PI7C9X2G404SLBFDE - 4-Port PCIe 2.0 Switch | Diodes
MPN: PI7C9X2G404SLBFDE ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $9.81 | $9.81 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
PI7C9X2G404SLBFDE Overview
A PCI Express packet switch is a semiconductor device that manages traffic between PCIe endpoints and a host or upstream port. It belongs to the packet-switch, interface-IC, and semiconductor hierarchies, using serialized high-speed lanes to distribute PCIe traffic among downstream devices. A four-port, four-lane configuration is useful when a system must consolidate storage, networking, graphics, or add-in-card connections behind a PCIe interface.
The available data confirms four downstream ports, four lanes, PCIe 2.0 classification, two channels, a 128-pin LQFP package, and an exposed thermal pad. The package is identified as 14 x 14 mm by distributor data. The manufacturer description identifies embedded systems, Wi-Fi routers or gateways, printers, storage, combo cards, HBAs, and set-top systems as possible use cases.
The switch is intended to provide a compact PCIe connectivity solution while keeping system power and board area under control. Its exact lane data rate, auxiliary voltage, operating temperature, reference-clock requirements, lane impedance, and electrical timing are not stated in the verified data, so those parameters remain explicitly unresolved rather than being inferred.
PI7C9X2G404SLBFDE is suitable for board designs that require a PCIe switching function and a 128-pin LQFP land pattern. Design work should preserve the exposed-pad thermal and electrical requirements, validate the complete PCIe signal-integrity stack-up, and confirm pin-level functions against the manufacturer datasheet before layout release.
This page consolidates verified distributor specifications, manufacturer product positioning, commercial availability information, and carefully qualified replacement findings. Because the provided evidence does not establish enough distinct pin-compatible devices, the alternatives section avoids padding the list with unsupported equivalents.
For pricing, LCSC showed a starting price of $9.8100 and in-stock status in the retrieved results, while Mouser, DigiKey, Arrow, and other distributors provided listing or datasheet references. Pricing and availability should be reconfirmed at the time of purchase.
Drop-in alternatives for PI7C9X2G404SLBFDE — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PI7C9X2G404SLBFDE (same form factor and footprint) — differing in Package, Function, PCI Bus Speed, Product Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PI7C9X2G404SLBFDEX
✅ Drop-In📋 Reference alternative (not in catalog)
PI7C9X2G404SLAFDE
✅ Drop-In📋 Reference alternative (not in catalog)
PI7C9X2G404SLAFDEX
✅ Drop-In📋 Reference alternative (not in catalog)
PI7C9X20404SLCFDEX
✅ Drop-In📋 Reference alternative (not in catalog)
PI7C9X2G404SLBFDE Maximum Ratings & Electrical Characteristics
| Product Type | PCI Express packet switch |
| PCI Express Generation | PCIe 2.0 |
| Port Count | 4 ports |
| Lane Count | 4 lanes |
| Channel Count | 2 channels |
| Package | 128-pin LQFP |
| Package Dimensions | 14 x 14 mm |
| Exposed Pad | Exposed pad |
| Mounting Type | Surface mount |
| Lead-Free Status | Low-power, lead-free and green system design |
| Datasheet File Size | 295 KB |
| Datasheet Publication Date | 2014-11-12 |
PI7C9X2G404SLBFDE 14 x 14 mm Pin Configuration Guide
Pin configuration for PI7C9X2G404SLBFDE (14 x 14 mm package). This power device features gate, drain, and source terminals. For non-polarized packages, refer to the manufacturer datasheet for exact pin 1 orientation and footprint details. Common applications include power supply design, motor driving, and load switching.
No detailed pinout data available for PI7C9X2G404SLBFDE.
Refer to the datasheet for full pin configuration.
Typical Applications
PI7C9X2G404SLBFDE is suitable for 6 applications: Embedded PCIe Systems, Wi-Fi Router and Gateway, PCIe Storage Systems, Printer and Multifunction Systems, Host Bus Adapter Systems, Combo Card and Add-in Systems.
Embedded PCIe Systems
The PI7C9X2G404SLBFDE fits embedded systems that need to consolidate several PCIe devices behind a four-port, four-lane switching fabric. The manufacturer specifically identifies embedded systems as an application for the PI7C9X2G404SL family. Its 128-pin LQFP package provides a defined board footprint, while the exposed pad supports thermal design and power-plane integration. The engineer must still validate PCIe lane rates, reference-clock requirements, auxiliary power, and endpoint compatibility from the complete datasheet. This is a connectivity solution, not a substitute for endpoint power regulation or protocol-specific validation.
Recommended
Wi-Fi Router and Gateway
For Wi-Fi routers and gateways, the PI7C9X2G404SLBFDE can provide a shared PCIe fan-out point for compatible wireless, storage, or service devices. Its four ports and four lanes provide a defined PCI Express 2.0 topology for systems that need more than one downstream endpoint. The manufacturer lists Wi-Fi routers and gateways among the family's intended applications. Layout planning should account for the 128-pin LQFP land pattern, exposed-pad connection, reference clock distribution, and clean PCIe return paths. Exact power, lane-rate, and enable sequencing values are not in the supplied data.
