Automotive MCU enables high speed in-vehicle networking

With security and generous on-chip code storage, according to the company, ST's latest Chorus automotive microcontroller is among the industry's first gateway/domain-controller chips capable of handling major OTA updates securely.

With three high performance processor cores, more than 1.2 Mbyte RAM and powerful on-chip peripherals, ST's new flagship SPC58 H Line joins the Chorus Series of automotive MCUs and can run multiple applications concurrently to allow more flexible and cost effective vehicle electronics architectures.

Two independent Ethernet ports provide high speed connectivity between multiple Chorus chips throughout the vehicle and enable responsive in-vehicle diagnostics. Also featuring 16 CAN-FD and 24 LINFlex(TM) interfaces, Chorus can act as a gateway for multiple ECUs (electronic control units) and support smart-gateway functionality via 2 Ethernet interfaces also on-chip.

"The way carmakers create, configure, deploy, and maintain new vehicles is changing, as software-defined functionality makes advanced features, flexibility, and convenience ever more widely accessible," said Luca Rodeschini, Automotive and Discrete Product Group Strategy and Microcontroller Business Unit Director, STMicroelectronics.

"Our latest and highest performing Chorus microcontroller, being OTA-ready and with dual Ethernet ports up to Gigabit speeds, creates a state-of-the-art platform for seamless, safe, and secure in-car connectivity and control."

To protect connected car functionalities and allow OTA updates to be applied safely, the new Chorus chip contains a Hardware Security Module (HSM) capable of asymmetric cryptography. Being EVITA Full compliant, it implements attack prevention, detection, and containment techniques.