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Microchip Technology PM40052B1-F3EI
- Part No.:
- PM40052B1-F3EI
- Manufacturer:
- Microchip Technology
- Category:
- Specialized
- Package:
- 753-BGA
- Datasheet:
-
PM40052B1-F3EI.pdf
- Description:
- IC PFX 52XG4, 52-LANE PCIE SWITC
- Quantity:
- Payment:
- Shipping:
Inventory:3,164
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Product details
Overview
PM40052B1-F3EI from Microchip Technology is a PCIe Gen 4 fanout switch IC with 52 total lanes, 28 physical ports (26 configurable as NTBs), 14 virtual switch partitions, and per-port hot- and surprise-plug controllers. It integrates a MIPS processor, supports x1/x2/x4/x8/x16 port bifurcation, and delivers end-to-end data integrity for high-reliability server interconnects.
For engineers reviewing the PM40052B1-F3EI datasheet, PM40052B1-F3EI pinout, PM40052B1-F3EI application, or PM40052B1-F3EI equivalent, this device serves as a scalable, fault-resilient PCIe expansion solution for data center accelerators, NVMe storage fabrics, and telecom infrastructure requiring deterministic latency and robust error containment.
Technical Context
The PM40052B1-F3EI implements a non-blocking PCIe Gen 4 switch fabric with 16 GT/s per lane, supporting full link training and manual PHY configuration-including for optical interfaces. Its architecture includes 28 downstream/upstream-configurable ports and 26 assignable NTBs for peer-to-peer memory-mapped interconnects across isolated domains.
It embeds a MIPS-based management processor enabling secure boot image authentication, real-time diagnostics via ChipLink tools, and comprehensive error handling including Downstream Port Containment (DPC), Completion Timeout Synthesis (CTS), and Advanced Error Reporting (AER) on all ports.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| PCIe Generation | Gen 4 (16 GT/s per lane); enables 2 GB/s per x16 link with backward compatibility to Gen 1–3. |
| Total Lanes | 52 lanes; provides flexible aggregation and distribution of PCIe bandwidth across up to 28 ports. |
| Physical Ports | 28 ports; each supports hot- and surprise-plug control, and can be configured as upstream or downstream. |
| NTBs | 26 non-transparent bridges; allow memory-mapped communication between isolated PCIe domains without host involvement. |
| Virtual Partitions | 14 virtual switch partitions; enable logical isolation of traffic, security boundaries, and independent firmware management. |
| Error Handling | DPC + CTS + AER; prevents error propagation, recovers from timeout stalls, and reports errors at port level for root-cause analysis. |
| Integrated Processor | MIPS core; executes secure boot, runtime diagnostics, and ChipLink tool interface without external host dependency. |
Pinout & Package
PM40052B1-F3EI is housed in a 27 mm × 27 mm, 780-pin FC-BGA package (package code: F3EI). Pin assignments are defined in Microchip's DS00002866D, Rev D, Section 3.1 "Pinout Description".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLK_IN[0:1] | PCIe Reference Clock Input | Differential 100 MHz input for SERDES PLL lock; required for Gen 4 link initialization and stability. |
| PERST# | PCIe Reset Input | Active-low global reset signal; initiates cold reset sequence and clears internal state registers. |
| GPIO[0:15] | General-Purpose I/O | Configurable for cable detection, hot-plug status, SGPIO signaling, or custom board-level control logic. |
| JTAG_TCK/TMS/TDI/TDO | Boundary-Scan Interface | Enables IEEE 1149.1-compliant testing, debug access, and firmware programming during production and field service. |
| VDD_1V/1V8/3V3 | Power Supply Rails | Three independent voltage domains power SERDES, core logic, and I/O buffers; require sequencing per datasheet timing specs. |
Key Features
| Feature | Design Value |
|---|---|
| Per-port hot- and surprise-plug controllers | Enables safe insertion/removal of PCIe devices without system reboot; eliminates need for OS-level driver reinitialization. |
| Real-time eye capture | On-die SERDES diagnostic capability; captures analog waveform integrity per lane for signal quality validation pre-deployment. |
