89HPES48T12BL

Specialized Overview

The 89HPES48T12BL is a PCI Express switch interface integrated circuit manufactured by Renesas Electronics Corporation. It belongs to the PRECISE family of high-performance system interconnect switches. The device provides 48 PCIe Gen2 lanes and supports 12 switch ports, offering non-blocking throughput for multiple traffic flows. It features a partitionable architecture designed for true multi-root support and includes internal buffering with flow control credits optimized for maximum bandwidth and large payloads. The component is housed in an FCBGA package and operates at a supply voltage of 3.3V. It is classified as obsolete status.

Specialized Feature Summary

• Provides deterministic system interconnect switching with full line rate non-blocking throughput across all ports regardless of switch loading conditions.
• Supports partitionable switch architecture enabling true multi-root functionality for complex system configurations.
• Integrates internal buffering and flow control credits optimized for handling large payloads and maximizing bandwidth efficiency.

Specialized Applications

• High performance system interconnect switching
• Multi-root server architectures
• Storage area network (SAN) connectivity

Specialized Procurement Notes

This component is listed as obsolete or discontinued by the manufacturer. Availability is restricted, and sourcing may require checking secondary market distributors or existing stock. Verification of part authenticity and condition is critical due to the end-of-life status. Ensure compatibility with existing design requirements before procurement attempts.

Specialized Selection Notes

Select this component only if legacy support for 48-lane PCIe Gen2 switching is required. Verify that the FCBGA-676 package fits the board layout constraints. Consider the obsolete status when planning long-term production lifecycles. Evaluate alternative newer generation switches if future scalability is a priority.

Specialized Part Context

The 89HPES48T12BL is part of the 89HPES48T12 series from Renesas, formerly IDT. This series focuses on high-density PCIe switching solutions. The specific suffix BL indicates the package type and temperature grade within the broader product family. It serves as a bridge between host processors and peripheral devices in high-throughput environments.

Specialized Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Due to the obsolete status, direct pin-to-pin replacements may not exist. Designers should consult Renesas technical resources for recommended upgrades or compatible next-generation PCIe switch families.