LAN9668-I/9MX

Controllers Overview

The LAN9668-I/9MX is an industrial-grade Time-Sensitive Networking (TSN) Ethernet switch manufactured by Microchip Technology. It integrates an Arm Cortex-A7 processor with eight ports supporting 10/100/1000 Base-T PHYs and RGMII/RMII/SGMII interfaces. The device operates within a temperature range of -40°C to 85°C and utilizes a 256-HSBGA package measuring 14x14 mm. It supports IEEE 1588v2, IEEE 802.1AS-2020, IEEE 802.1Qci, IEEE 802.1Qav, IEEE 802.1Qbv, and IEEE 802.1CB standards for precise timing and traffic shaping.

Controllers Feature Summary

• Integrates an Arm Cortex-A7 CPU for processing network protocols and TSN features
• Supports comprehensive IEEE TSN standards including 1588v2, 802.1AS, 802.1Qci, 802.1Qav, 802.1Qbv, and 802.1CB
• Provides eight Gigabit Ethernet ports with integrated PHY capabilities
• Features multiple interface options including RGMII, RMII, and SGMII

Controllers Applications

• Industrial automation networks requiring deterministic latency
• Smart grid infrastructure utilizing media redundancy protocols
• Transportation systems needing high-precision clock synchronization
• Factory floor control systems implementing time-aware scheduling

Controllers Procurement Notes

Verify the specific suffix 'I' confirms the industrial temperature rating (-40°C to 85°C). Confirm the '9MX' designation aligns with the required RoHS3 compliance and moisture sensitivity level (MSL 3). Ensure the 256-HSBGA package dimensions match the PCB footprint requirements. Check for any recent PCN updates regarding packaging or material changes.

Controllers Selection Notes

Select this component when eight Gigabit ports are required alongside integrated TSN processing capabilities. The built-in Cortex-A7 allows for complex protocol handling without external processors. Compare against the LAN9662 series if only two ports are needed. Consider the LAN9668/9MX variant if commercial temperature ratings suffice instead of industrial specifications.

Controllers Part Context

This part belongs to the LAN9668x family of TSN switches designed for robust industrial connectivity. It complements support devices like the LAN8814 PHYs to reduce system complexity. The series enables unified network architectures across various industrial sectors by combining switching, routing, and real-time processing in a single silicon solution.

Controllers Replacement Considerations

The LAN9662-I/9MX serves as a parameter-equivalent substitute for designs requiring fewer ports. The LAN9668/9MX offers a commercial temperature alternative. The LAN9668-I/9MX is the direct equivalent for identical industrial specifications.