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Microchip has expanded its 10BASE-T1S portfolio with the LAN8679 and LAN8680 transceivers and the LAN8660X/1X/2X endpoint family. The parts target vehicle zonal architectures and other edge systems; Microchip says they are in limited sampling. Pricing, production availability and customer adoption details were not provided in the source report.
Microchip Technology has expanded its 10BASE-T1S single-pair Ethernet portfolio with two physical-layer transceivers, the LAN8679 and LAN8680, and a family of endpoints that integrate transceivers. The products are designed for zonal vehicle architectures and applications including industrial automation, robotics and aerospace, extending Ethernet connectivity toward sensors and actuators at the network edge.
The LAN8679 uses the standardized OPEN Alliance 3-Pin interface, known as OA3P, and is housed in an 8-pin VDFN package measuring 3 by 3 millimeters. The LAN8680 adds system basis chip functions, including power management, wake and sleep control, and watchdog supervision. Its 16-pin VDFN package measures 3 by 4.5 millimeters.
Microchip says the LAN8680 includes low-dropout regulators for internal power and two switchable power outputs, supply monitoring, and an ultra-low-power sleep mode. The company says the devices are designed to meet AEC-Q100 and ISO 26262 requirements. The LAN8679, LAN8680 and LAN8660X/1X/2X family are specified for operation from -40°C to 125°C.
The LAN8660X/1X/2X endpoints combine a 10BASE-T1S physical-layer transceiver with a single-chip Remote Control Protocol device. Microchip says this lets edge nodes for control systems, lighting and audio connect without a separate external PHY. The family offers up to four serial communication interfaces for sensors and actuators and stores configuration in on-chip non-volatile memory. Microchip describes its configuration, control and diagnostic approach as a software-less architecture; details of system integration and the scope of software avoided were not specified in the source report.
Ethernet Moves Closer to Vehicle Sensors
The products address a design challenge in zonal vehicle networks: connecting multiple local sensors and actuators without requiring a separate network gateway for each group. In a 10BASE-T1S multidrop topology, multiple devices share one bus line. Microchip says such networks typically include eight or more nodes, reducing wiring weight and system cost while allowing devices to connect directly to the network edge.
That approach could matter as automakers distribute vehicle electronics across zones rather than relying solely on centralized wiring layouts. Fewer separate cable runs and gateway components may simplify network design, but the source material provides no measured cost or weight savings for a particular vehicle. The same devices are also aimed at industrial automation, robotics and aerospace, where distributed control and sensor connections are relevant.
The LAN8680’s integrated power and supervision functions and the LAN8660 family’s integrated endpoint capabilities offer designers different levels of integration. Whether those features reduce system complexity in a specific design will depend on requirements, implementation and validation; the product announcement does not provide comparative system results.
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How 10BASE-T1S Fits Zonal Networks
10BASE-T1S is single-pair Ethernet designed to support communication over a shared multidrop bus. Unlike a point-to-point arrangement in which each device has its own link, a multidrop layout allows multiple nodes to share a line. Microchip says this can connect sensors and actuators without gateways, while reducing wiring weight and system cost.
The announcement follows Microchip’s earlier LAN866x 10BASE-T1S endpoints, which Charged EVs covered in November 2025. The source report also notes that the same physical layer is specified for charging communication in the Megawatt Charging System. Chargebyte’s CCL MCS charge controller uses 10BASE-T1S in place of power-line communication, according to the report. That is related context, but the announcement does not say the newly introduced devices are part of that controller.
“The 10BASE-T1S multidrop topology can support typically eight or more nodes on a single bus line.”
— Microchip Technology, as reported by Charged EVs
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Sampling, Qualification and Pricing
The source report says the LAN8679, LAN8680 and LAN8660X/1X/2X are available in limited sampling. It does not state when general production availability will begin, provide pricing, identify customers or disclose shipment volumes. It also does not give test results demonstrating specific reductions in wiring, weight, cost or power use.
Microchip’s statement that the devices are designed to meet AEC-Q100 and ISO 26262 should not be read as confirmation that each part has completed qualification or holds a particular functional-safety certification. The report does not provide that status. Further details about compatibility, network performance and the precise software requirements of complete system designs also remain unavailable.
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From Samples to Production Designs
The near-term step is sampling: design teams can evaluate the parts in vehicle, industrial and other edge-network prototypes. Microchip has not announced a production-availability date in the source material. Further company information would be needed to establish pricing, qualification status, customer programs and when the devices may enter volume production.
For prospective adopters, the next practical milestones are validation in the intended network topology and confirmation that the devices meet the project’s power, timing, safety and environmental requirements. The announcement itself does not identify a vehicle launch, industrial deployment or customer commitment tied to these products.
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Key Questions
What did Microchip announce?
Microchip expanded its 10BASE-T1S portfolio with the LAN8679 and LAN8680 transceivers and the LAN8660X/1X/2X endpoint family, which integrates a transceiver.
What is the difference between the LAN8679 and LAN8680?
The LAN8679 is a transceiver with an OA3P interface. The LAN8680 adds system basis chip functions, including power management, wake and sleep control, and watchdog supervision.
What does 10BASE-T1S multidrop mean?
It is a network arrangement in which multiple devices share a single bus line. Microchip says a typical setup can support eight or more nodes; actual network design depends on the application.
Are the new devices available to buy?
The source report says the devices are in limited sampling. It does not provide pricing or a date for general production availability.
Has Microchip confirmed safety certification?
No certification result is given in the source report. Microchip says the devices are designed to meet AEC-Q100 and ISO 26262; qualification or certification status was not specified.
Source: rss
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