PI7C9X3G1224GPBHFCE - PCIe Gen3 24-Lane Packet Switch | Diodes Inc.
N.º de pieza: PI7C9X3G1224GPBHFCE ✓ Activo| Cant. | Precio unitario | Total |
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| 1 | $0 | $0,00 |
| 10 | $0 | $0,00 |
| 100 | $0 | $0,00 |
| 500 | $0 | $0,00 |
| 1.000 | $0 | $0,00 |
PI7C9X3G1224GPBHFCE Descripción general
A PCIe packet switch is a bridge device in the PCI Express hierarchy that sits between a root complex and multiple endpoints, expanding a single upstream root port into several downstream switch ports. In the system hierarchy, a packet switch is a key element of the PCIe interconnect family: root complex, switch, and endpoint. Switches route Transaction Layer Packets (TLPs) between ports, enabling lane expansion, peer-to-peer DMA, and host connection of multiple NVMe SSDs, NICs, or GPU devices beyond the root complex's native lane count.
Key features include support for 24 lanes of PCIe 3.0 SERDES at 8 GT/s, flexible port configuration from 3 to 12 ports, and a tile-based switching architecture in which each tile consists of 8 ports and 16 lanes (Tile 0) with additional tiles providing the remaining ports. The flexible lane allocation allows designers to size each downstream port to the endpoint it serves, for example x4 links to NVMe devices and x2 links to lower-bandwidth peripherals.
Technically, the architecture allows flexible port configuration by allocating variable lane width for each port, as described on the official Diodes Incorporated product page. The switch handles store-and-forward cut-through packet routing, link training to Gen3 rates, and standard PCIe power management, supporting designs that must comply with the PCI Express Base Specification for Gen3 operation.
Typical applications include NVMe SSD storage enclosures and JBOD controllers, server and workstation expansion backplanes, industrial and networking fan-out systems, and any design where a host with limited lanes must drive multiple high-bandwidth endpoints with peer-to-peer traffic isolation.
A key design consideration is SERDES signal integrity: at 8 GT/s, the 19x19 mm H-FCBGA package demands careful PCB stackup and reference-plane discipline; high-speed diff pairs should be length-matched and routed over continuous ground planes with controlled impedance.
This page synthesizes distributor availability data, drop-in alternative strategy, and practical design notes not consolidated in the manufacturer datasheet, with pricing references as of 2026-10-19.
Alternativas directas para PI7C9X3G1224GPBHFCE — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con PI7C9X3G1224GPBHFCE (mismo factor de forma y huella) — difiere en Architecture, Interface Standard, Package, Packaging, SERDES Data Rate.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
PI7C9X3G1224GPBHFBE
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
PI7C9X3G1224GP
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
PI7C9X3G1224GPBHFCG
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
PI7C9X3G1224GPBHFCE Valores máximos y características eléctricas
| Interface Standard | PCI Express Gen3 (PCIe 3.0) |
| Función | Packet Switch |
| Number of Ports | 3 to 12 (flexible configuration) |
| Number of Lanes | 24 |
| Architecture | Tile-based switching fabric |
| SERDES Data Rate | 8 GT/s (Gen3) |
| Encapsulado | 324-HFCBGA (19x19 mm) |
| Tipo de montaje | Surface Mount |
| Packaging | Tray, 84 pcs per tray |
| Lane Width per Port | Variable (allocated per port) |
| Supported Topologies | Fan-out and aggregation (port bifurcation) |
Guía de configuración de pines de PI7C9X3G1224GPBHFCE 324-hfcbga (19x19 mm)
Configuración de pines para PI7C9X3G1224GPBHFCE (encapsulado 324-hfcbga (19x19 mm)). Este dispositivo de potencia presenta terminales de puerta, drenador y fuente. Para encapsulados no polarizados, consulte la hoja de datos del fabricante para conocer la orientación exacta del pin 1 y los detalles del footprint. Las aplicaciones habituales incluyen el diseño de fuentes de alimentación, el accionamiento de motores y la conmutación de cargas.
No hay datos detallados de patillaje disponibles para PI7C9X3G1224GPBHFCE.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
PI7C9X3G1224GPBHFCE es adecuado para 6 aplicacións: NVMe SSD Storage Expansion, Server and Workstation Backplanes, Networking and Communication Fan-Out, Industrial and Embedded Expansion, GPU and Accelerator Aggregation, Storage JBOD and Enclosure Controllers.
NVMe SSD Storage Expansion
The PI7C9X3G1224GPBHFCE fits NVMe storage fan-out perfectly: its 24 PCIe Gen3 lanes at 8 GT/s can be split into six x4 downstream ports, each directly serving one NVMe M.2 or U.2 SSD at roughly 4 GB/s per port. The tile-based switch fabric enables peer-to-peer transfers between SSDs without host CPU involvement, improving RAID and cache-tiering performance. Because lane width is allocated per port, mixed SSD generations with x4, x2, or x1 links coexist on one switch. Place the switch on short, length-matched traces to the SSD connectors and follow the datasheet reference-clock tree to meet Gen3 eye diagrams across all six ports.
Recomendado
Server and Workstation Backplanes
In server and workstation backplanes, the PI7C9X3G1224GPBHFCE expands a single host root-port link into multiple slot links, with 24 Gen3 lanes supporting six x4 slots or a mix of x4/x2/x1 widths allocated per port. The 8 GT/s SERDES rate delivers about 1 GB/s per lane, enough for add-in cards such as NICs, HBAs, and accelerators. The 19x19 mm 324-ball HFCBGA concentrates all SERDES pairs in one footprint, minimizing backplane routing length. Designers should maintain continuous ground reference under slot diff pairs and implement the standard PCIe reset and power-good sequencing across downstream slots as described in the PI7C9X3G1224GP datasheet.
