89H48H12G3YAHLG

Overview

The 89H48H12G3YAHLG is a 48-lane, 12-port PCI Express Gen3 system interconnect switch manufactured by Renesas Electronics. It delivers 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 provides multi-root support for up to 12 independent partitions and includes comprehensive reliability features such as SECDED ECC protection on internal RAMs.

Feature Summary

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

Applications

• Enterprise servers requiring high-speed system interconnect switching
• Storage arrays and intelligent I/O systems with inter-domain communication needs
• Communications infrastructure utilizing multiple simultaneous peer-to-peer traffic flows

Procurement Notes

Verify the specific ordering suffix YAHLG against official documentation to confirm package type, temperature grade, and lead-free status. Confirm current product lifecycle status as this component family has undergone discontinuation notices. Ensure compatibility with required initialization methods such as Serial EEPROM or pin strapping before procurement.

Selection Notes

Select this component when designing systems requiring 48 PCIe lanes with deterministic switching performance. Verify that the design supports the necessary power management states including ASPM and D3 hot. Ensure the motherboard layout accommodates the 676-ball FCBGA package dimensions and thermal requirements for industrial or commercial operating ranges.

Part Context

This part belongs to the IDT 89H48H12 series of PCIe switches, originally developed by Integrated Device Technology before its acquisition by Renesas Electronics. It serves as a successor to earlier Gen2 variants like the 89H48H12G2, offering enhanced bandwidth capabilities compliant with the PCI Express Base Specification 3.0.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consider evaluating the 89KTPES48H12G3 evaluation board for functional verification if replacing existing hardware designs.