RC19008A100GND#BB0

Overview

The RC19008A100GND#BB0 is an eight-output PCIe Gen7 clock buffer from Renesas Electronics. It features one differential input and eight LP-HCSL outputs, supporting frequencies from 1 MHz to 400 MHz. The device operates on a 3.3 V supply (2.97 V to 3.63 V) within an industrial temperature range of -40°C to 105°C. It accepts LVDS or HCSL inputs and provides selectable 100 Ω output impedance. Key electrical characteristics include typical additive jitter of 30 fs RMS and power consumption around 231 mW. The component is housed in a 5 mm × 5 mm 40-VFQFPN package with an exposed pad.

Feature Summary

• PCIe Gen 1–7 compliance with ultra-low additive jitter (typ. 30 fs RMS)
• Eight LP-HCSL outputs with selectable 85 Ω or 100 Ω output impedance
• Supports both source-terminated and double-terminated loads
• Flexible startup sequencing (FSS), automatic clock parking (ACP), and power down tolerance

Applications

• AMD Fourth Generation EPYC (Genoa) power and timing systems
• PCIe Gen 5/6 infrastructure designs requiring backward compatibility
• High-speed server and communication baseboard clock distribution

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm pinout, impedance selection, and packaging details. Ensure the procurement channel provides traceability for the 40-VFQFPN package. Confirm that the supplied units match the specified 3.3 V supply voltage and industrial temperature range requirements for the target application environment.

Selection Notes

Select this component when designing for PCIe Gen 7 standards while maintaining backward compatibility with earlier generations. Choose the 100 Ω variant if the design requires double-terminated loads or specific impedance matching for LP-HCSL signaling. Consider the flexible startup sequencing and automatic clock parking features if robust system initialization and signal loss indication are required for the clock tree architecture.

Part Context

This part belongs to the RC190xxA family of high-performance clock buffers designed for demanding data center and server applications. The RC19008 specifically addresses the jitter and skew requirements of next-generation PCIe interfaces. It serves as a critical timing element in complex multi-lane serial link architectures, ensuring signal integrity across high-frequency data paths.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pin-to-pin compatibility and electrical specifications before considering any alternative components from other manufacturers.