PI7C9X2G404ELQZXAEX

Overview

The PI7C9X2G404ELQZXAEX is an automotive-compliant PCI Express 2.1 packet switch from the PI7C9X2G404xxQ family, designed for AEC-Q100 Grade 3 qualification. It features four ports and four lanes, supporting one x1 or x2 upstream port and three x1 downstream ports. The device operates within a temperature range of -40°C to +85°C and utilizes a 136-pin aQFN package measuring 10mm x 10mm. Typical latency is less than 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 D3Cold states
• Programmable driver current and de-emphasis levels at individual ports

Applications

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

Procurement Notes

Verify the component matches the specific automotive grade requirements and package dimensions before integration. Confirm that the ordering suffix indicates tape and reel packaging if required by automated assembly lines. Ensure compatibility with the system's PCIe endpoint devices and bridge controllers.

Selection Notes

Select this model when a four-port PCIe 2.1 switch is needed for automotive applications requiring AEC-Q100 Grade 3 compliance. Compare against the PI7C9X2G304ELQZXAEX if only three downstream ports are sufficient. Consider the LQFP package variant if surface area constraints differ from the aQFN footprint.

Part Context

This part belongs to the PI7C9X2G404xxQ family, which includes variants with different port counts and packages. The ELQ suffix denotes the 136-pin aQFN package, while SLQ denotes the 128-pin LQFP package. The ZXAEX suffix specifically indicates tape and reel packaging for high-volume manufacturing.

Replacement Considerations

PI7C9X2G404SLQFDEX offers the same electrical specifications but uses a 128-pin LQFP package instead of the aQFN form factor.