Next‑Generation 100/1000BASE‑T1 Single Pair Ethernet PHYs Integrate MACsec Security, Time Sensitive Networking and Functional Safety

Microchip (Nasdaq: MCHP) introduces the LAN878x and LAN888x families of Single Pair Ethernet (SPE) PHY transceivers in 100BASE-T1, 1000BASE-T1 and dual-speed 100/1000BASE-T1 variants.

Rhea-AI Summary

Microchip (Nasdaq: MCHP) introduces the LAN878x and LAN888x families of Single Pair Ethernet (SPE) PHY transceivers in 100BASE-T1, 1000BASE-T1 and dual-speed 100/1000BASE-T1 variants. Devices integrate hardware MACsec (IEEE 802.1AE‑2018), native TSN support and ISO 26262 ASIL‑B functional safety features for automotive and mission‑critical networks.

Pin‑compatible SKUs, SGMII/RGMII host interfaces, on‑chip diagnostics, 150°C max junction temperature and Automotive Grade 1 (-40°C to +125°C) support are highlighted. Limited samples are available; contact a Microchip sales representative for details.

Positive

• Integrated hardware MACsec compliant with IEEE 802.1AE‑2018
• Native TSN support for deterministic, low‑latency communication
• Pin‑compatible SKUs across 100BASE‑T1 and 1000BASE‑T1 for design reuse
• Automotive Grade 1 support and -40°C to +125°C operating range

Negative

• Availability limited to sampling at announcement
• No pricing or volume production timelines disclosed

Argus May 7 session

-1.30% close to close 1.6x rel. volume Open Argus

Details

News Market Reaction – MCHP

On May 7, the day this news came out, MCHP closed 1.30% below the previous close. That session’s volume was 1.6x the stock’s average daily volume.

Data tracked by StockTitan Argus for the May 7 session.

Key Figures

Ethernet speeds: 100BASE-T1, 1000BASE-T1, 100/1000BASE-T1 Security standard: IEEE 802.1AE-2018 Functional safety: ISO 26262 ASIL-B +2 more

Ethernet speeds

100BASE-T1, 1000BASE-T1, 100/1000BASE-T1

Supported Single Pair Ethernet PHY variants

Security standard

IEEE 802.1AE-2018

MACsec hardware-based security compliance

Functional safety

ISO 26262 ASIL-B

Engineered safety level for automotive systems

Max junction temperature

150°C

Designed for high reliability operation

Operating temperature range

-40°C to +125°C

Automotive Grade 1 operating conditions

Historical Context

5 past events · Latest: Apr 28

5 events

1. Apr 28

   Security controller launch

   24h Move

   -3.0%

   Introduced PQC-ready TS1800 and TS50x Trust Shield security controllers.

2. Apr 27

   Capacity expansion

   24h Move

   -2.9%

   Opened new facility to expand hydrogen maser production and cut lead times.

3. Apr 23

   Timing module launch

   24h Move

   +9.9%

   Launched MD-990-0011-B timing modules for data centers and 5G vRAN.

4. Apr 21

   MCU portfolio expansion

   24h Move

   +0.7%

   Expanded CLB-based PIC MCU lineup with new PIC16F and PIC18 families.

5. Apr 14

   DSC family expansion

   24h Move

   +1.3%

   Expanded dsPIC33A DSC family targeting AI data center power and control.

24h Move is the share-price change in the day after each event; other market factors may also have contributed.

Key Terms

single pair ethernet, macsec, time‑sensitive networking, iso 26262, +2 more

6 terms

single pair ethernet technical

"adopt Single Pair Ethernet (SPE) and all‑Ethernet architectures"

Single Pair Ethernet is a networking standard that sends Ethernet data and optional power over one pair of wires instead of the usual two or four pairs, like using a slim phone cord rather than a thick bundle of cables. For investors it matters because it lowers installation cost, saves space, and enables smart sensors and devices to be connected in factories, buildings, and vehicles more cheaply and widely, expanding markets for networking hardware and services.

macsec technical

"PHYs integrate hardware‑based MACsec security compliant with IEEE® 802.1AE‑2018"

MACsec is a standard way to encrypt and verify data on local Ethernet networks, protecting each packet like a sealed envelope so outsiders cannot read or tamper with it. For investors, MACsec matters because it reduces the risk of costly data breaches and regulatory fines, can be a selling point for networking products and services, and influences a company’s ability to secure enterprise and carrier customers in a competitive market.

time‑sensitive networking technical

"Native Time‑Sensitive Networking (TSN) support enables deterministic, low‑latency communication"

Time‑sensitive networking is a set of networking standards and technologies that make Ethernet traffic predictable and reliable for tasks that must happen at exact times—like coordinating machines on a factory floor or steering signals in vehicles. For investors, it matters because products and systems that guarantee timely, low‑delay data can command higher value, unlock new markets, and reduce operational risk for customers, influencing sales, adoption rates, and capital spending.

iso 26262 regulatory

"functional safety engineered for ISO 26262 ASIL‑B systems"

ISO 26262 is an international safety standard for the design and development of electrical and electronic systems in road vehicles, providing a rulebook and step‑by‑step checklist to prevent malfunctions that could lead to accidents. For investors, compliance signals lower regulatory, legal and commercial risk—reducing chances of costly recalls, delays or reputational damage—while lack of compliance can mean expensive redesigns, slower product launches and potential liability.

sgmii technical

"offer pin‑compatible SKUs across 100BASE‑T1 and 1000BASE‑T1 variants, as well as SGMII and RGMII"

