PI7C9X3G1632GPQ3HFCE

Overview

The PI7C9X3G1632GPQ3HFCE is an automotive-grade PCI Express 3.0 packet switch manufactured by Diodes Incorporated. It provides 16 ports and 32 lanes, supporting up to 15 endpoints and multi-host applications with failover capabilities. The device operates within a temperature range of -40°C to +85°C and utilizes a 676-pin HFCBGA package measuring 27mm x 27mm. It consumes 5.6W of power and achieves a typical packet forwarding latency of less than 150ns. The component complies with AEC-Q100 Grade 3 standards.

Feature Summary

• Supports elastic bifurcation for upstream and downstream ports to accommodate flexible lane configurations.
• Features adaptive equalization including RX DFE and TX feed-forward equalizers to maintain signal integrity over channels exceeding 30dB loss.
• Includes integrated PCIe Gen3 clock buffers supporting common, SRNS, and SRIS reference structures.
• Provides advanced reliability features such as end-to-end data protection with ECC and support for surprise hot removal.

Applications

• Zonal Central Controllers
• Advanced Driver Assistance Systems (ADAS)
• Telematics units
• In-vehicle communication networks

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm packaging type and moisture sensitivity level. Confirm that the Q3 designation aligns with current automotive qualification requirements before finalizing procurement orders.

Selection Notes

Select this model when designing systems requiring high port density with 16 ports and 32 lanes. Ensure the application environment falls within the specified -40°C to +85°C operating temperature range. Verify that the 676-pin HFCBGA package dimensions fit the target PCB layout constraints.

Part Context

This component belongs to the Automotive PCIe 3.0 Packet Switch family from Diodes Incorporated. Other members include the PI7C9X3G606GPQ, PI7C9X3G808GPQ, and PI7C9X3G816GPQ, which offer varying port and lane counts for different performance tiers.

Replacement Considerations

PI7C9X3G816GPQ3HFCE serves as a lower-lane alternative within the same product family.

FAQ

What is the maximum channel loss supported by this switch?

The device supports long PCIe trace lengths with loss greater than 30 dB through its enhanced analog front end and equalization features.

How many DMA channels are available for host-to-host communication?

The switch supports up to 8 physical or 16 virtual DMA channels to facilitate efficient data movement among hosts and endpoints.

Does the device support multi-host configurations?

Yes, it supports up to 3 Cross-Domain End-Point (CDEP) ports for host-to-host communications and fail-over applications.