Recomendado
Networking and Communication Fan-Out
Networking line cards and aggregation appliances use the PI7C9X3G1224GPBHFCE to connect multiple MAC, FPGA, or accelerator endpoints to a host CPU. The flexible 3-port to 12-port configuration matches topologies with one upstream x4/x8 link and several narrow downstream links, and variable lane-width allocation avoids wasting SERDES resources on low-bandwidth management devices. Gen3 8 GT/s operation provides deterministic latency through the tile-based fabric for peer-to-peer traffic between ports. In these designs, verify the reference clock topology (common clock or SRIS) against datasheet recommendations and budget insertion loss for backplane-scale traces at 8 GT/s.
Recomendado
Industrial and Embedded Expansion
Industrial controllers and embedded systems benefit from the PI7C9X3G1224GPBHFCE when an embedded CPU with a single PCIe root port must drive multiple frame grabbers, motion-control cards, or FPGA coprocessors. The switch presents a standard PCIe hierarchy, so unmodified drivers enumerate downstream endpoints transparently. Its 24-lane Gen3 fabric offers roughly four times the bandwidth of Gen1 switching at the same lane count, supporting machine-vision and real-time control data streams. Industrial designs should review the datasheet power-management features for low-idle modes and validate operation across the specified temperature envelope before committing the 324-ball HFCBGA to a conformally coated board.
Recomendado
GPU and Accelerator Aggregation
The PI7C9X3G1224GPBHFCE aggregates GPU or AI-accelerator endpoints behind a host link, using its 24 Gen3 lanes as three x8 downstream ports or six x4 ports depending on accelerator form factor. The tile-based fabric supports peer-to-peer DMA between accelerators, a key pattern for distributed inference pipelines that exchange tensors directly. Gen3 8 GT/s yields about 8 GB/s per x8 link, adequate for many accelerator families although not for full Gen4-class throughput. Route each accelerator pair over controlled-impedance 100-ohm diff pairs and consult the PI7C9X3G1224GP datasheet application section for equalization and receiver-detection settings at these link widths.
Recomendado
Storage JBOD and Enclosure Controllers
JBOD and storage-enclosure controllers use the PI7C9X3G1224GPBHFCE to fan a SAS/SATA-adapter or NVMe-bridge upstream link out to multiple drive slots. With 24 Gen3 lanes configured as six x4 ports, the switch directly hosts six NVMe drive positions, and per-port lane-width allocation accommodates SATA-over-PCIe bridge devices running narrower links. Peer-to-peer capability lets drives communicate with the bridge chip without host mediation, reducing latency in caching tiers. Enclosure designs should allocate switch placement centrally among drive backplane connectors to keep 8 GT/s trace lengths balanced, and follow datasheet guidance on hot-plug reset and surprise-removal handling.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para PI7C9X3G1224GPBHFCE — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | PI7C9X3G1224GPBHFBE | PI7C9X3G1224GP | PI7C9X3G1224GPBHFCG |
|---|---|---|---|---|
| Package | 324-HFCBGA (19x19 mm) | 324-HFCBGA (19x19 mm) - same | 324-HFCBGA (19x19 mm) - same | 324-HFCBGA (19x19 mm) - same |
| Brand | Diodes Incorporated | Diodes Incorporated | Diodes Incorporated | Diodes Incorporated |
| PCIe Generation | Gen3 (8 GT/s) | Gen3 (8 GT/s) | Gen3 (8 GT/s) | Gen3 (8 GT/s) |
| Lanes | 24 | 24 | 24 | 24 |
| Ports | 3 to 12 (flexible) | 3 to 12 (flexible) | 3 to 12 (flexible) | 3 to 12 (flexible) |
| Architecture | Tile-based (Tile 0: 8 ports / 16 lanes) | Tile-based (identical die) | Tile-based (identical die) | Tile-based (identical die) |
Diferenciadores clave
- Flexible port-to-lane allocation (frente a PI7C9X3G1224GP (base ordering code))
- High lane density per footprint (frente a Broader-market 24-lane Gen3 switches (cross-brand))
- Authorized distributor availability (frente a PI7C9X3G1224GPBHFCG / PI7C9X3G1224GPBHFBE suffix variants)
Notas de diseño
Route all 24 Gen3 SERDES pairs as 100-ohm differential pairs with a continuous reference plane; avoid plane splits under high-speed traces. Keep intra-pair skew minimal and length-match pairs within a group per the PI7C9X3G1224GP datasheet layout guidelines. At 8 GT/s, insertion-loss budget matters: pre-layout simulation of the longest backplane-scale links is strongly recommended, and AC-coupling capacitors should be placed per the datasheet recommendation near the transmitter side.
The 19x19 mm 324-ball HFCBGA requires an exact land pattern and controlled escape routing; via-in-pad or doghouse fanout keeps inner ball rows routable on a 6-8 layer stack. Provide a solid, low-inductance ground ball field and follow the datasheet power-plane recommendations for the core and IO rails. Do not omit the reference-clock termination and decoupling specified in the PI7C9X3G1224GP application section - reference jitter directly affects Gen3 eye margin.
Confirm the exact ordering-code suffix before PCB release: the PI7C9X3G1224GP family uses suffix qualifiers for package finish, packing (tray 84 pcs vs reel), and temperature options, and mixing suffixes can change the delivered packing format. Also verify power-up sequencing of the switch rails against the datasheet before first bring-up, and validate the downstream reset (PERST#) distribution so all switch ports train correctly during host enumeration.
Información de cumplimiento
Compliance status not stated in the captured distributor snippets. Diodes Incorporated product pages typically publish RoHS/REACH status per ordering code - verify on the official diodes.com PI7C9X3G1224GP product page.
