89H48H12G2ZDBLI

Overview

The 89H48H12G2ZDBLI is a PCI Express switch interface IC manufactured by Renesas Electronics. It provides 48 PCIe Gen2 lanes and 12 switch ports, featuring a non-blocking architecture optimized for high-performance system interconnects. The device supports partitionable switch architecture for multi-root support and includes internal buffering with flow control credits. It operates within a temperature range of -40°C to +85°C and utilizes a 676-FCBGA package measuring 27x27 mm. Power supplies include 1V, 2.5V, and 3.3V rails. The component is classified as obsolete.

Feature Summary

• Non-blocking switch architecture providing full line rate throughput for multiple traffic flows regardless of switch loading.
• Partitionable switch architecture enabling true multi-root support for complex system configurations.
• Internal buffering and flow control credits optimized for maximum bandwidth and large payload transfers.

Applications

• High-performance system interconnect switching
• Multi-root server architectures
• Enterprise storage systems

Procurement Notes

This component is officially listed as obsolete or end-of-life by the manufacturer. Verification of availability requires checking authorized distributors for remaining stock or surplus channels. Confirm RoHS compliance status and moisture sensitivity level (MSL) prior to procurement, as legacy components may have specific handling requirements. Ensure compatibility with existing board designs before sourcing.

Selection Notes

Select this part for applications requiring deterministic switching of 48 PCIe Gen2 lanes across 12 ports. Verify that the design accommodates the 676-FCBGA footprint and thermal dissipation needs. Consider the obsolete status when planning long-term production lifecycles. Evaluate alternative newer generation switches if future supply security is a primary constraint.

Part Context

The 89H48H12G2ZDBLI belongs to the PES48H12G2 family of PCIe switches from Renesas (formerly IDT). This series is designed for high-throughput data center and enterprise environments. The 'Z' suffix typically indicates RoHS compliance, while 'DBLI' denotes specific packaging and temperature grade variations within the product line.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the obsolete status, direct pin-to-pin replacements may not exist. Engineers should evaluate next-generation PCIe switches from Renesas or other vendors, ensuring functional equivalence in lane count and port configuration.