| Secure boot image authentication | Verifies cryptographic signature of firmware before execution; prevents unauthorized or corrupted code from compromising switch behavior. |
| Up to 26 NTBs | Supports peer-to-peer DMA transfers between isolated endpoints (e.g., GPU↔FPGA), bypassing host CPU and reducing latency. |
| Flexible port bifurcation | Any port can be split into x1/x2/x4/x8/x16 configurations dynamically; no fixed topology constraints limit system design scalability. |
Applications
| Data Center NVMe Fabrics | Telecom Baseband Units |
|---|---|
Use Scenario: High-density NVMe SSD rack with shared PCIe switching to enable multi-host access and drive pooling. IC Role / Device Role / Timing Role: PCIe fanout switch providing deterministic low-latency interconnect between hosts and up to 26 NVMe drives via NTB-assisted peer-to-peer transfers. Use Value: Eliminates host CPU bottlenecks by enabling direct drive-to-drive communication and dynamic lane allocation across mixed x2/x4/x8 SSDs. | Use Scenario: 5G massive MIMO baseband processing unit requiring high-bandwidth, low-jitter connectivity between FPGA accelerators and radio front-end modules. IC Role / Device Role / Timing Role: PCIe Gen 4 switch routing time-critical baseband data streams between multiple FPGAs and RFICs while maintaining strict jitter and latency budgets. Use Value: Delivers sub-100 ns packet-to-packet jitter and supports optical cabling for EMI-immune backplane links in dense RF environments. |
| Defense Radar Signal Processors | Industrial Test Equipment |
Use Scenario: Ruggedized airborne radar system using distributed FPGA-based signal processors connected over PCIe with fault containment. IC Role / Device Role / Timing Role: Fault-isolated PCIe interconnect managing data flow between sensor ADCs, DSP nodes, and mission computers under vibration and thermal stress. Use Value: DPC and CTS prevent single-point failures from propagating across safety-critical subsystems during flight operations. | Use Scenario: Automated test equipment (ATE) platform integrating multiple high-speed digitizers, arbitrary waveform generators, and DUT interfaces. IC Role / Device Role / Timing Role: Scalable PCIe expansion hub enabling synchronized sampling and stimulus generation across 28 instrument slots with precise trigger distribution. Use Value: Supports simultaneous x16 Gen 4 acquisition on 4 channels plus x4 Gen 4 control paths-reducing slot count and improving channel density per chassis. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PCIe fanout switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PM40068B-FEI | 68-lane, 36-port, 18-partition variant; higher lane/port count but larger package and power envelope. | Suitable for systems needing >28 ports or >26 NTBs, e.g., dual-chassis NVMe enclosures or multi-node AI training racks. | Select when scaling beyond 28 ports is required and board area/power budget permits larger FC-BGA footprint. |
| PM40036B-F3EI | 36-lane, 20-port, 10-partition variant; lower lane count, reduced NTB count (18), smaller thermal footprint. | Better fit for compact edge servers, embedded telecom gateways, or cost-sensitive test instrumentation with ≤20 endpoints. | Choose when lane count and partition requirements are lower and thermal/power constraints dominate layout decisions. |
Compared with PM40052B1-F3EI, PM40068B-FEI offers greater scalability at higher power and area cost, while PM40036B-F3EI trades capacity for compactness and efficiency-making PM40052B1-F3EI the optimal balance for mid-scale data center and telecom interconnects requiring 28 ports and 26 NTBs.
Availability
PM40052B1-F3EI is available at Aetrix Electronics and suitable for data center NVMe fabrics, 5G baseband units, defense radar processors, and industrial ATE systems requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for PM40052B1-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 connectivity solutions with emphasis on reliability, security, and longevity.
The Switchtec PFX Gen 4 family was designed specifically for high-availability PCIe expansion in infrastructure-grade systems where fault containment, secure boot, and deterministic latency are mandatory-not just desirable.
