89HPES12N3AZGBCG

Specialized Overview

The Renesas 89HPES12N3AZGBCG is a PCI Express switch interface IC belonging to the PRECISE series. It provides high-performance I/O expansion and switching functions between one PCIe upstream port and two downstream ports, or peer-to-peer switching between downstream ports. The device supports 12 PCIe Gen2 lanes across three switch ports. It features a switch architecture optimized for I/O expansion, supporting root-to-peripheral and peer-to-peer data transfers. Internal buffering and flow control credits are optimized for maximum bandwidth and large payloads. The component operates at a supply voltage of 3.3V and is housed in a 324-CABGA package with dimensions of 19x19 mm.

Specialized Feature Summary

• Provides high-performance I/O expansion and switching functions between a PCIe upstream port and two downstream ports or peer-to-peer switching between downstream ports.
• Switch architecture optimized for I/O Expansion supports root-to-peripheral (upstream-to-downstream) and peer-to-peer (downstream-to-downstream) data transfers.
• Internal buffering and flow control credits optimized for maximum bandwidth and large payloads.

Specialized Applications

• PCIe Switch Interface
• I/O Expansion Systems

Specialized Procurement Notes

Verify the exact part number suffix against official Renesas documentation, as variations such as AZCBCG appear in distributor records. Confirm moisture sensitivity level and lead-free status via the specific datasheet. Check current availability status as some variants may be discontinued or have restricted supply. Ensure the ordering information matches the required package type and electrical specifications before procurement.

Specialized Selection Notes

Select this component when a non-blocking switch architecture is required for high-performance system interconnects. It is suitable for applications needing 12 PCIe Gen2 lanes distributed across multiple ports. Consider the 324-CABGA package constraints for PCB layout. Verify compatibility with system power requirements of 3.3V. Evaluate if the internal buffering capabilities meet the bandwidth demands of the connected peripherals.

Specialized Part Context

This device is part of the 89HPES12N3A series from Renesas Electronics. It serves as a specialized interface IC within the broader category of PCI Interface ICs. The series includes variants like 89HPES12T3G2ZABC and 89HPES24N3, differing primarily in lane counts and generation support. It is designed for deterministic system interconnect switching in complex electronic architectures.

Specialized Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult Renesas official documentation for direct replacements or cross-reference with similar PRECISE series switches like the 89HPES24N3 for higher lane counts. Verify pinout and electrical compatibility before considering alternative components.