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Microchip Technology PCI11101-I/MXX
- Part No.:
- PCI11101-I/MXX
- Manufacturer:
- Microchip Technology
- Category:
- Specialized ICs
- Package:
- 132-VFQFN Dual Rows, Exposed Pad
- Description:
- IC ANALOG SWITCHES 132DRQFN
- Quantity:
Unit Price:$0
Ext Price:$0
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Product Details
PCI11101-I/MXX - PCIe Switch with USB 3.2 Gen 2 Host
PCI11101-I/MXX from Microchip Technology integrates a PCIe switch, one USB 3.2 Gen 2 xHCI host port, and programmable I/O for embedded connectivity. The industrial-temperature order code is supplied in a 132-pin dual-row DRQFN package; LCDChip's catalog describes the package as 132-VFQFN Dual Rows, Exposed Pad.
Technical functions and exact ordering suffix are checked against Microchip's PCI11101 product brief and hardware-design checklist. Confirm current controlled data-sheet limits and the MXX land pattern before design release.
Overview
The PCI11101 combines a four-lane upstream PCIe interface and a two-lane downstream PCIe interface with an integrated USB 3.2 Gen 2 host controller. The USB host provides one 10 Gbps downstream port and uses an xHCI programming model. A configurable pin multiplexer maps selected peripheral functions, including GPIO, SMBus, SPI, and UART, to package pins.
Key Advantages
PCIe switching and a USB 3.2 Gen 2 host reside in one IC for compact embedded subsystems.
The four-lane upstream port can be architected across a single or multiple lanes as supported by the device configuration.
Pin multiplexing supports application-specific I/O such as GPIO, SMBus, SPI, and UART.
The exact -I/MXX code denotes the -40°C to +85°C industrial option in Microchip's ordering table.
Feature Summary
Integrated PCIe physical ports, switch fabric, and endpoint controllers; maximum stated line rate is 8 GT/s.
One USB-IF/xHCI-compliant USB 3.2 Gen 2 host port with overcurrent-sense and VBUS port-control functions.
Internal clock generation uses an external 25 MHz crystal or single-ended clock plus the PCIe reference clock.
Peripheral signals are assigned through a programmable pin multiplexer; actual pin use depends on configuration.
Package & Footprint
LCDChip's original package entry is 132-VFQFN Dual Rows, Exposed Pad, with the registered display name 132-VFQFN Dual Rows. Microchip's exact MXX ordering code specifies a 132-pin DRQFN dual-row, exposed-pad package with an 11 mm × 11 mm body. The catalog wording and manufacturer's DRQFN nomenclature require mechanical-drawing comparison; a generic QFN image is not a footprint authority.
- Use Microchip's MXX 132-pin DRQFN package drawing and recommended land pattern.
- Confirm pin-1 orientation, dual-row pad pitch, exposed-pad grounding, and thermal-via pattern.
- Route PCIe and USB differential pairs to their specified impedance and length-matching constraints.
The registered JPG is absent locally and returns HTTP 404 on the production site. Add an accurate image and verify the actual package before publication.
Pin Functions
These selected signal assignments come from Microchip's PCI11101 hardware-design checklist; consult the full controlled pin map for all 132 terminals and multiplexed functions.
Positive and negative USB 2.0 downstream-port data lines.
USB 3.2 host transmit pair; the checklist calls for series DC-blocking capacitors.
USB 3.2 host receive differential pair.
25 MHz crystal or external-clock input; leave XTALO unconnected when using a single-ended oscillator as directed by Microchip.
Upstream and downstream PCIe lane pairs and reference clock require controlled high-speed routing; verify exact pins in the current pin table.
GPIO and serial functions are selected by the device pin-multiplexer configuration, not merely by a fixed package-label assumption.
The selected USB and clock pin numbers are not a substitute for full schematic and layout review.
Key Specifications
| Primary function | PCIe switch with integrated USB 3.2 Gen 2 host and programmable I/O |
|---|---|
| Upstream PCIe port | Four lanes, up to 8 GT/s line rate per lane |
| Downstream PCIe port | Two lanes, up to 8 GT/s line rate per lane |
| USB host ports | One USB 3.2 Gen 2 downstream host port |
| USB Gen 2 signaling | 10 Gbps nominal signaling class |
| USB controller model | xHCI-compliant host controller |
| External device clock | 25 MHz crystal or single-ended clock, with PCIe reference clock also required |
| Programmable I/O examples | GPIO, SMBus, SPI, UART |
| Exact package | 132-pin MXX DRQFN, 11 mm × 11 mm body |
| Exact-code temperature range | -40°C to +85°C for -I option |
| Standard package form | Tray for PCI11101-I/MXX; T variant denotes tape and reel |
| USB support signals | Overcurrent sense and VBUS port control |
Rates and architecture are taken from Microchip's PCI11101 brief. Use the controlled full data sheet for electrical limits, power sequencing, and compliance review.
Replacement Considerations
No drop-in substitute is asserted. Evaluate any candidate against PCIe topology and lane configuration, USB host count and speed, xHCI software interface, programmable-I/O mapping, clock and supply requirements, industrial-temperature rating, and the 132-pin dual-row land pattern. A PCI11101C or PCI11414-family device must not be assumed pin- or firmware-compatible merely because of family naming. No unverified LCDChip internal link is included.
Manufacturer Information
Microchip Technology lists PCI11101 as an in-production PCIe peripheral. Its PCI11101 product brief identifies PCI11101-I/MXX specifically as the tray-packaged industrial-temperature 132-pin DRQFN option. The hardware-design checklist supplies selected USB and clock pin functions. Consult current Microchip data-sheet revision and errata for final design decisions.
Applications
Consolidate PCIe switching and peripheral connectivity in space-constrained embedded systems.
Add a high-speed USB host connection to an appropriate PCIe subsystem.
Map GPIO and serial functions to support board-specific controls and management interfaces.
Quality & Authenticity
Confirm the full PCI11101-I/MXX order code, industrial-temperature designation, tray packaging, package marking, traceability, and current Microchip qualification documents. Compare the received dual-row exposed-pad package against the approved MXX footprint before assembly.
FAQ
How many USB host ports are integrated?
Microchip specifies one USB 3.2 Gen 2 host downstream port for PCI11101.
What does -I/MXX mean?
The exact ordering entry denotes the industrial -40°C to +85°C option in a 132-pin MXX DRQFN package, supplied in trays.
Is the catalog VFQFN name sufficient for PCB layout?
No. Check Microchip's controlled 132-pin DRQFN drawing and land pattern, especially the dual rows and exposed pad.
Engineering Notice
Before release, verify PCIe link architecture, USB Gen 2 signal integrity and protection, reference clocks, pin-multiplexer settings, firmware and driver support, power sequencing, industrial-temperature conditions, and the exact MXX land pattern. The package-name difference and missing production JPG require review before publication.
PCI11101-I/MXX Information
- Specifications
- Tags
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 132-VFQFN Dual Rows, Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Type:
- Analog Switches
- Applications:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 132-DRQFN (11x11)
- Grade:
- -
- Qualification:
- -
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