89H32NT24BG2ZAHLG8

Overview

The 89H32NT24BG2ZAHLG8 is a PCIe Gen2 system interconnect switch manufactured by Renesas Electronics Corporation. It provides 32 lanes and 24 ports of high-performance, deterministic switching with non-blocking architecture. The device supports multiple Nontransparent Bridging (NTB) functions, movable upstream support, and on-board DMA. It operates at a maximum clock frequency of 125 MHz with data rates up to 256 Gb/s. Power supplies include 1 V, 2.5 V, and 3.3 V. The component is housed in a 484-FCBGA package measuring 23x23 mm and functions within an operating temperature range of -40°C to +85°C.

Feature Summary

• Non-blocking switch architecture optimized for high-performance system interconnect applications
• Partitionable switch architecture enabling true multi-root support capabilities
• Supports multiple Nontransparent Bridging (NTB) functions for isolated domain communication
• Features internal buffering and flow control credits optimized for large payloads

Applications

• High-performance server system interconnect switching
• Storage area network (SAN) fabric connectivity
• Multi-root compute node integration
• Enterprise infrastructure networking equipment

Procurement Notes

Verify the specific suffix ZAHLG8 against official Renesas documentation to confirm lead-free status and industrial temperature grade. Confirm current product lifecycle status as older variants may be obsolete. Ensure compatibility with existing PCB footprints for the 484-FCBGA package before procurement.

Selection Notes

Select this model when 24 downstream ports and 32 upstream lanes are required for PCIe Gen2 systems. Consider partitionable architecture needs for multi-root configurations. Verify voltage requirements for 1V, 2.5V, and 3.3V domains match the target board design. Compare against newer Gen3/Gen4 retimers if higher bandwidth is needed.

Part Context

This component belongs to the IDT 89H series of PCIe switches, originally developed by Integrated Device Technology before its acquisition by Renesas. These devices were designed for enterprise computing environments requiring low latency and high throughput. The 89H32NT24 variant represents a high-port-count solution within this family.

Replacement Considerations

Publicly confirmed direct substitute part numbers for this specific legacy configuration are not available in standard reference databases. Users should consult Renesas for potential end-of-life alternatives or next-generation PCIe switch families that maintain similar port counts and interface specifications.