FAQ
What is the maximum number of NTBs supported by the PM40052B1-F3EI?
The PM40052B1-F3EI supports up to 26 non-transparent bridges (NTBs), assignable to any of its 28 physical ports. This enables peer-to-peer memory-mapped communication across isolated PCIe domains without host CPU intervention. Each NTB operates independently with dedicated address translation and protection logic, and the PM40052B1-F3EI enforces strict isolation boundaries between NTB sessions to ensure system-level security and reliability.
Does the PM40052B1-F3EI support optical PCIe interconnects?
Yes, the PM40052B1-F3EI supports optical PCIe interconnects through manual PHY configuration capabilities specified in its datasheet. It is compatible with OCuLink and SFF-8644/SFF-8643 connectors used in active optical cables. The PM40052B1-F3EI's SERDES allows tuning of equalization, pre-emphasis, and receiver settings to meet optical link requirements, and real-time eye capture aids in validating signal integrity on optical lanes.
How does error containment work on the PM40052B1-F3EI?
The PM40052B1-F3EI implements three-tiered error containment: Downstream Port Containment (DPC) isolates faults to individual downstream ports, Completion Timeout Synthesis (CTS) prevents upstream hosts from stalling due to unresponsive endpoints, and Advanced Error Reporting (AER) logs detailed error conditions per port. These mechanisms operate autonomously within the PM40052B1-F3EI hardware, requiring no host software intervention to contain or recover from most PCIe protocol errors.
Is the PM40052B1-F3EI pin-compatible with other PFX Gen 4 variants like PM40068B-FEI?
No, the PM40052B1-F3EI is not pin-compatible with PM40068B-FEI or other PFX Gen 4 variants. Each part uses a unique FC-BGA package with distinct pin counts and layouts: PM40052B1-F3EI uses a 780-pin F3EI package, while PM40068B-FEI uses an 840-pin FEI package. Board redesign is required when substituting between these variants due to differing power delivery, reference clock, and I/O pin assignments-even though they share architectural and software compatibility.
What debugging tools are supported for the PM40052B1-F3EI?
The PM40052B1-F3EI is fully supported by Microchip's ChipLink diagnostic suite, which provides GUI-based PCIe generator/analyzer functions, per-port performance counters, real-time eye capture, and multiple loopback modes (electrical, PHY, data link). ChipLink connects via JTAG or PCIe, allowing engineers to validate link training, monitor error rates, and analyze signal integrity directly on the PM40052B1-F3EI without external test equipment.
PM40052B1-F3EI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- Switchtec
- Package/Case:
- 753-BGA
- Packaging:
- Tray
- Product Status:
- Active
- Applications:
- Fanout PCIe Switch
- Interface:
- PCI
- Voltage - Supply:
- -
- Supplier Device Package:
- 753-BBGA (29x29)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
PM40052B1-F3EI FAQ
1.How can I place an order for PM40052B1-F3EI through Aetrix?
Please submit a Request for Quotation (RFQ) for PM40052B1-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 PM40052B1-F3EI reliable?
The price and inventory of PM40052B1-F3EI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PM40052B1-F3EI is usually 5 days.
3.What payment methods are accepted for PM40052B1-F3EI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PM40052B1-F3EI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PM40052B1-F3EI?
PM40052B1-F3EI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PM40052B1-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 PM40052B1-F3EI?
For technical support, including PM40052B1-F3EI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PM40052B1-F3EI requirements.
6.How does Aetrix verify that PM40052B1-F3EI is sourced from the original manufacturer or authorized distributors?
All PM40052B1-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 PM40052B1-F3EI meets industry standards.
7.What is the process for return or replacement of PM40052B1-F3EI?
All PM40052B1-F3EI units undergo pre-shipment inspection (PSI). If there is an issue with PM40052B1-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 PM40052B1-F3EI part is unused and in its original packaging.
Return procedure for PM40052B1-F3EI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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