Automotive-Grade 10BASE-T1S Ethernet Interface Devices Boost In-Vehicle Networking Capabilities

04 October 2023

AEC-Q100 Grade 1 qualified, the LAN8650/1 MAC-PHY ICs from Microchip fully support the 10BASE-T1S 10Mbps low-latency SPE protocol. Using them, half-duplex point-to-point communication can be conducting over a reach of at least 15m.

By having integrated MAC and SPI elements, they are able connect microcontroller units (MCUs) without built-in Ethernet MACs to 10BASE-T1S networking infrastructure - thereby making Ethernet technology effectively ubiquitous throughout the vehicle. Being 10BASE-T1S compliant, time-sensitive networking (TSN) is supported, resulting in synchronisation of data transmissions. This also means that the devices have a multi-drop capacity too. Over-temperature and under-voltage protection mechanisms are included, and they have a -40°C to +125°C operational temperature range.

“Microchip continues to develop automotive connectivity solutions with its line of 10BASE-T1S products, providing the industry with turnkey solutions that meet customers’ requirements,” states Microchip’s CVP for Automotive, Matthias Kaestner. “This new technology will connect sensors and actuators in the physical world all the way to the cloud, enabling a seamless Ethernet architecture in vehicles, which in turn reduces development effort and time to market.” 

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