New single port Gigabit and Fast Ethernet PHYs aim to meet diverse and growing Ethernet connectivity needs

Microsemi Corporation, a provider of semiconductor solutions differentiated by power, security, reliability and performance, has launched compact single-port SimpliPHY™ Gigabit Ethernet (GbE) and Fast Ethernet (FE) PHYs (physical layer devices) with supporting open-source Linux drivers.

The new PHYs, including VSC8541 and VSC8531 GbE PHYs, and VSC8540 and VSC8530 FE PHYs, are designed to provide a flexible input/output interface in a package as small as 6 mm x 6 mm, enabling ubiquitous Ethernet connectivity.

Targeted to address diverse applications such as factory and building automation, video display arrays, 2-D and 3-D printers, and industrial automation endpoints, the new PHYs complement a large portfolio of Microsemi silicon solutions. This includes Ethernet switches, Power-over-Ethernet (PoE) systems and components, as well as timing integrated circuits (ICs) and field programmable gate arrays (FPGAs) to address wired, wireless and secure Ethernet connectivity needs in carrier, industrial and Internet of Things (IoT) networks.

“These new single-port SimpliPHY GbE and FE PHYs further underscore our commitment to bring cost effective, differentiated Ethernet solutions to Microsemi’s key focus markets, including industrial, IoT, enterprise and carrier/telecommunications,” said Uday Mudoi, vice president, marketing, for Microsemi’s Ethernet Networking Technology (ENT) group.

“These new devices, combined with open-source licensed Linux Driver Software and comprehensive design collateral, enable quick time to market for our customers and ecosystem partners.”

Market research firm IHS’s 2015 report, “1G/10G/40G/100G Networking Ports—Biannual Worldwide and Regional Market Size and Forecasts,” forecasts Gigabit Ethernet PHYs’ total annual broadband and infrastructure networking Ethernet copper media port shipments to grow more than 35%, from 526 million in 2015 to more than 717 million by 2019. An increasing number of Gigabit Ethernet-enabled end points are connecting into this infrastructure as the technology plays a crucial role in driving connectivity across a wide variety of applications.

To differentiate original equipment manufacturer (OEM) end-products the new PHYs claim:

  • Lower power consumption, reduced EMC/EMI and extended product
  • design life cycle with low voltage complementary metal oxide
  • semiconductor (LVCMOS) media independent interface
  • (MII) and management data input/output (MDIO) support at 1.5V, 1.8V, 2.5V, and 3.3V
  • Ease of printed circuit board (PCB) design, in a 68-pin 8 mm x 8mm QFN or a 48-pin 6 mm x 6 mm QFN package
  • Enhanced IEEE 1588v2 Precision Time Protocol (PTP) accuracy from a system-level solution, a requirement for future 5G designs

Microsemi PHYs also uniquely offer the ability to run VeriPHY™, a comprehensive cable diagnostics, while the link is actively carrying traffic—allowing superior troubleshooting and monitoring capabilities compared to competitive solutions. Additionally, the new PHYs’ configurable drive strength enables systems compliance with electromagnetic interference (EMI)/electromagnetic compatibility (EMC) certifications, such as FCC Class B and CE.

In addition to the cost savings for customers, Microsemi’s new single-port SimpliPHY GbE and FE PHYs offer a Fast-Link Failure 2 (FLF2™) indicator, which identifies whether a link might go down in less than 10 microseconds for 1000Base-T (or < 100 microseconds for 100Base-TX), as well as support for forced 1000BASE-T mode support with auto-reconnect in the event the link should come down.

In addition, the VSC8541XMV-03 features 1588v2 start-of-frame (SOF) support when used in reduced gigabit media-independent interface (RGMII) in 1000BASE-T mode, enabling enhanced 1588v2 PTP time stamp accuracy when used with an external FPGA or application-specific integrated circuit (ASIC) that performs Digital Dual Mixer Time Difference (DDMTD) along with 1588v2 PTP time-stamping, such as Microsemi’s SmartFusion™2 system-on-chip (SoC) FPGAs, as well as the necessary DPLL devices and 1588v2 servo algorithm. For more information about Microsemi’s IEEE 1588v2, visit

Other key features include:

  • Comprehensive support for either unmanaged or managed modes with 32 device addressability
  • Adjustable drive strength on GMII/RGMII/MII/RMII MAC-to-PHY interfaces, with 1.5V ~ 3.3V
  • Industrial temperature (I-Temp) offerings for both GbE and FE PHYs; C-Temp for GbE PHYS
  • Configurable recovered clock for Synchronous Ethernet (SyncE) (VSC8541 and VSC8540)
  • Low single event upset (SEU) failure-in-time (FIT) of < 80 (VSC8541XMV-03)

Product availability

Microsemi’s new single-port SimpliPHY Cu GbE and FE PHYs are available for purchase orders now. For more information, visit and or email

Comment on this article below or via Twitter: @IoTNow_ OR @jcIoTnow


Watch the MWC Las Vegas Keynote Livestream on IoT Now

Posted on: September 28, 2022

Catch the top keynote addresses live on IoT Now

Read more

Huawei launches FRMCS solution to facilitate digital transformation of railway

Posted on: September 28, 2022

Huawei officially launched the Future Railway Mobile Communication System (FRMCS) solution at the InnoTrans 2022 and the 9th Huawei Global Rail Summit in Berlin, Germany, where special guests, Wang Guoyu, COO of Huawei Aviation & Rail BU, and Li Jie, president of Huawei Enterprise Wireless Domain, spoke about its success.

Read more

9 IoT applications that will change everything

Posted on: September 1, 2021

Whether you are a future-minded CEO, tech-driven CEO or IT leader, you’ve come across the term IoT before. It’s often used alongside superlatives regarding how it will revolutionize the way you work, play, and live. But is it just another buzzword, or is it the as-promised technological holy grail? The truth is that Internet of

Read more

Which IoT Platform 2021? IoT Now Enterprise Buyers’ Guide

Posted on: August 30, 2021

There are several different parts in a complete IoT solution, all of which must work together to get the result needed, write IoT Now Enterprise Buyers’ Guide – Which IoT Platform 2021? authors Robin Duke-Woolley, the CEO and Bill Ingle, a senior analyst, at Beecham Research. Figure 1 shows these parts and, although not all

Read more

CAT-M1 vs NB-IoT – examining the real differences

Posted on: June 21, 2021

As industry players look to provide the next generation of IoT connectivity, two different standards have emerged under release 13 of 3GPP – CAT-M1 and NB-IoT.

Read more

IoT and home automation: What does the future hold?

Posted on: June 10, 2020

Once a dream, home automation using iot is slowly but steadily becoming a part of daily lives around the world. In fact, it is believed that the global market for smart home automation will reach $40 billion by 2020.

Read more

5 challenges still facing the Internet of Things

Posted on: June 3, 2020

The Internet of Things (IoT) has quickly become a huge part of how people live, communicate and do business. All around the world, web-enabled devices are turning our world into a more switched-on place to live.

Read more

What is IoT?

Posted on: July 7, 2019

What is IoT Data as a new oil IoT connectivity What is IoT video So what’s IoT? The phrase ‘Internet of Things’ (IoT) is officially everywhere. It constantly shows up in my Google news feed, the weekend tech supplements are waxing lyrical about it and the volume of marketing emails I receive advertising ‘smart, connected

Read more
IoT Newsletter

Join the IoT Now online community for FREE, to receive: Exclusive offers for entry to all the IoT events that matter, round the world

Free access to a huge selection of the latest IoT analyst reports and industry whitepapers

The latest IoT news, as it breaks, to your inbox