PI7C9X2G312GPBNJE

Overview

The PI7C9X2G312GPBNJE is a PCI Express Gen 2 packet switch from the GreenPacket family, manufactured by Diodes Incorporated. It features three ports: one upstream and two downstream, supporting x4 lane operation per port for a total of 12 lanes. The device operates within an industrial temperature range of -40°C to +85°C and utilizes a 196-pin LBGA package measuring 15mm x 15mm. Typical power dissipation in L0 normal mode is 1.3 W, including the integrated clock buffer. The component supports a maximum payload size of 512 bytes and offers typical latency of 150ns for unblocked packets.

Feature Summary

• Supports peer-to-peer switching between downstream ports with Access Control Service (ACS) and Address Translation (AT) packet support for SR-IOV applications.
• Integrates advanced power management capabilities including Link Power Management states (L0, L0s, L1, L2), D0/D3 device power states, and programmable driver current/de-emphasis levels.
• Provides flexible traffic handling with Extended Virtual Channel capability, independent TC/VC mapping, Isochronous traffic support, and selectable Cut-through or Store-and-Forward switching modes.

Applications

• Network Attached Storage (NAS) and storage platforms
• Server infrastructure and Host Bus Adapters (HBA)
• Embedded systems and Industrial PC (IPC) control
• Wired/Wireless networking equipment such as APs and routers

Procurement Notes

Verify the specific ordering suffix to confirm packaging configuration. The 'X' suffix indicates Tape and Reel packaging, while other suffixes may denote Tray packaging. Confirm the temperature grade corresponds to the required industrial range of -40°C to +85°C. Ensure the pinout matches the 196-pin LBGA footprint dimensions of 15mm x 15mm during PCB layout verification.

Selection Notes

Select this component when a compact 3-port PCIe Gen 2 solution is required for fan-out or expansion applications. It is suitable for designs needing peer-to-peer communication between endpoints without upstream intervention. Consider the 1.3 W typical power dissipation for thermal management planning. Verify compatibility with system SoCs supporting x4 PCIe links for both upstream and downstream connections.

Part Context

This part belongs to the PI7C9X2G GreenPacket family of PCI Express switches. It is designed to meet low-power and lead-free system requirements for embedded, storage, and networking platforms. The device integrates proprietary power-saving technologies and complies with PCI Express Base Specification Revision 2.1 and CEM Specification Revision 2.0 standards.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate alternative 3-port PCIe Gen 2 switches from the same manufacturer family if pin-compatible replacements are required. Verify functional equivalence regarding virtual channel support and power management states before substitution.