Expanded single pair ethernet portfolio with 100BASE-T1 and 1000BASE-T1 PHY transceivers for network interoperability 

The automotive and industrial markets are widely adopting Single Pair Ethernet (SPE) solutions for network connectivity because of the system level benefits of reducing cost, weight and cable complexity. SPE, with its proven performance and reliability in automotive applications, is now also being deployed in other segments like avionics, robotics and automation. 

Microchip Technology has expanded its SPE solutions with its family of LAN887x Ethernet PHY transceivers supporting 100Mbps to 1000Mbps using 1000BASE-T1 network speeds and cable lengths up to 40m for extended reach. 

For interoperability across industries, Microchip’s LAN887x PHYs are designed to be fully compliant with IEEE802.3bp for the 1000BASE-T1 specification and IEEE 802bw-2015 for the 100BASE-T1 specification. Microchip has collaborated with the University of New Hampshire InterOperability Laboratory (UNH-IOL) to create the development test platform for 1000BASE-T1 conformance. For many automotive and industrial applications that operate in harsh environments and need to withstand extreme temperatures, these devices are also designed to be ISO 26262 functional safety ready with ASIL B classification. 

These devices provide advanced diagnostics including cable fault detection, signal quality indicator, link down and errors, built in self-test, and temperature and voltage monitoring for increased reliability. To provide flexibility with varying connectivity requirements across end applications, the LAN887x PHYs support Type A operation with cable lengths up to 15m and Type B operation to support extended cable lengths of up to 40m. Both operation types include four inline connectors. 

The LAN887x is a low-power solution with EtherGREEN technology for increased energy efficiency. The OPEN Alliance TC10 Sleep and Wakeup feature provides additional power savings with a maximum of 16µA standby power consumption, which extends operating time in battery applications. An optional integrated linear regulator can optimise BOM costs by reducing the number of components in the design. 

Development tools

The LAN887x family of PHY transceivers is supported by comprehensive hardware evaluation platforms; Type A and Type B media converter kits, SFP (SGMII), USB and PCIe plug-in boards and Linux software drivers.