89HPES34T16ZABLI

Overview

The Renesas Electronics 89HPES34T16ZABLI is a PCIe Gen2 switch IC designed for high-performance system interconnect applications. It provides 32 lanes and 16 ports of non-blocking switching capability, ensuring full line-rate throughput for multiple traffic flows regardless of switch loading. The device supports root-to-peripheral and peer-to-peer data transfers with internal buffering optimized for large payloads. It operates within a commercial temperature range of 0°C to +70°C and utilizes an FCBGA-484 package. Power requirements include 1V, 1.5V, and 3.3V supplies, with a maximum clock frequency of 125 MHz.

Feature Summary

• Non-blocking switch architecture optimized for high-performance system interconnect
• Supports partitionable switch architecture for true multi-root support
• Provides internal buffering and flow control credits optimized for maximum bandwidth

Applications

• High-performance computing systems requiring deterministic latency
• Storage area networks (SAN) and enterprise storage controllers
• Telecommunications infrastructure equipment

Procurement Notes

Verify the specific suffix ZABLI against official datasheets to confirm pinout and electrical characteristics. Confirm RoHS compliance status as markings may vary by production lot. Check for Product Discontinuance Notices or PCN documents from Renesas to assess long-term availability and lifecycle status before finalizing design-in decisions.

Selection Notes

Select this component when a 32-lane, 16-port PCIe Gen2 solution is required for scalable I/O expansion. Ensure the PCB layout supports the FCBGA-484 package dimensions and pitch. Verify that the system power budget accommodates the 1V, 1.5V, and 3.5V rails specified in the datasheet. Compare against sibling models like the 89H24NT6AG2 if fewer lanes are sufficient for the application.

Part Context

This part belongs to the IDT 89HPES series of PCIe switches, which are widely used in server and storage architectures. It succeeds earlier generations of PCIe interconnect solutions, offering enhanced scalability and non-blocking performance compared to basic bridges. The series is known for supporting advanced features like Non-Transparent Bridging (NTB) and movable upstream ports.

Replacement Considerations

Direct replacements may include the 89H24NT6AG2 for reduced lane counts or the 89HPES16NT16G2 for similar port configurations. Verify pin-to-pin compatibility and register-level software compatibility before substitution. Consult Renesas documentation for any functional differences between Gen2 variants.