Recommended
PCIe Storage Systems
PI7C9X2G404SLBFDE is appropriate as a packet-switch element in a storage-oriented system that needs multiple PCIe paths behind a host controller. The four-port, four-lane configuration can help organize compatible storage endpoints while keeping the implementation within a single switch IC package. The manufacturer lists storage as a target system, and the product is identified as a PCI Express 2.0 switch. Confirm whether the storage devices use the required PCIe generation, lane width, clocking, and power states. Because throughput and power values are unavailable in the verified source set, thermal and signal-integrity validation remains necessary.
Recommended
Printer and Multifunction Systems
The PI7C9X2G404SLBFDE can serve as a PCIe routing device in printers, multifunction systems, and other embedded peripherals that need several internal high-speed connections. The four-lane switch architecture is intended to distribute compatible PCIe traffic without requiring four independent host controllers. The manufacturer lists printers among the family's target applications. The implementation must account for the LQFP exposed pad, local decoupling, PCIe trace impedance, and power-management sequencing. The supplied evidence does not specify the device's operating temperature or power limits, so those ratings must be confirmed before production release.
Recommended
Host Bus Adapter Systems
PI7C9X2G404SLBFDE is suitable for a host bus adapter architecture where one upstream PCIe connection must serve multiple downstream adapters. The four-port, four-lane packet switch gives the system designer a defined topology for compatible PCIe endpoints such as storage, networking, or add-in functions. The manufacturer lists HBAs and combo cards among the PI7C9X2G404SL family's possible applications. For an HBA, use controlled-length PCIe routes, continuous reference planes, and an exposed-pad thermal design. Confirm host and endpoint capabilities against the manufacturer datasheet because the retrieved data does not state maximum data rate or lane impedance.
Recommended
Combo Card and Add-in Systems
The PI7C9X2G404SLBFDE can be evaluated for combo-card and add-in systems that need multiple PCIe connections within a compact embedded design. The four-port, four-lane arrangement is consistent with a switch-based fan-out architecture, while the 128-pin LQFP package supports conventional surface-mount assembly. The manufacturer names combo cards as an intended application for the family. Before layout approval, verify the exact pinout, exposed-pad connection, PCIe reference-clock architecture, and auxiliary-power sequencing. These details are not reproduced in the supplied snippets and should be taken directly from the current Diodes documentation.
Recommended
Recommended Products Summary
Engineering reference data for PI7C9X2G404SLBFDE — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PI7C9X2G404SLBFDEX | PI7C9X2G404SLAFDE | PI7C9X2G404SLAFDEX | PI7C9X20404SLCFDEX |
|---|---|---|---|---|---|
| Brand | Diodes Incorporated | Diodes Incorporated | Diodes Incorporated | Diodes Incorporated | Diodes Incorporated |
Key Differentiators
- Four-port, four-lane PCIe 2.0 packet-switch topology (vs PI7C9X2G404SLBFDEX)
- Documented 128-pin LQFP exposed-pad package (vs PI7C9X2G404SLAFDE)
- Manufacturer positioning for embedded and communications systems (vs PI7C9X2G404SLAFDEX)
Design Notes
Use the 128-pin LQFP footprint and exposed-pad land pattern from the manufacturer mechanical drawing rather than inferring the pad connection from distributor text. Keep PCIe traces short, preserve continuous reference planes, and match the documented impedance target. Confirm pin assignments and exposed-pad electrical requirements before routing because those details were not included in the retrieved data.
The exposed pad is a thermal and electrical design feature, not an optional cosmetic feature. Provide a low-impedance connection to the intended power or ground plane as specified by the datasheet, use adequate via arrays, and estimate junction temperature from actual board copper, airflow, and neighboring heat sources. The supplied data does not provide thermal resistance or maximum power, so no numerical thermal claim is made here.
Validate the complete PCIe channel with controlled-impedance routing, continuous return paths, appropriate via transitions, and compliant power sequencing. Confirm the device's reference-clock, auxiliary-power, reset, lane-polarity, and enable requirements from the current manufacturer documentation. The verified source set confirms the four-port, four-lane PCIe 2.0 topology but does not provide the timing, impedance, or clock specifications needed for a final SI budget.
Do not select a replacement based only on the 4-port, 4-lane description or a similar family name. Check package dimensions, exposed-pad connection, power rails, reference clock, lane assignment, reset behavior, and lifecycle status for each candidate. PI7C9X2G404SLBFDEX and the related SLA variants are comparison leads, not automatically guaranteed drop-in parts, until their datasheets prove pin-to-pin and parameter compatibility.
Compliance Information
The manufacturer describes PI7C9X2G404SL as designed for low-power, lead-free, and green-system requirements. Explicit RoHS, REACH, AEC-Q100, halogen-free, and conflict-minerals declarations were not present in the supplied data.
