89H48H12G2ZDBLGI

Overview

The 89H48H12G2ZDBLGI is a specialized interface integrated circuit manufactured by Renesas Electronics Corporation, designed as a high-performance PCI Express system interconnect switch. It provides 48 PCIe Gen2 lanes and supports 12 independent switch ports. The device utilizes a non-blocking architecture to ensure full line-rate throughput for multiple traffic flows regardless of switch loading conditions. It operates on a 3.3V supply voltage and is housed in a 676-ball FCBGA package with dimensions of 27x27 mm. The component is designated for industrial temperature grades and features internal buffering and flow control credits optimized for maximum bandwidth and large payload support.

Feature Summary

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

Applications

• High-performance system interconnect switching
• Multi-root server architectures
• Industrial computing systems requiring deterministic latency

Procurement Notes

This component is officially classified as obsolete by the manufacturer. Verification of availability should focus on secondary market distributors or surplus inventory holders rather than direct manufacturer channels. Buyers must confirm the specific revision level and packaging type (tray vs. reel) when sourcing from third-party vendors, as these variants may have distinct handling requirements. Ensure that any sourced units match the original RoHS3 compliance specifications.

Selection Notes

Designers should consider the obsolete status of this part when initiating new projects. While the 89H48H12G2 series offers robust PCIe Gen2 switching capabilities, newer generations such as PCIe Gen3 or Gen4 switches may offer improved performance and longer lifecycle support. If replacement is necessary, consult the manufacturer's product brief for recommended successors that maintain similar port counts and lane configurations while adhering to modern power and speed standards.

Part Context

The 89H48H12G2ZDBLGI belongs to the PES48H12G2 family of PCI Express switches originally developed by Integrated Device Technology (IDT), which was subsequently acquired by Renesas Electronics. This family is engineered for demanding enterprise and industrial environments where low latency and high throughput are critical. The specific suffix indicates the package type, temperature grade, and lead-free composition, distinguishing it from other variants within the same functional family.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the rapid evolution of PCIe standards, direct pin-to-pin replacements for PCIe Gen2 switches are rare. Engineers should evaluate next-generation PCIe switches from Renesas or other vendors, ensuring compatibility with existing root complex interfaces and software drivers.