PM8265B-F3EI

Overview

The Microchip Technology PM8265B-F3EI is a SmartROC 3200e PCIe Gen 4 SAS-4 Tri-Mode Storage Controller. It features an 8x16 port configuration with integrated encryption and supports up to 32 storage lanes. The device utilizes a 72-bit DDR4 memory interface and is packaged in a 25 mm × 25 mm, 0.8 mm pitch, 900-pin FCBGA.

Feature Summary

• Tri-mode support for NVMe, SAS, and SATA media with automatic link negotiation
• Integrated Switchtec PCIe Gen 4 switch enabling low-latency NVMe connectivity
• Hardware root-of-trust with Secure Boot and firmware signing capabilities
• Dynamic Channel Multiplexing (DCM) for bandwidth aggregation over SAS-4 links

Applications

• Enterprise rack servers requiring universal bay architectures
• High-performance NVMe RAID configurations with data-at-rest encryption
• Dense 2U server deployments supporting mixed drive types
• Cloud data center storage solutions

Procurement Notes

Verify the specific ordering suffix against official Microchip documentation to confirm package dimensions and pin count. Ensure compatibility with required DDR4 memory specifications and host interface requirements before procurement.

Selection Notes

Select this model for applications requiring integrated encryption within the SmartROC 3200e series. Compare port counts and memory bit-widths against other family members like the PM8264B-F3EI or PM8268B-FEI to match specific lane and bandwidth needs.

Part Context

This component belongs to the SmartROC 3200 family of PCIe Gen 4 SAS-4 controllers. It provides full RAID-enabled NVMe/SAS/SATA performance with advanced caching and security features designed for next-generation enterprise and cloud data centers.

Replacement Considerations

Compatible alternatives within the same family include the PM8264B-F3EI for non-encrypted variants or the PM8269B-FEI for higher-density 144-bit DDR4 configurations. Verify pinout and thermal requirements when substituting.