Microchip's LAN866x: Automotive Zone Architecture for Intelligent Data Connection

Vehicle Networking Zone Architecture with 10BASE-T1S Endpoints for Intelligent Data Connection

2025-11-13 From Stefanie Eckardt | Translated by AI 2 min Reading Time

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Microchip Technology has introduced the LAN866x family of 10BASE-T1S endpoints with Remote Control Protocol. These extend the Ethernet connection to the edge of the vehicle network and thus enable software-defined vehicles.

Microchip Technology has introduced the LAN866x family of 10BASE-T1S endpoints with Remote Control Protocol.(Image: Microchip) — Microchip Technology has introduced the LAN866x family of 10BASE-T1S endpoints with Remote Control Protocol.
(Image: Microchip)

As the automotive industry moves to zone architectures for in-vehicle networking, developers are faced with the challenge of connecting an ever-increasing number of sensors and actuators. Conventional approaches are often based on microcontrollers (MCUs) and customized software for each network node, which leads to more complex systems, higher costs and longer development cycles. To counteract this, Microchip has developed the LAN866x series of 10BASE-T1S endpoints with Remote Control Protocol (RCP). These extend the Ethernet connection to the edge of the vehicle networks and thus enable the vision of the software-defined vehicle (SDV).

Software-Free Conception

The LAN866x endpoints simplify network integration by acting as a bridge that translates Ethernet packets directly into local digital interfaces. Unlike conventional solutions, these endpoints are designed to be software-free. This reduces the need for node-specific software programming, which reduces the number of components and optimizes space requirements. By supporting standards-based RCP protocols, the endpoints enable centralized control of edge nodes for data streaming and device management. Together with a 10BASE-T1S multidrop topology, this solution supports a fully Ethernet-based zone architecture to reduce cabling, software integration and costs.

By eliminating software development at each node, LAN866x endpoints reduce hardware and development costs, shorten deployment times and simplify system architecture. The endpoints are suitable for critical vehicle applications such as lighting - including interior, front and rear lights - as well as audio systems and various control functions. In these applications, the endpoints enable direct bridging of Ethernet data to local digital interfaces that control LED drivers for lighting, transmit audio data to and from microphones and speakers, and control sensors and actuators over the network.

Simplify Cabling

The manufacturer's single-pair Ethernet/SPE solutions include a range of transceivers, bridges, switches and development tools that enable reliable, high-speed data transmission over a single twisted-pair cable and support 10BASE-T1S, 100BASE-T1, 1000BASE-T1 and higher speed standards. These solutions simplify cabling, reduce costs and optimize Ethernet connectivity for vehicles, industry and building automation. At the same time, they ensure interoperability and scalability.

The LAN866x series is available as a sample in limited quantities. (se)

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Date: 08.12.2025

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