Microchip Technology has introduced its new LAN878x and LAN888x families of Single Pair Ethernet (SPE) PHY transceivers designed to support secure, scalable, and deterministic Ethernet connectivity for next-generation automotive, industrial, and mission-critical applications. The newly launched product families include 100BASE-T1, 1000BASE-T1, and dual-speed 100/1000BASE-T1 PHY devices engineered to support the rapidly evolving networking requirements of software-defined vehicles (SDVs), industrial automation systems, robotics platforms, avionics, and intelligent infrastructure applications.
Microchip stated that the growing shift toward all-Ethernet architectures across automotive and industrial sectors is driving increasing demand for secure, low-latency, and highly reliable connectivity solutions capable of supporting complex data-intensive applications. The LAN878x and LAN888x families integrate hardware-based MACsec security compliant with IEEE 802.1AE 2018 standards, enabling frame-level data confidentiality, integrity protection, and replay attack prevention without introducing additional latency or software complexity.
The company said the integrated security architecture helps automotive and industrial designers strengthen cybersecurity protections while simplifying overall system integration and network management. The PHY families also feature native support for Time Sensitive Networking (TSN), enabling deterministic and low-latency communication essential for advanced driver assistance systems (ADAS), zonal vehicle architectures, industrial control networks, robotics, and other real-time applications.
Microchip noted that the new devices are engineered to support ISO 26262 ASIL B functional safety requirements through integrated diagnostics, advanced link monitoring capabilities, and enhanced fault detection mechanisms. These features improve system-level safety visibility and operational reliability in environments where uninterrupted communication and rapid fault response are critical.
Charlie Forni, Corporate Vice President of Microchip’s Networking and Connectivity Business Unit, said automotive and industrial manufacturers are increasingly looking for scalable Ethernet solutions capable of supporting higher bandwidth, stronger security, and simplified hardware reuse. He added that integrating MACsec directly into the PHY architecture enables customers to strengthen network protection while minimizing additional design complexity and accelerating deployment timelines.
The LAN878x family includes LAN8781, LAN8781M, LAN8782, and LAN8782M devices, while the LAN888x portfolio includes LAN8881, LAN8881M, LAN8882, LAN8882M, LAN8883, LAN8883M, LAN8884, and LAN8884M. Devices carrying the “M” suffix include integrated MACsec functionality for enhanced cybersecurity capabilities.
The company said all devices are designed for high-reliability automotive environments with support for Automotive Grade 1 operating conditions ranging from -40°C to +125°C and maximum junction temperatures of 150°C. Microchip also emphasized that the pin-compatible architecture across 100BASE-T1 and 1000BASE-T1 variants allows manufacturers to reuse existing hardware platforms while scaling network performance according to evolving system requirements.
Microchip Technology Inc develops embedded control and processing solutions designed for secure, connected, and intelligent applications. With a broad product portfolio and streamlined development tools, the company supports efficient system design aimed at reducing development risk, cost, and time to deployment. Serving more than 100,000 customers worldwide, Microchip’s technologies are applied across sectors including industrial, automotive, consumer electronics, aerospace and defense, communications, and computing. Based in Chandler, Arizona, the company maintains a focus on reliable product delivery, high manufacturing quality, and strong technical support.
