For connecting industrial network devices
IEEE 10BASE-T1S Single Pair Ethernet Standard
Microchip LAN867x family of products, the first to implement


Operational Technology (OT) and Information Technology (IT) networks, which are the core of IIoT implementation, rely heavily on Ethernet for interoperability, accelerated data transmission, and security assurance. On the 21st, Microchip launched the 'LAN867x' 10BASE-T1S PHY family, which extends Ethernet connectivity to the forefront of industrial networks to simplify architecture and reduce risk.

The LAN867x Ethernet PHY transceiver is a high-performance, small-footprint device that can be connected to standard system devices, such as sensors and actuators, which previously required their own communication systems. The new device enables the extension of all-Ethernet infrastructure in OT/IT systems to the network edge.

Furthermore, a separate gateway is not required to interconnect incompatible communication systems. While reducing costs with single-pair wires, the multidrop bus architecture reduces the need for expensive switches and improves scalability. In addition, multiple nodes operate on the same bus line to provide high data throughput.

The 10BASE-T1S standard for single-pair Ethernet, released by IEEE, supports up to 8 nodes, multidrop topologies with a range of up to 25 meters, reduced cable count, and PCB development. The LAN8670, LAN8671, and LAN8672 Ethernet PHYs were designed and verified according to this standard.

All-Ethernet infrastructure simplifies architecture using widely known communication and security mechanisms, reducing the cost and risk of developing new systems. It also enables the use of protocols independent of physical layer speed and allows operation within established security infrastructures and ecosystems.

“Microchip’s 10BASE-T1S technology provides benefits for endpoint and cloud integration, connecting products, controls, software, and services simply and cost-effectively,” said Julien Michel, Head of Connected Systems Project at Schneider Electric. “It will contribute to maximum energy and resource utilization and sustainability.”

Matthias Kaestner, Vice President of Microchip’s Automotive Business Unit, explained, “Industrial system designers and developers face challenges in interconnecting various communication products and technologies,” adding, “10BASE-T1S Ethernet simplifies this interconnection process, enhancing the interoperability and speed critical to industrial environments.”

Microchip provides LAN8670, LAN8671, and LAN8672 reference designs, software drivers, system simulators, and evaluation boards. These products are in mass production in 32, 24-pin, and 36-pin VQFN packages, and pricing and information are available from Microchip distributors or authorized retailers worldwide. You can also purchase through the microchip purchase portal.