SGMII is a technical standard for connecting a network controller to a transceiver so they can exchange gigabit‑speed Ethernet data over a simple serial link; think of it as a compact highway that carries one‑gigabit traffic between two chips. For investors, mention of SGMII signals that a product supports common high‑speed networking, which can mean better compatibility, lower cost and power use, and faster time‑to‑market—factors that can influence customer adoption and revenue.

rgmii technical

"variants, as well as SGMII and RGMII host interfaces"

RGMII stands for Reduced Gigabit Media Independent Interface, a technical standard that defines how a network controller chip talks to the physical Ethernet connector on a device. Think of it as a compact set of lanes and signals that let the brain of a router or switch send and receive gigabit Ethernet traffic efficiently. Investors care because use of RGMII affects product cost, power use, device size, and compatibility with other networking components, all of which can influence manufacturing margins and market acceptance.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Microchip’s LAN878x and LAN888x PHY families enable secure, scalable and deterministic Ethernet connectivity for automotive and industrial systems

CHANDLER, Ariz., May 07, 2026 (GLOBE NEWSWIRE) -- As automotive and industrial designers adopt Single Pair Ethernet (SPE) and all‑Ethernet architectures to support Software‑Defined Vehicles (SDVs) and complex industrial networks, demand is growing for secure, scalable connectivity. Microchip Technology (Nasdaq: MCHP) today announces the LAN878x and LAN888x families of Single Pair Ethernet (SPE) PHY transceivers, available in 100BASE-T1, 1000BASE-T1 and dual-speed 100/1000BASE-T1, designed to deliver secure, reliable and scalable Ethernet connectivity for automotive and other mission-critical applications.

The LAN878x and LAN888x PHYs integrate hardware‑based MACsec security compliant with IEEE^® 802.1AE‑2018, providing frame‑level confidentiality, data integrity and replay protection without adding system latency or software complexity. Native Time‑Sensitive Networking (TSN) support enables deterministic, low‑latency communication required for ADAS, zonal gateways and safety‑critical control networks.

The LAN878x and LAN888x families go beyond security and performance by delivering enhanced functional safety engineered for ISO 26262 ASIL‑B systems. Advanced on‑chip diagnostics and link monitoring increase visibility, accelerate fault detection and support stronger system‑level safety mechanisms than traditional SPE PHY solutions.

To simplify platform scalability and design reuse, the LAN878x and LAN888x families offer pin‑compatible SKUs across 100BASE‑T1 and 1000BASE‑T1 variants, as well as SGMII and RGMII host interfaces. This compatibility allows designers to reuse existing hardware designs while scaling network bandwidth to meet evolving performance requirements.

“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 LAN878x and LAN888x families allow teams to reuse designs while supporting higher data rates and stronger security. By integrating MACsec directly in the PHY, we help designers enhance network protection without added system complexities.”

The LAN878x family includes LAN8781, LAN8781M, LAN8782 and LAN8782M, while the LAN888x family includes LAN8881, LAN8881M, LAN8882, LAN8882M, LAN8883, LAN8883M, LAN8884 and LAN8884M. Devices with the “M” suffix support MACsec security. All devices are designed for high reliability, with a maximum junction temperature of 150°C, supporting Automotive Grade 1 operating conditions (-40°C to +125°C).

Beyond automotive, the LAN878x and LAN888x families also support a wide range of industrial and mission-critical applications, including industrial automation, robotics, avionics and other systems that require deterministic Ethernet communication.

Development Tools

The LAN878x and LAN888x PHY transceivers are supported by comprehensive hardware evaluation platforms; SGMII, USB and PCIe^® plug-in boards and Linux^® software drivers.

Pricing and Availability

The LAN878x and LAN888x families are available in limited sampling. To learn more, please contact a Microchip sales representative.

Resources

High-res images available through Flickr or editorial contact (feel free to publish):
•    Application image: www.flickr.com/photos/microchiptechnology/55205569200/sizes/l

About Microchip Technology:
Microchip Technology Inc. is a broadline supplier of semiconductors committed to making innovative design easier through total system solutions that address critical challenges at the intersection of emerging technologies and durable end markets. Its easy-to-use development tools and comprehensive product portfolio supports customers throughout the design process, from concept to completion. Headquartered in Chandler, Arizona, Microchip offers outstanding technical support and delivers solutions across the industrial, automotive, consumer, aerospace and defense, communications and computing markets. For more information, visit the Microchip website at www.microchip.com.

Note: The Microchip name and logo and the Microchip logo are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. All other trademarks mentioned herein are the property of their respective companies.

Editorial Contact:
Kim Dutton
480-792-4386
kim.dutton@microchip.com

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What SPE PHY variants did Microchip (MCHP) announce on May 7, 2026?

Microchip announced the LAN878x and LAN888x families in 100BASE‑T1, 1000BASE‑T1 and dual‑speed 100/1000BASE‑T1 variants. According to Microchip, families include pin‑compatible SKUs, SGMII/RGMII interfaces and devices with an "M" suffix that support MACsec.

Do the new MCHP LAN878x/LAN888x PHYs include MACsec and what standard do they follow?

Yes. The LAN878x and LAN888x integrate hardware MACsec compliant with IEEE 802.1AE‑2018. According to Microchip, this provides frame‑level confidentiality, integrity and replay protection without added system latency or software complexity.

What safety and operating conditions do Microchip LAN878x and LAN888x support?

Devices are engineered for ISO 26262 ASIL‑B functional safety and Automotive Grade 1 conditions. According to Microchip, they support a maximum junction temperature of 150°C and an operating range of -40°C to +125°C.

How can designers evaluate Microchip's new LAN878x and LAN888x PHY transceivers?

Evaluation is supported via hardware platforms, SGMII, USB and PCIe plug‑in boards plus Linux drivers. According to Microchip, comprehensive hardware evaluation platforms and software drivers are available to simplify development and integration efforts.