89H48H12G3ZAHLGI

Overview

The 89H48H12G3ZAHLGI is a 48-lane, 12-port PCI Express Gen3 system interconnect switch manufactured by Renesas Electronics Corporation. It provides up to 96 GBps (768 Gbps) of switching capacity through integrated SerDes supporting 8.0 GT/s operation. The device features a non-blocking architecture with low latency cut-through and supports x8, x4, x2, and x1 port configurations. Packaged in a 27mm x 27mm 676-ball FCBGA, it includes RAS features such as SECDED ECC protection on internal RAMs and Advanced Error Reporting on all ports.

Feature Summary

• High-performance non-blocking switch architecture optimized for high throughput and low latency
• Multi-root support enabling up to 12 fully independent switch partitions with dynamic reconfiguration
• Reliability, Availability and Serviceability (RAS) capabilities including ECRC and end-to-end data path parity protection

Applications

• Enterprise server system interconnect
• Storage array and intelligent I/O systems
• Communications infrastructure

Procurement Notes

Verify the manufacturer designation, as this component originates from IDT and is now part of Renesas Electronics Corporation. Confirm the specific suffix ZAHLGI against official documentation to ensure correct temperature grade and lead-free status. Check current product lifecycle status, as earlier versions of this family have been marked obsolete.

Selection Notes

Select this component for applications requiring deterministic, high-bandwidth PCIe Gen3 connectivity. Ensure the design accommodates the 676-ball FCBGA package dimensions. Verify that the host system supports the required initialization methods, such as SMBus or pin strapping, and confirm compatibility with the target operating environment's power management requirements.

Part Context

This device belongs to the 89H48H12G3 family of PCIe switches, designed for high-performance computing environments. It serves as a critical node for aggregating multiple PCIe endpoints into a unified fabric. The technology leverages proven IDT SerDes capabilities to deliver robust signal integrity across the 48 lanes.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult official Renesas or IDT documentation for cross-reference information regarding newer generations or compatible alternatives.