89H64H16G3YCBL

Specialized Overview

The 89H64H16G3YCBL is a PCIe Gen3 system interconnect switch manufactured by Renesas Electronics. It provides 64 PCIe Gen3 lanes and 16 switch ports within a non-blocking architecture optimized for high-performance system interconnects. The device features a partitionable switch architecture supporting true multi-root capabilities, along with internal buffering and flow control credits designed to maximize bandwidth and accommodate large payloads. It delivers low latency and low power consumption while ensuring all ports receive full line-rate, non-blocking throughput for multiple traffic flows regardless of switch loading conditions.

Specialized Feature Summary

• Non-blocking switch architecture optimized for high-performance system interconnect applications
• Partitionable switch architecture enabling true multi-root support
• Internal buffering and flow control credits optimized for maximum bandwidth and large payloads

Specialized Applications

• High-performance computing system interconnects
• Multi-root server architectures
• Enterprise storage networking solutions

Specialized Procurement Notes

Verify the specific suffix YCBL against official Renesas documentation to confirm package type, temperature grade, and lead-free status. Confirm current availability as this component may be subject to discontinuation or limited supply constraints. Ensure compatibility with existing PCB designs regarding the FCBGA-1156 footprint and moisture sensitivity levels before procurement.

Specialized Selection Notes

Select the 89H64H16G3YCBL when designing systems requiring 64 PCIe Gen3 lanes with deterministic switching performance. Compare against the 89H64H16G2 variant if legacy Gen2 support suffices, noting the G3 offers higher data rates. Evaluate thermal management requirements for the FCBGA-1156 package and ensure the design supports the necessary voltage domains for optimal operation.

Specialized Part Context

This part belongs to the 89H64H16 series of PCIe switches from Renesas (formerly IDT). It succeeds earlier generations like the 89H64H16G2, offering upgraded Gen3 lane speeds while maintaining the same port count and architectural benefits. The series is designed for scalable, high-bandwidth interconnect needs in modern data center and enterprise infrastructure environments.

Specialized Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Designers should consult Renesas for current lifecycle status and potential obsolescence notices.