89H48H12G3YAHLGI8

Overview

The 89H48H12G3YAHLGI8 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 with integrated SerDes supporting 8.0 GT/s Gen3, 5.0 GT/s Gen2, and 2.5 GT/s Gen1 operation. The device features a non-blocking architecture, supports x8/x4/x2/x1 port configurations, and includes RAS capabilities such as ECRC and SECDED ECC. Packaged in a 27mm x 27mm 676-ball FCBGA.

Feature Summary

• High-performance non-blocking switch architecture optimized for high throughput and low latency
• Multi-root support enabling up to 12 fully independent switch partitions with dynamic reconfiguration
• Comprehensive Reliability, Availability, and Serviceability (RAS) including end-to-end data path parity protection
• Flexible initialization options supporting Root complex, Serial EEPROM, pin strapping, or SMBus

Applications

• Enterprise servers requiring high-speed inter-domain communication
• Storage arrays and intelligent I/O systems
• Communications infrastructure equipment

Procurement Notes

Verify the manufacturer designation, as IDT products are now part of Renesas Electronics. Confirm the specific suffix YAHLGI8 against official documentation to ensure correct package and temperature grade alignment. Check current lifecycle status as these components may be subject to discontinuation notices.

Selection Notes

Select this component for applications demanding deterministic switching with minimal board layers. Ensure the design accommodates the 676-ball FCBGA footprint. Verify that the host system supports the required PCIe Gen3 specifications and power management states like ASPM and D3.

Part Context

This device belongs to the 89H48H12G3 family of PCIe switches. It serves as a successor to Gen2 variants like the 89H48H12G2, offering doubled bandwidth per lane. The product line targets high-density server and storage environments where multi-root support and advanced error reporting are critical.

Replacement Considerations

The 89H48H12G2 is a compatible Gen2 alternative within the same family. Verify pinout compatibility and software configuration requirements when migrating between Gen2 and Gen3 versions.