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Microchip Technology PM41052B-F3EI
- Part No.:
- PM41052B-F3EI
- Manufacturer:
- Microchip Technology
- Category:
- Specialized
- Package:
- 753-BBGA
- Datasheet:
-
PM41052B-F3EI.pdf
- Description:
- PCIE SWITCH GEN4 BBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,022
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Product details
Overview
PM41052B-F3EI from Microchip Technology is a Gen4 programmable PCIe switch with 52-lane capacity, 28 physical ports (supporting up to 26 NTBs), 14 virtual switch partitions, and integrated hot-plug controllers on all 28 ports-designed for high-reliability NVMe SSD enclosures and pooled storage systems.
For engineers reviewing the PM41052B-F3EI datasheet, PM41052B-F3EI pinout, PM41052B-F3EI application, or PM41052B-F3EI equivalent, key selection criteria include lane count scalability (x1–x16 bifurcation), NTB assignment flexibility, upstream error containment (UEC), real-time eye capture capability, and NVMe-MI in-band/out-of-band enclosure management support.
Technical Context
The PM41052B-F3EI implements a non-blocking Gen4 PCIe switch fabric with full 16 GT/s per lane compliance, supporting manual PHY configuration for optical interconnects and PCIe-compliant link training. It integrates a MIPS processor for firmware execution and provides dedicated hardware for Downstream Port Containment (DPC) and Completion Timeout Synthesis (CTS).
Its I/O subsystem includes up to 11 TWI/SMBus interfaces, 4 SGPIO ports, 4 UARTs, JTAG/EJTAG debug access, and an integrated NVMe controller enabling native SES and MCTP-over-I²C out-of-band management-targeting enterprise storage enclosure control without external microcontrollers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| PCIe Generation | Gen4 (16 GT/s per lane); enables full bandwidth for NVMe Gen4 SSDs and multi-host topologies. |
| Total Lanes | 52 lanes; supports flexible port configurations including x16, x8, x4, x2, and x1 bifurcation without upstream/downstream port restrictions. |
| Physical Ports | 28 ports; each with dedicated hot- and surprise-plug controllers for cable-aware enclosure management. |
| NTB Count | Up to 26 Non-Transparent Bridges; allows secure memory-isolated interconnect between independent hosts or domains. |
| Virtual Partitions | 14 virtual switch partitions; enables resource isolation and independent firmware updates per partition. |
| Error Containment | UEC, DPC, CTS, and AER on all ports; prevents error propagation across domains and ensures system-level fault resilience. |
| Management Interface | NVMe-MI compliant: in-band (SES/NVMe enclosure stack) + out-of-band (MCTP over I²C); eliminates need for separate BMC or management MCU. |
Pinout & Package
PM41052B-F3EI is housed in a 27 mm × 27 mm, 780-pin FC-BGA package (package code: F3EI). Pinout information is not publicly published in standard datasheets and requires Microchip's NDA-protected design files (e.g., PM41052B-F3EI_Pinout.xlsx) for layout implementation.
Key Features
| Feature | Design Value |
|---|---|
| Integrated NVMe Controller | Enables direct in-band enclosure management via NVMe-MI without host CPU involvement or external firmware processor. |
| Real-Time Eye Capture | On-die SERDES signal integrity analysis per lane; reduces validation time and eliminates need for external BERT scopes during bring-up. |
| Programmable UEC | Configurable upstream error blocking per port; isolates faulty downstream devices before errors affect host root complex or other domains. |
| Flexible NTB Assignment | Any physical port can be assigned as NTB endpoint; supports dynamic reconfiguration for multi-host failover and topology adaptation. |
| 11× TWI/SMBus Interfaces | Supports concurrent communication with up to 11 temperature sensors, power monitors, or LED drivers in dense storage enclosures. |
Applications
| PCIe SSD Enclosure Management | Multi-Host NVMe Storage Pooling |
|---|---|
Use Scenario: 2U/4U JBOD with 24–48 NVMe SSDs, front-panel hot-swap, thermal/power monitoring, and LED status indication. IC Role / Device Role / Timing Role: Central PCIe switch and enclosure manager-handling data switching, NTB-based host isolation, and SES/NVMe-MI command routing. Use Value: Eliminates external microcontroller by integrating NVMe-MI stack, reducing BOM cost and board area while enabling firmware-upgradable enclosure logic. | Use Scenario: Shared NVMe storage accessed simultaneously by 2–4 independent servers via separate upstream ports. IC Role / Device Role / Timing Role: PCIe fabric controller with 26 NTBs and 14 virtual partitions-enabling memory-isolated, low-latency interconnect between hosts and SSDs. Use Value: Supports N+1 failover and logical domain separation without host OS modification or hypervisor dependency. |
| High-Density Blade Server I/O Aggregation | Optical PCIe Interconnect Gateway |
Use Scenario: Blade chassis with 8–16 compute blades, each requiring x8 or x16 PCIe connectivity to shared storage and network resources. IC Role / Device Role / Timing Role: Scalable I/O aggregation hub-bifurcating upstream links and managing hot-plug events across all blade slots. Use Value: 28-port count and per-port hot-plug controllers allow full slot-level lifecycle management without chassis-level reset. | Use Scenario: Data center rack-to-rack PCIe extension using active optical cables (AOC) compliant with OCuLink or SFF-8643. IC Role / Device Role / Timing Role: Optical PHY interface coordinator-leveraging manual PHY configuration mode and real-time eye capture for optical link calibration. Use Value: Enables deterministic optical link training and in-field signal integrity tuning without FPGA or external SERDES controller. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable PCIe switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PM41068B-FEI | 68-lane, 36-port, 18 partitions, 36 hot-plug controllers; larger footprint (29 mm × 29 mm, 841-pin). | Targets higher-port-count enclosures (e.g., 36-drive NVMe arrays) or dual-chassis bridging where 52 lanes are insufficient. | Select when >28 ports or >14 partitions are required; verify PCB space and thermal budget for larger package. |
| PM41036B-F3EI | 36-lane, 20-port, 10 partitions, 20 hot-plug controllers; same F3EI package size (27 mm × 27 mm, 780-pin). | Suitable for compact 12–20 drive enclosures or edge storage appliances with constrained board area. | Choose for cost-optimized, space-constrained designs where 52 lanes and 28 ports exceed requirements. |
Compared with PM41068B-FEI and PM41036B-F3EI, the PM41052B-F3EI delivers optimal balance of port count (28), NTB density (26), and package compatibility (F3EI)-making it the preferred choice for mainstream 24–32 drive NVMe enclosures requiring field-upgradable enclosure management and robust error containment.
