Product Description

The PI7C9X2G304EL is a PCI Express® 2.0 3-port/4-lane PCI Express ExtremeLo Packet Switch specifically designed to meet the latest low-power, lead (Pb)-free and green system requirements.
The PI7C9X2G304EL is a high-performance, cost-effective solution that can be implemented in systems such as Embedded system, Wi-Fi router/ gateway, printer, storage, combo card, HBA, set-top box,  motherboard, laptop, docking station, and other power-sensitive high performance platforms. The name of the family, ExtremeLo, refers to the proprietary power-saving PowerSave™ technology. 
The PI7C9X2G304EL provides one x1 or x2 upstream port and two x1 downstream ports. The PI7C9X2G304EL provides users the flexibility to expand or fan-out from a wide range of I/O Bridges such as PCH, ICH, IOH, embedded MCU, FPGA, and other Application Specific ICs.

Industry Specifications Compliance

• PCI Express® Base Specification, Revision 2.1
• PCI Express CEM Specification, Revision 2.0
• PCI-to-PCI Bridge Architecture Spec., Rev 1.2
• Advanced Configuration Power Interface (ACPI) Specification

Features

• PCISIG PCI Express 2.1 certificated
• Integrated 100MHz Clock buffer for each downstream port
• Reliability, Availability and Serviceability
  • Supports Data Poisoning and End-to-End CRC
  • Advanced Error Reporting and Logging o IEEE 1149.1 JTAG interface support
• Link Power Management
  • Supports L0, L0s, L1, L2, L2/L3_Ready and L3 link power state
  • Active state power management for L0s and L1 state 
• Device State Power Management
  • Supports D0, D3_Hot and D3_Cold
  • 3.3V Aux Power support in D3_Cold power state
• Supports up to 512-byte maximum payload size
• Power Dissipation: 0.65 W typical in L0 normal mode Industrial Temperature Range: -40° to 85°C
• MTBF: 50,927,360 hours
• Package: 136-pin aQFN 10mm x 10mm
  • 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
• 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
  • Supports Access Control Service (ACS) for peer-to- peer traffic
  • Supports Address Translation (AT) packet for SR-IOV application
  • Supports Latency Tolerance Reporting (LTR) to improve Platform Power Management
  • Supports Optimized Buffer Flush Fill (OBFF) to improve Platform Power Management

Applications

• Wireless AP/ Router
• Wire/ Wireless Tele/ data communication
• Embedded system
• Set-top box and consumer devices
• Industrial control
• NAS/ Storage
• Printer/ MFP
• Peripheral
• PCIe Surveillance and Combo cards
• Notebook internal PCIe fan-out
• PC Motherboard PCIe slot expansion