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3-port, 3-lane, SlimLine PCIe Packet Switch (Not Recommended for New Design)

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Not Recommended for New Design

Product Description

The PI7C9X20303SL is a 3-port/3-lane PCI Express® SlimLine™ Packet Switch specifically designed to meet the latest low-power, lead (Pb)-free and green system requirements. The PI7C9X20303SL is a cost-effective solution that can be implemented in systems such as motherboard, laptop, docking station, combo card, HBA, settop box, embedded system and other mobile or power-sensitive high performance platforms. The name of the family, SlimLine, refers to the proprietary power-saving technology.

The PI7C9X20303SL provides one upstream port and two x1 downstream ports. The PI7C9X20303SL provides users the flexibility to expand or fan-out from a wide range of I/O Bridges such as MCH, ICH, embedded MCU and other Application Specific ICs.

Industry Specifications Compliance

  • PCI Express® Base Specification, Revision 1.1
  • PCI Express CEM Specification, Revision 1.1
  • PCI-to-PCI Bridge Architecture Specification, Rev 1.2
  • Advanced Configuration Power Interface (ACPI) Specification


  • Non-blocking full-wired switching capability at 12 Gbps when all 3 lanes are enabled
  • Reliability, Availability and Serviceability
    • Supports Data Poisoning and End-to-End CRC
    • Advanced Error Reporting and Logging
    • IEEE 1149.6 JTAG interface support
  • Link Power Management
    • Supports L0, L0s, L1, L2, L2/L3Ready and L3 link power state
    • Active state power management for L0s and L1 state
    • Beacon or Wake# support in L2 state
  • Device State Power Management
    • Supports D0, D3Hot and D3Cold
    • 3.3V Aux Power support in D3Cold power state
  • Supports up to 256-byte maximum payload size
  • Power Dissipation: 0.4 W typical in normal mode, 0.25 W typical in standby mode
  • Industrial Temperature Range -40° to 85°
  • Package: 128-pin LQFP 14mm x 14mm
    • Pb free and 100% Green

Enhanced Features

  • Programmable Driver Current and De-Emphasis Level at each individual port
  • 150ns typical latency for packet running through switch without blocking
  • Supports “Cut-through”(Default) as well as “Store and Forward” mode for switching packets
  • Supports up to 256-byte maximum payload size
  • Advanced Power Savings
  • Empty downstream ports are set to idle
  • Clock to corresponding circuit is turned off when any port enters L1 or ASPM L1


  • Notebook internal PCIe® fan-out
  • PCIe Surveillance and Combo cards
  • PC MotherboardPCIe slot expansion
  • Wire/ Wireless Tele/ data communication
  • Embedded system
  • Set-top box and consumer devices
  • Industrial control

Product Specifications

Product Parameters

Ports 3
Lanes 3
Power 0.4 w
Latency 150 ns
Ambient or Junction Temperature (°C) -40 to 85

Technical Documents


Recommended Soldering Techniques


Additional Technical Documents are available upon request: 
Application information, Design tool model software, Design kits, Evaluation board, and Other technical documents

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Product Change Notices

PCN # Issue Date Implementation Date Subject
PCN-2466 2020-07-02 2020-10-02 Package Change and Additional Qualified Plating Source