My Inquiry
My Account
Microchip Technology PM50052B1-FEI
- Part No.:
- PM50052B1-FEI
- Manufacturer:
- Microchip Technology
- Category:
- Specialized
- Package:
- -
- Datasheet:
-
PM50052B1-FEI.pdf
- Description:
- PFX 52XG5 FANOUT PCIE SWITCH
- Quantity:
- Payment:
- Shipping:
Inventory:3,892
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
PM50052B1-FEI from Microchip Technology is a Gen 5 PCIe fanout switch IC with 52 lanes, 14 virtual switch partitions, and 28 hot-plug controllers-designed for high-reliability interconnect in data center servers and telecom infrastructure where deterministic latency and fault containment are critical.
For engineers reviewing the PM50052B1-FEI datasheet, PM50052B1-FEI pinout, PM50052B1-FEI application, or PM50052B1-FEI equivalent, key selection criteria include PCIe Gen 5 32 GT/s compliance, NTB count (up to 48), downstream port containment (DPC), real-time eye capture capability, and integrated MIPS processor for firmware-managed diagnostics.
Technical Context
The PM50052B1-FEI implements a non-blocking, cut-through PCIe Gen 5 switch fabric with support for up to 48 assignable nontransparent bridges (NTBs) and logical NT interconnect for scalable topologies. It integrates a MIPS-based embedded processor for runtime configuration, error handling, and secure boot image authentication.
Each of its 28 hot-plug controllers manages independent surprise- and hot-plug events per downstream port, while Downstream Port Containment (DPC) and Completion Timeout Synthesis (CTS) enforce end-to-end transaction integrity without upstream host intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Lanes | 52 PCIe Gen 5 lanes-enables x16 + x8 + x8 + x8 + x8 expansion from a single upstream root port |
| Virtual Partitions | 14 independent switch partitions-allows hardware-isolated traffic domains for multi-tenant or safety-critical workloads |
| Hot-Plug Controllers | 28 dedicated controllers-one per downstream port-enables concurrent hot-swap of NVMe SSDs or accelerators without system reset |
| NT Bridges | Up to 48 configurable NTBs-supports peer-to-peer memory-mapped interconnect across isolated domains or chassis boundaries |
| PCIe Speed | Gen 5 at 32 GT/s-provides 4 GB/s per x16 link with full backward compatibility to Gen 1–4 |
| Error Handling | Downstream Port Containment (DPC) + Advanced Error Reporting (AER)-isolates faulty endpoints before errors propagate to host |
| Debug Interface | Real-time eye capture + JTAG/EJTAG + UART/TWI-enables signal integrity validation and firmware-level debug without external probes |
Pinout & Package
PM50052B1-FEI is housed in a 27 mm × 27 mm, 780-pin FC-BGA package with 1.0 mm ball pitch. Pin assignment follows Microchip's Switchtec PFX Gen 5 standard layout, optimized for PCIe Gen 5 signal integrity and thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLK_IN[0:1] | PCIe Reference Clock Input | Differential 100 MHz clock pair for Gen 5 link training and timing synchronization |
| PERST# | Global Reset Input | Active-low asynchronous reset that initializes switch logic, SerDes, and embedded processor |
| PRSNT#_D[0:27] | Hot-Plug Presence Detect | Per-port presence sense inputs enabling automatic slot enumeration and power sequencing |
| GPIO[0:31] | Configurable I/O Bank | 32 bidirectional pins supporting SMBus, SGPIO, LED control, or custom status signaling |
| JTAG_TCK/TMS/TDO/TDI | IEEE 1149.1 Boundary Scan | Full boundary-scan access for manufacturing test and low-level firmware recovery |
Key Features
| Feature | Design Value |
|---|---|
| Non-blocking Gen 5 Fabric | Zero-latency cut-through switching across all 52 lanes-eliminates packet buffering delays in storage and AI accelerator interconnects |
| Integrated MIPS Processor | On-die 32-bit MIPS core running proprietary firmware-enables autonomous error recovery, topology discovery, and secure boot without host CPU involvement |
| Real-time Eye Capture | On-chip SerDes eye diagram acquisition-validates signal integrity per lane during live operation without external BERT or scope |
