My Inquiry
My Account
Microchip Technology PM50100B1-FEI
- Part No.:
- PM50100B1-FEI
- Manufacturer:
- Microchip Technology
- Category:
- Specialized
- Package:
- -
- Datasheet:
-
PM50100B1-FEI.pdf
- Description:
- PFX 100XG5 FANOUT PCIE SWITCH
- Quantity:
- Payment:
- Shipping:
Inventory:2,028
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
PM50100B1-FEI from Microchip Technology is a PCIe Gen 5 fanout switch IC with 100 lanes, 26 virtual switch partitions, and 52 hot-plug controllers-designed as a high-reliability interconnect for data center servers and telecom infrastructure requiring deterministic latency and end-to-end data integrity.
For engineers reviewing the PM50100B1-FEI datasheet, PM50100B1-FEI pinout, PM50100B1-FEI application, or PM50100B1-FEI equivalent, key selection criteria include Gen 5 32 GT/s lane count, NTB assignment flexibility, DPC/AER error containment, and integrated MIPS processor support for firmware-defined routing and diagnostics.
Technical Context
The PM50100B1-FEI implements a non-blocking PCIe Gen 5 switch fabric with cut-through DMA engine supporting up to 64 channels and real-time eye capture for SERDES validation. It integrates a MIPS-based management processor enabling in-band configuration and secure boot image authentication.
Each of its 52 ports supports independent hot- and surprise-plug control, downstream port containment (DPC), and completion timeout synthesis (CTS) to isolate upstream host errors. Logical non-transparent bridging (NTB) is assignable per port with direct BAR windowing and sub-windowing for memory-mapped inter-partition communication.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Lane Count | 100 PCIe Gen 5 lanes (32 GT/s) - enables full x16 host uplink + multiple x8/x4/x2 downstream links without lane aggregation bottlenecks |
| Virtual Partitions | 26 independent switch partitions - allows hardware-isolated traffic domains for multi-tenant server or NFV workloads |
| Hot-Plug Controllers | 52 per-port controllers - supports concurrent hot-swap of NVMe SSDs, accelerators, or mezzanine cards without system reset |
| Nontransparent Bridges | 48 configurable NTBs - enables peer-to-peer memory access across isolated partitions with address translation via BAR windows |
| Error Containment | DPC + AER + CTS - prevents single-port failure from propagating to upstream root complex or adjacent ports |
| Integrated Processor | MIPS core with secure boot - executes switch firmware, manages configuration space, and hosts ChipLink diagnostic agent |
| I/O Interfaces | SGPIO, TWI/SMBus, UART, JTAG/EJTAG, RMII/GMII - provides sideband management, debug, and auxiliary Ethernet connectivity |
Pinout & Package
PM50100B1-FEI is housed in a 27 mm × 27 mm, 1156-ball FC-BGA package (0.8 mm pitch) with dedicated power/ground ball arrays, differential PCIe lane pairs arranged in serpentine rows, and sideband signal banks for TWI, UART, SGPIO, and JTAG.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLKREQ#_0–CLKREQ#_51 | Hot-plug request control | Active-low per-port signal initiating hot-plug enumeration sequence; tied to each downstream slot's presence detect |
| PERST#_0–PERST#_51 | Per-port reset | Independent reset assertion for each downstream device; isolates reset propagation across partitions |
| PRSNT#_0–PRSNT#_51 | Presence detect input | Monitors physical card insertion status per port; triggers CLKREQ# and PERST# sequencing |
| SGPIO[0:3] | Serial GPIO bus | 4-wire SFF-8485-compliant interface for LED control and slot status reporting to chassis management controller |
| TWI_SCL/TWI_SDA | Two-wire interface | SMBus-compatible management bus for reading temperature sensors, EEPROMs, or configuring sideband peripherals |
| JTAG_TCK/TMS/TDI/TDO | Boundary scan interface | IEEE 1149.1-compliant test access port for silicon validation, debug, and firmware programming |
Key Features
| Feature | Design Value |
|---|---|
| Gen 5 Cut-Through DMA | Ultra-low-latency DMA engine bypasses store-and-forward buffering, reducing TLP transit time by >40% vs. store-forward switches |
| Real-Time Eye Capture | On-die SERDES eye diagram sampling at line rate enables field-deployable signal integrity validation without external BERT |
| End-to-End Data Integrity | ECC protection on all internal RAMs (configuration, statistics, buffer memory) prevents silent data corruption in mission-critical systems |
| Secure Boot Authentication | Hardware-rooted verification of signed firmware images ensures only authorized switch configuration and routing logic executes |
| Logical NT Interconnect | BAR-based address translation with sub-windows allows fine-grained memory sharing between partitions while maintaining isolation boundaries |
Applications
| Data Center NVMe Storage Fabric | 5G Radio Unit (RU) Baseband Aggregation |
|---|---|
Use Scenario: Front-end PCIe switch aggregating 32 NVMe SSDs behind dual x16 host CPUs in a disaggregated storage shelf. IC Role / Device Role / Timing Role: Fanout switch providing lane-splitting, partitioned QoS, and hot-plug-safe SSD replacement without CPU intervention. Use Value: 100-lane capacity eliminates external retimers; 26 partitions enforce tenant isolation; DPC prevents SSD link failure from disrupting host CPU PCIe root complex. | Use Scenario: Aggregating 8x O-RAN compliant fronthaul interfaces (eCPRI over PCIe) into a centralized baseband unit with deterministic latency. IC Role / Device Role / Timing Role: Low-latency PCIe Gen 5 interconnect enabling time-synchronized packet forwarding across RU blades. Use Value: Cut-through DMA reduces jitter below 50 ns; real-time eye capture validates optical cable compliance; NTB enables shared memory buffers between RU processors. |
| Defense-Avionics Multi-Function Display System | AI Accelerator Rack Interconnect |
