RC19008AGND#KBH

Overview

The RC19008AGND#KBH is an 8-output PCIe Gen7 clock buffer from Renesas Electronics. It features LP-HCSL outputs and supports frequencies from 1 MHz to 400 MHz. The device operates on a single 3.3V supply with typical power consumption of 231 mW or 237 mW depending on configuration. It provides ultra-low additive jitter (typical RMS 30 fs) and reduced in-to-out delay. Key features include selectable output slew rate, support for 85Ω and 100Ω output impedance, open-drain LOS indication, and flexible startup sequencing. It is housed in a 5mm × 5mm 40-VFQFPN package.

Feature Summary

• PCIe Gen 1–7 compliance with backward compatibility
• Ultra-low additive phase jitter (typical 30 fs RMS)
• Selectable output slew rate via pin
• Supports both 85Ω and 100Ω output impedance versions

Applications

• AMD Fourth Generation EPYC (Genoa) power and timing systems
• Cloud and high-performance computing infrastructure
• NVMe storage controllers

Procurement Notes

Verify the specific ordering suffix KBH against official Renesas documentation to confirm package variant and tape/reel specifications. Ensure the component meets the required operating temperature range of -40°C to +105°C for your application environment. Cross-reference the datasheet for any recent design changes or lifecycle status updates prior to final procurement.

Selection Notes

Select this component when designing for PCIe Gen7 requirements requiring low jitter and flexible output termination. Compare the 85Ω vs 100Ω impedance options against your load requirements. Consider the 40-VFQFPN package dimensions for PCB layout constraints. Verify that the 3.3V supply voltage aligns with your system's power architecture.

Part Context

The RC19008A belongs to the RC190xxA series of PCIe clock buffers. It is designed to replace older generation clock generators in high-speed serial link applications. The device integrates multiple features such as Automatic Clock Parking (ACP) and Power Down Tolerance (PDT) to enhance system robustness during state transitions.

Replacement Considerations

Direct replacements within the same family include other variants of the RC19008A with different output impedance or packaging options. Ensure substitute parts maintain the same LP-HCSL output signaling and 3.3V supply requirement. Verify pinout compatibility if swapping between different package types.