PI7C9X2G404ELQZXAE

Overview

The PI7C9X2G404ELQZXAE is an automotive-grade PCI Express 2.1 packet switch featuring four downstream ports and four lanes, housed in a 136-pin aQFN package measuring 10mm x 10mm. It operates within a temperature range of -40°C to +85°C and complies with AEC-Q100 Grade 3 standards. The device supports one upstream port and up to three downstream ports, providing flexible expansion for various application-specific ICs. Typical latency is under 150ns, with power dissipation at 650mW in L0 mode and 200mW in L1 mode.

Feature Summary

• Integrated 100MHz clock buffer for each downstream port
• Supports Data Poisoning, End-to-End CRC, and Advanced Error Reporting
• Link and Device State Power Management including L0s, L1, L2, and D3 states
• Programmable driver current and de-emphasis levels per port

Applications

• Automotive Telematics and Infotainment
• In-vehicle Wireless AP/Router
• V2V System
• ADAS
• Vehicle Navigation

Procurement Notes

Verify the specific suffix configuration against official Diodes Incorporated documentation to ensure correct packaging and compliance status. Confirm that the component meets AEC-Q100 Grade 3 requirements for your target automotive environment. Cross-reference the datasheet for exact pinout and thermal characteristics before finalizing procurement specifications.

Selection Notes

Select this model when a four-port PCIe switch is required for automotive applications demanding high reliability and low power consumption. Ensure compatibility with upstream sources such as MCUs or FPGAs. Consider the 136-pin aQFN package constraints regarding PCB layout and thermal management during the design phase.

Part Context

This component belongs to the PI7C9X2G404xxQ family of automotive Gen2 PCIe switches. It shares core functionality with other variants like the PI7C9X2G404SLQ but differs in package type and pin count. The family is designed to provide cost-effective solutions for expanding PCIe connectivity in safety-critical vehicle systems.

Replacement Considerations

Direct replacements include other members of the PI7C9X2G404xxQ family, such as the PI7C9X2G404SLQ, provided the package difference between aQFN and LQFP is accommodated in the design.