89H48H12G2ZDBL8

Overview

The 89H48H12G2ZDBL8 is a specialized PCI Express switch integrated circuit manufactured by Renesas Electronics Corporation. It provides 48 PCIe Gen2 lanes and 12 switch ports, utilizing a non-blocking architecture optimized for high-performance system interconnects. The device supports partitionable switch architecture for true multi-root support and features internal buffering with flow control credits to maximize bandwidth and handle large payloads. Designed for low latency and power consumption, it ensures full line-rate throughput for multiple traffic flows regardless of switch loading. The component is housed in a 676-FCBGA package (27x27 mm) and operates on a 3.3V supply voltage.

Feature Summary

• Non-blocking switch architecture providing deterministic system interconnect switching
• Partitionable switch architecture enabling true multi-root support
• Internal buffering and flow control credits optimized for maximum bandwidth

Applications

• High-performance system interconnect switching
• Multi-root server architectures
• Storage area networks requiring deterministic latency

Procurement Notes

Verify the specific suffix BL8 against official Renesas documentation to confirm pinout and electrical characteristics, as suffixes often denote package or temperature variations. Confirm current availability status, as this series may be subject to end-of-life notices. Ensure compatibility with existing root complex designs before procurement.

Selection Notes

Select this component when 48 PCIe Gen2 lanes and 12 independent ports are required for scalable system expansion. Consider the FCBGA package constraints and thermal management requirements associated with high-density switching. Evaluate if the partitionable architecture meets specific multi-root isolation needs compared to simpler bridge solutions.

Part Context

This part belongs to the PES48H12G2 family of PCI Express switches from Renesas (formerly IDT). It is designed to complement other components in high-end computing systems, such as those using RH850 automotive microcontrollers or general-purpose processors requiring extensive peripheral connectivity. The family focuses on low-latency data transfer for demanding industrial and server applications.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult Renesas technical support for direct replacements or obsolescence management options.