89HPES32H8ALI

Overview

The 89HPES32H8ALI is a 32-lane, 8-port PCIe System Interconnect Switch designed for high-performance system interconnect partitioning. It features a non-blocking switch architecture optimized for multi-root support and internal buffering with flow control credits to maximize bandwidth and handle large payloads. The device supports low latency and low power operation. This specific part number variant utilizes an FCBGA package with 900 leads and operates within the industrial temperature grade.

Feature Summary

• Provides 32 PCIe Gen1 lanes and 8 ports of deterministic system interconnect switching
• Supports true multi-root configurations through a partitionable switch architecture
• Optimized internal buffering and flow control credits for maximum bandwidth efficiency

Applications

• High-performance system interconnect partitioning
• Multi-root server architectures
• I/O expansion systems requiring low latency

Procurement Notes

This component is classified as obsolete. Verification of availability requires checking authorized distributors for remaining stock or surplus channels. Confirm the exact suffix ZAALI matches the required industrial temperature grade and lead-free status before procurement. Ensure compatibility with existing PCB footprints and design-in documentation.

Selection Notes

Select this model when designing systems requiring 32 PCIe Gen1 lanes with eight independent ports. Verify that the application benefits from partitionable architecture for multi-root support. Compare against newer generations if performance scaling is required, as this represents a Gen1 solution. Ensure thermal management aligns with the FCBGA 900-lead package constraints.

Part Context

The 89HPES32H8ALI belongs to the IDT (now Renesas) 89PES32H8 family of PCIe switches. It serves as a system interconnect solution distinct from I/O expansion variants like the 89HPES32T8. The family provides non-blocking throughput for multiple traffic flows regardless of switch loading, targeting enterprise and high-end computing environments.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. As the product is obsolete, engineers must evaluate newer PCIe switch families from Renesas or other vendors for long-term supply stability.