCB layout constraints. Consider thermal dissipation requirements due to the exposed pad design.

Part Context

This component belongs to the IDT/Renesas FemtoClock NG family, known for ultra-low jitter performance. It is functionally similar to other 8T49N004 variants but distinguished by specific output configurations and packaging suffixes. The 'NLGI' suffix typically denotes lead-free, green molding compound, and tape-and-reel packaging.

Replacement Considerations

Consult official Renesas substitution guides for direct replacements. Cross-reference with other 8T49N004A variants if pin compatibility is critical. Verify electrical parameters against legacy components before integration.