LAN9383-I/6XX

Controllers Overview

The LAN9383-I/6XX is a Grade 2 automotive, 7-port AVB/TSN Gigabit Ethernet switch with an integrated CPU subsystem. It features five 100BASE-T1 PHYs, one SGMII port, and one RGMII/RMII/MII port. The device includes a 300MHz ARM Cortex-M7 CPU, 2MB flash memory, and a hardware security engine. Operating at -40°C to +105°C, it supports IEEE 1588v2 PTP, OPEN Alliance TC10 sleep/wakeup, and LinkMD+ diagnostics in a 128-pin TQFP package.

Controllers Feature Summary

• Integrated 300MHz ARM Cortex-M7 CPU subsystem with 2MB flash and 768KB RAM
• Hardware security engine supporting SHA-256/512, ECDSA, and AES encryption
• Full AVB and TSN support including IEEE 1588v2 PTP and frame replication
• OPEN Alliance TC10 sleep/wakeup and EtherGREEN energy efficiency

Controllers Applications

• Advanced Driver-Assistance Systems (ADAS)
• In-Vehicle Backbone and Gateways
• Infotainment and Telematics systems

Controllers Procurement Notes

Verify the specific suffix against official Microchip documentation to confirm temperature range and packaging options. Ensure the ordering code matches the required automotive qualification standards for your application environment.

Controllers Selection Notes

Select this component when five 100BASE-T1 ports are required alongside an external MAC interface. Compare against LAN9381 if fewer T1 ports suffice. Confirm that the integrated CPU meets processing needs without an external host.

Controllers Part Context

Part of the LAN938x family, which scales from four to five 100BASE-T1 ports. The LAN9383 specifically provides five T1 ports, one SGMII, and one RGMII interface. It shares the same package and core architecture as the LAN9381, LAN9382, and LAN9384 models.

Controllers Replacement Considerations

LAN9381 offers four 100BASE-T1 ports. LAN9382 provides four T1 ports plus a 100BASE-TX port. LAN9384 includes five T1 ports and a 100BASE-TX port. Verify port count requirements before substituting.

Controllers FAQ

Does the LAN9383 support cascade mode?

Yes, the LAN9383 supports cascade mode with other LAN937x or LAN938x family devices to increase port counts.

What diagnostic capabilities are included?

It includes LinkMD+ cable diagnostics for opens, shorts, and length measurement, along with Signal Quality Indicator (SQI) monitoring.

Is the device qualified for automotive use?

Yes, it is AEC-Q100 qualified and operates within the Grade 2 Automotive temperature range of -40°C to +105°C.