| End-to-End Data Integrity | ECC protection on all internal RAMs + CRC on TLP headers-prevents silent data corruption in mission-critical network and defense systems |
| Secure Boot Authentication | Hardware-verified signature check of firmware images-blocks unauthorized or tampered configuration code execution |
Applications
| Data Center NVMe Storage Expansion | 5G Radio Unit (RU) Baseband Interconnect |
|---|---|
Use Scenario: A 1U server connects one x16 CPU root port to eight x4 NVMe SSDs via a single PM50052B1-FEI switch. IC Role / Device Role / Timing Role: PCIe fanout switch providing lane bifurcation, hot-plug management, and DPC isolation between SSDs. Use Value: Enables simultaneous SSD replacement without reboot; DPC prevents one failing drive from disrupting others' I/O. | Use Scenario: In an Open RAN radio unit, PM50052B1-FEI routes PCIe Gen 5 traffic between FPGA-based baseband processors and fronthaul interface cards. IC Role / Device Role / Timing Role: Deterministic low-latency interconnect with sub-100 ns cut-through latency and precise timing alignment across distributed processing blocks. Use Value: Maintains strict 100 µs fronthaul timing budget while supporting dynamic reconfiguration of processing pipelines. |
| Defense-Avionics Vehicle Computing | AI Accelerator Aggregation Chassis |
Use Scenario: Ruggedized airborne server uses PM50052B1-FEI to interconnect GPU, FPGA, and sensor I/O modules under DO-254/ED-80 compliance. IC Role / Device Role / Timing Role: Fault-containment switch partitioning safety-critical and non-critical subsystems into separate virtual domains. Use Value: DPC and NTB isolation ensure sensor data path remains operational even if GPU driver crashes or overheats. | Use Scenario: Cloud AI training chassis aggregates 16 x16 GPUs using two cascaded PM50052B1-FEI switches in a fat-tree topology. IC Role / Device Role / Timing Role: High-bandwidth, low-jitter PCIe Gen 5 switch enabling peer-to-peer GPU direct RDMA with <1.2 µs round-trip latency. Use Value: Eliminates host memory bottlenecks by enabling GPU-to-GPU DMA transfers at full Gen 5 bandwidth. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PCIe fanout switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PM51052B1-FEI | PSX variant with identical lane count (52), partitions (14), and hot-plug controllers (28), but supports SR-IOV and enhanced security features including secure boot key revocation. | Required for virtualized environments needing SR-IOV VF isolation or FIPS-compliant key lifecycle management. | Select PM51052B1-FEI when hypervisor-aware partitioning or cryptographic key rotation is mandatory. |
| AMD Pensando DPU P2000 | ARM-based programmable DPU with integrated PCIe switch, NIC, and crypto engines-not a pure fanout switch; lacks NTB count and DPC granularity of PM50052B1-FEI. | Suitable for offloading TCP/IP, TLS, and storage protocols-but not for deterministic, low-latency PCIe-only expansion. | Choose AMD Pensando only when protocol acceleration and software-defined networking are primary requirements over raw PCIe scalability. |
Compared with PM51052B1-FEI, the PM50052B1-FEI offers identical switching capacity but omits SR-IOV and advanced key revocation; versus AMD Pensando P2000, it delivers higher PCIe lane density, lower latency, and hardware-enforced fault containment-making it optimal for bare-metal storage and telecom interconnect where switch determinism is non-negotiable.
Availability
PM50052B1-FEI is available at Aetrix Electronics and suitable for data center storage expansion, 5G RU interconnect, defense avionics computing, and AI accelerator aggregation requiring stable component supply across long-lifecycle programs.
Supply support for PM50052B1-FEI 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 devices, FPGAs, and connectivity solutions with emphasis on reliability, security, and long-term product availability.
The Switchtec PFX family-including PM50052B1-FEI-is engineered for high-availability PCIe infrastructure in data centers, telecom, defense, and industrial systems demanding hardware-enforced fault isolation and deterministic Gen 5 performance.
FAQ
What PCIe generation and data rate does the PM50052B1-FEI support?
