Continuing deployments led to Microchip’s delivery of the 25 millionth MOST50 INIC

Microchip Technology, a provider of microcontroller, mixed-signal, analog and Flash-IP solutions, has announced that a wide variety of brands from carmakers General Motors and Toyota Motor, including both volume and luxury vehicles, continue to deploy Microchip’s MOST50 devices in their infotainment systems. Their growing usage over the years recently resulted in the shipment of Microchip’s 25 millionth MOST50 Intelligent Network Interface Controller (INIC).

To learn more about Microchip’s MOST networking products, visit

To date, more than 170 million MOST devices have been installed in 184 car models since 2001. GM, Toyota and all major carmakers have for many years successfully implemented MOST technology in their multi-node infotainment networking systems, as it provides a field-proven, low-risk, whole-system solution. GM and Toyota’s networks utilise Microchip’s MOST50 INICs, featuring an Electrical Physical Layer (ePHY) that is optimised for use with Unshielded Twisted Pair (UTP) copper wire. The result is a system that can predictably and efficiently transport video, audio, packet and control data throughout the vehicle without time-synchronisation protocols, using dedicated channels for minimal processor overhead in the main infotainment control unit processors. The remote-connection-management and remote-control capabilities of all MOST INICs enable further options, including the ability to build slim (processor-less) network nodes. MOST INICs also provide industry-standard hardware interfaces to processor and peripheral devices for the efficient routing of audio, video and packet data, which greatly simplifies module designs. End users can immediately access the vehicle’s infotainment system, due to the MOST INIC’s ultra-fast network startup feature.

“This milestone demonstrates the continuing global acceptance of MOST networking technology in both volume and luxury vehicle platforms,” said Dan Termer, vice president of Microchip’s Automotive Information Systems Division. “Carmakers, including General Motors and Toyota, have successfully implemented multi-node MOST50 networking systems. This is especially satisfying since the models employing MOST technology received exceptional results in the latest Consumer Reports vehicle reliability and JD Powers and Associates vehicle dependability survey rankings, where in-vehicle technology performance has become a larger factor in the vehicle’s overall rating.”

The MOST Cooperation standards enable automotive OEMs and their Tier 1 suppliers with a proven and well-supported methodology for defining and implementing high-bandwidth infotainment and Advanced Driver Assistance (ADAS) systems, including a standard physical layer and a robust method for system management and control with superior reliability and Quality of Service (QoS). Using MOST technology also results in reduced weight for easier compliance with environmental regulations.

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