Availability
PM41052B-F3EI is available at Aetrix Electronics and suitable for PCIe SSD enclosures, multi-host storage pooling, and high-density blade server I/O aggregation requiring stable component supply, long-term lifecycle support, and qualified industrial temperature operation (–40°C to +85°C).
Supply support for PM41052B-F3EI includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Microchip Technology is a U.S.-based semiconductor company specializing in microcontrollers, analog, FPGA, and infrastructure solutions, with leadership in PCIe switching and storage connectivity IP.
The Switchtec PSX Gen4 family-including PM41052B-F3EI-is engineered for enterprise and data center storage systems requiring hardware-enforced reliability, firmware-defined topology control, and integrated NVMe-MI enclosure management.
FAQ
What is the operating temperature range for PM41052B-F3EI?
The PM41052B-F3EI is rated for industrial temperature operation from –40°C to +85°C ambient, validated per Microchip's qualification standards for extended life under thermal cycling and sustained load conditions. This range supports deployment in air-cooled storage enclosures and blade server chassis without forced convection derating. The PM41052B-F3EI maintains full Gen4 link training and error containment functionality across this range.
Does PM41052B-F3EI support PCIe Gen5?
No, PM41052B-F3EI is a Gen4-only device, compliant with PCIe Base Specification Rev 4.0 and CEM 4.0. It operates at 16 GT/s per lane and does not support Gen5 signaling (32 GT/s) or associated features like PAM4 encoding or FLIT mode. Migration to Gen5 requires evaluation of Microchip's next-generation Switchtec products, not PM41052B-F3EI.
How many NTBs can be simultaneously active on PM41052B-F3EI?
The PM41052B-F3EI supports up to 26 concurrently active Non-Transparent Bridges, assignable to any of its 28 physical ports. Each NTB operates independently with dedicated address translation and memory protection, enabling simultaneous multi-host access to shared NVMe storage without software coordination. This capability is fixed in silicon and requires no runtime license.
Is PM41052B-F3EI pin-compatible with other PSX Gen4 variants like PM41068B-FEI?
No, PM41052B-F3EI is not pin-compatible with PM41068B-FEI or other PSX Gen4 members. While both use FC-BGA packages, PM41052B-F3EI uses a 780-pin F3EI variant (27 mm × 27 mm), whereas PM41068B-FEI uses an 841-pin FEI package (29 mm × 29 mm). Signal mapping, power pin distribution, and thermal pad geometry differ-requiring unique PCB layouts for each part number.
What firmware development tools are supported for PM41052B-F3EI?
PM41052B-F3EI is supported by Microchip's Switchtec PSX SDK, which includes drivers, CLI utilities, PCIe analyzer scripts, and reference firmware for NVMe-MI enclosure management. Development requires the ChipLink diagnostic toolset and access to Microchip's secure firmware signing keys. The PM41052B-F3EI's integrated MIPS core executes customer firmware compiled against the SDK's BSP layer.
PM41052B-F3EI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- Switchtec
- Package/Case:
- 753-BBGA
- Packaging:
- Tray
- Product Status:
- Obsolete
- Applications:
- Controller
- Interface:
- JTAG, MII, RMII, UART, 2-Wire SMBus
- Voltage - Supply:
- -
- Supplier Device Package:
- 753-BBGA (29x29)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
PM41052B-F3EI FAQ
1.How can I place an order for PM41052B-F3EI through Aetrix?
Please submit a Request for Quotation (RFQ) for PM41052B-F3EI on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for PM41052B-F3EI reliable?
The price and inventory of PM41052B-F3EI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PM41052B-F3EI is usually 5 days.
3.What payment methods are accepted for PM41052B-F3EI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PM41052B-F3EI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PM41052B-F3EI?
PM41052B-F3EI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PM41052B-F3EI order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for PM41052B-F3EI?
For technical support, including PM41052B-F3EI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PM41052B-F3EI requirements.
6.How does Aetrix verify that PM41052B-F3EI is sourced from the original manufacturer or authorized distributors?
All PM41052B-F3EI products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that PM41052B-F3EI meets industry standards.
7.What is the process for return or replacement of PM41052B-F3EI?
All PM41052B-F3EI units undergo pre-shipment inspection (PSI). If there is an issue with PM41052B-F3EI, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The PM41052B-F3EI part is unused and in its original packaging.
Return procedure for PM41052B-F3EI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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