The PM50052B1-FEI supports PCIe Gen 5 with a data rate of 32 GT/s per lane. It maintains full backward compatibility with Gen 1 through Gen 4, allowing seamless integration into existing infrastructure. The switch implements native Gen 5 link training and supports manual PHY configuration for signal integrity tuning. All 52 lanes operate at Gen 5 speed unless configured otherwise via firmware.
How many virtual switch partitions does the PM50052B1-FEI support, and what is their purpose?
The PM50052B1-FEI supports 14 virtual switch partitions. These partitions provide hardware-isolated traffic domains, enabling multi-tenant resource allocation, safety-critical domain separation (e.g., DO-254 avionics), or secure workload consolidation. Each partition operates independently with dedicated address translation, ACLs, and error containment-ensuring faults in one partition do not affect others.
Does the PM50052B1-FEI include an embedded processor, and what functions does it perform?
Yes, the PM50052B1-FEI integrates a MIPS-based embedded processor. It executes Microchip's Switchtec firmware to manage hot-plug events, perform real-time diagnostics (including eye capture), enforce security policies (e.g., secure boot), and handle error containment autonomously. This eliminates dependency on host CPU intervention for routine switch management tasks.
What error containment features are implemented in the PM50052B1-FEI?
The PM50052B1-FEI implements Downstream Port Containment (DPC), Advanced Error Reporting (AER), and Completion Timeout Synthesis (CTS). DPC isolates faulty endpoints at the port level; AER provides detailed error classification per transaction; CTS synthesizes timeouts to prevent upstream hosts from entering error states due to incomplete non-posted requests-collectively ensuring system-level resilience.
Is the PM50052B1-FEI pin-compatible with other members of the Switchtec PFX Gen 5 family?
No, the PM50052B1-FEI is not pin-compatible with other PFX Gen 5 variants such as PM50100B1-FEI or PM50084B1-FEI. While all share the same FC-BGA package footprint and ball pitch, lane routing, power delivery, and GPIO assignments differ significantly across lane counts. PCB layout must be specific to the 52-lane configuration of the PM50052B1-FEI.
PM50052B1-FEI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- Switchtec
- Package/Case:
- -
- Packaging:
- Tray
- Product Status:
- Active
- Applications:
- Fanout PCIe Switch
- Interface:
- 2-Wire, GMII, GPIO, JTAG, PCIe, RMII, UART
- Voltage - Supply:
- -
- Supplier Device Package:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
PM50052B1-FEI FAQ
1.How can I place an order for PM50052B1-FEI through Aetrix?
Please submit a Request for Quotation (RFQ) for PM50052B1-FEI 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 PM50052B1-FEI reliable?
The price and inventory of PM50052B1-FEI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PM50052B1-FEI is usually 5 days.
3.What payment methods are accepted for PM50052B1-FEI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PM50052B1-FEI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PM50052B1-FEI?
PM50052B1-FEI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PM50052B1-FEI 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 PM50052B1-FEI?
For technical support, including PM50052B1-FEI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PM50052B1-FEI requirements.
6.How does Aetrix verify that PM50052B1-FEI is sourced from the original manufacturer or authorized distributors?
All PM50052B1-FEI 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 PM50052B1-FEI meets industry standards.
7.What is the process for return or replacement of PM50052B1-FEI?
All PM50052B1-FEI units undergo pre-shipment inspection (PSI). If there is an issue with PM50052B1-FEI, 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 PM50052B1-FEI part is unused and in its original packaging.
Return procedure for PM50052B1-FEI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PM50052B1-FEI Tags
-
NVT4857UKAZ
NXP Semiconductors
-
TCA8418RTWR
Texas Instruments
-
PCA9546APWR
Texas Instruments
-
MD0100N8-G
Microchip Technology
-
PCA9548APW,118
NXP Semiconductors
-
PCA9540BDP,118
NXP Semiconductors
-
PCA9548APWR
Texas Instruments
-
PCA9546APW,118
NXP Semiconductors
-
PTN3360DBS,518
NXP Semiconductors
-
PCA9546ABS,118
NXP Semiconductors
-
PCA9518PWR
Texas Instruments
-
PCA9545APW,118
NXP Semiconductors
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
