SPE PHYs expanded to include 100BASE-T1 and 1000BASE-T1

Single Pair Ethernet SPE PHYs expanded to include 100BASE-T1 and 1000BASE-T1

2024-08-21 From Kristin Rinortner | Translated by AI 2 min Reading Time

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Microchip has expanded its single-pair Ethernet offering to include 100BASE-T1 and 1000BASE-T1 PHY transceivers for network interoperability. The PHYs increase the range to 40 m and are in compliance with industry standards.

SPE PHYs: Microchip has expanded its SPE offering with the LAN887x series Ethernet PHY transceivers, which offer a greater range.(Image: Microchip) — SPE PHYs: Microchip has expanded its SPE offering with the LAN887x series Ethernet PHY transceivers, which offer a greater range.
(Image: Microchip)

To achieve more flexibility and interoperability, Microchip Technology has expanded its SPE offering to include the LAN887x series Ethernet PHY transceivers. They support data rates from 100 to 1000 Mbps with 1000BASE-T1 network speeds and cable lengths up to 40 meters.

The PHYs are compliant with IEEE 802.3bp for the 1000BASE-T1 specification and IEEE 802bw-2015 for the 100BASE-T1 specification. Microchip has collaborated with the University of New Hampshire's InterOperability Laboratory (UNH-IOL) to create the development test platform for 1000BASE-T1 compliance.

For many automotive and industrial applications that are operated in harsh environments and must withstand extreme temperatures, these components are also designed for functional safety according to ISO 26262 with ASIL-B classification.

The PHYs offer advanced diagnostics, including cable fault detection, a signal quality indicator, detection of connection dropouts and errors, an integrated self-test, as well as temperature and voltage monitoring. The PHYs support Type-A operation with cable lengths of up to 15 m and Type-B operation with extended cable lengths of up to 40 m, ensuring flexibility for different requirements for connecting end applications. Both operating modes include four inline connectors.

The LAN887x is a power-saving solution with EtherGREEN for greater energy efficiency. The TC10 sleep/wake-up function of the OPEN Alliance provides additional energy savings with a maximum standby current consumption of 16 µA, which extends the operating time in battery applications. An optional integrated linear regulator optimizes the bill of materials (BOM) costs by reducing the number of components in the design.

The PHYs are compatible with the manufacturer's microcontrollers (MCUs), microprocessors (MPUs), system-on-chip / SoC components, and Ethernet switches. Microchip offers a growing selection of SPE solutions, including PHYs, controllers, and switches, that support data transfer speeds from 10 to 1000 Mbps.

The PHY transceivers are supported by hardware evaluation platforms, Type-A and Type-B media converter kits, SFP/SGMII, USB, and PCIe plug-in boards, as well as Linux software drivers. The LAN8870, LAN8871 and LAN8872 are now available in series. (kr)

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