Use Scenario: Ruggedized display subsystem integrating GPU, video encoder, and sensor I/O modules with independent safety partitions. IC Role / Device Role / Timing Role: High-reliability PCIe switch enforcing hardware-enforced domain separation and fault containment per DO-254 requirements. Use Value: ECC-protected RAMs prevent latent configuration corruption; 52 hot-plug controllers allow in-flight module replacement; CTS blocks incomplete transactions from stalling host. | Use Scenario: Interconnecting 16x AI accelerators (e.g., NVIDIA A100) to dual-socket Xeon host with unified memory addressing and failover redundancy. IC Role / Device Role / Timing Role: Scalable PCIe Gen 5 fabric supporting 1+1/N+1 failover, NTB-based accelerator memory pooling, and dynamic lane reassignment. Use Value: 48 NTBs enable cross-accelerator RDMA; 26 partitions isolate training workloads; surprise-plug tolerance permits live accelerator swap during model inference. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PCIe fanout switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PM51100B1-FEI | PSX variant with identical 100-lane/26-partition spec but enhanced SERDES equalization for longer backplane traces | Better suited for telecom metro/core routers with >20-inch FR4 trace lengths | Select PM51100B1-FEI when board-level signal integrity requires extended reach beyond standard PFX electrical specs |
| AMD Pensando DPU PDX-1000 | Integrated DPU with programmable packet processing; lacks native NTB support and has fixed 64-lane PCIe Gen 4 fabric | Targets software-defined networking offload rather than pure PCIe switching | Choose AMD Pensando only if workload requires inline packet inspection or TLS acceleration alongside switching |
Compared with PM51100B1-FEI, the PM50100B1-FEI offers optimized cost and power for mid-chassis server designs with shorter interconnects; versus AMD Pensando, it delivers higher lane count, Gen 5 speed, and hardware-enforced NTB isolation without software overhead.
Availability
PM50100B1-FEI is available at Aetrix Electronics and suitable for data center storage fabrics, 5G baseband units, defense avionics displays, and AI accelerator racks requiring stable component supply and long-term lifecycle assurance.
Supply support for PM50100B1-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 and long-life support.
The Switchtec PFX family targets high-availability PCIe infrastructure where deterministic latency, hardware-enforced partitioning, and field-upgradable firmware are critical for cloud, telecom, and defense systems.
FAQ
What PCIe generation and data rate does the PM50100B1-FEI support?
The PM50100B1-FEI supports PCIe Gen 5 with a data rate of 32 GT/s per lane. It implements full Gen 5 link training, equalization, and compliance-including support for passive, managed, and optical cables per SFF-8644/OCuLink standards. All 100 lanes operate natively at Gen 5 speed without fallback negotiation required.
How many virtual switch partitions does the PM50100B1-FEI support, and how are they enforced?
The PM50100B1-FEI supports 26 hardware-enforced virtual switch partitions. Each partition operates with independent configuration space, ACL-based access control, and isolated statistics counters. Partition boundaries are maintained at the hardware level via dedicated address translation units and cannot be overridden by software or firmware.
Does the PM50100B1-FEI include built-in error containment features for downstream ports?
Yes, the PM50100B1-FEI implements Downstream Port Containment (DPC) on all 52 downstream ports. DPC isolates errors such as malformed TLPs or link training failures within the affected port, preventing propagation to the upstream root complex or adjacent ports-ensuring system-level fault resilience.
What debug and diagnostics capabilities are integrated into the PM50100B1-FEI?
The PM50100B1-FEI includes real-time eye capture for SERDES validation, external loopback mode for PHY testing, and comprehensive counters for errors, TLP latency, and performance metrics. These are accessible via ChipLink GUI over in-band PCIe or sideband interfaces (UART, TWI, EJTAG).
Is the PM50100B1-FEI compatible with nontransparent bridging (NTB) configurations?
Yes, the PM50100B1-FEI supports up to 48 nontransparent bridges (NTBs), assignable to any port. NTB functionality includes BAR-based address translation with direct windows and multiple sub-windows per BAR-enabling secure, low-latency memory-mapped communication between isolated partitions or external systems.
PM50100B1-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:
- -
PM50100B1-FEI FAQ
1.How can I place an order for PM50100B1-FEI through Aetrix?
Please submit a Request for Quotation (RFQ) for PM50100B1-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 PM50100B1-FEI reliable?
The price and inventory of PM50100B1-FEI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PM50100B1-FEI is usually 5 days.
3.What payment methods are accepted for PM50100B1-FEI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PM50100B1-FEI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PM50100B1-FEI?
PM50100B1-FEI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PM50100B1-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 PM50100B1-FEI?
For technical support, including PM50100B1-FEI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PM50100B1-FEI requirements.
6.How does Aetrix verify that PM50100B1-FEI is sourced from the original manufacturer or authorized distributors?
All PM50100B1-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 PM50100B1-FEI meets industry standards.
7.What is the process for return or replacement of PM50100B1-FEI?
All PM50100B1-FEI units undergo pre-shipment inspection (PSI). If there is an issue with PM50100B1-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 PM50100B1-FEI part is unused and in its original packaging.
Return procedure for PM50100B1-FEI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PM50100B1-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…
