Microchip Technology Inc. (NASDAQ: MCHP) announced the LAN878x and LAN888x families of Single Pair Ethernet PHY transceivers designed for automotive and industrial applications. The chips support 100BASE-T1, 1000BASE-T1, and dual-speed 100/1000BASE-T1 configurations.

The new transceivers integrate hardware-based MACsec security compliant with IEEE 802.1AE-2018 standard, providing frame-level confidentiality and data integrity protection. The devices also include Time-Sensitive Networking support for low-latency communication requirements in automotive systems.

The chip families feature functional safety capabilities engineered for ISO 26262 ASIL-B systems, with on-chip diagnostics and link monitoring for fault detection. The devices operate at junction temperatures up to 150°C and support Automotive Grade 1 operating conditions from -40°C to +125°C.

The LAN878x family includes four models: LAN8781, LAN8781M, LAN8782, and LAN8782M. The LAN888x family comprises eight models: LAN8881, LAN8881M, LAN8882, LAN8882M, LAN8883, LAN8883M, LAN8884, and LAN8884M. Models with "M" designation include MACsec security functionality.

The transceivers offer pin-compatible designs across different speed variants and support both SGMII and RGMII host interfaces. This compatibility allows designers to reuse hardware designs while scaling network bandwidth.

"OEMs need a clear and efficient path to scale Ethernet performance as vehicle networks evolve," said Charlie Forni, corporate vice president of Microchip's networking and connectivity business unit.

The devices target applications including automotive systems, industrial automation, robotics, and avionics. Microchip provides hardware evaluation platforms, plug-in boards, and Linux software drivers for development support.

The LAN878x and LAN888x families are available in limited sampling, according to the company's announcement.