Automotive gateway solution based on R-Car S4 SoCs and PMICs

An automotive gateway solution with R-Car S4 system on chips (SoCs) and power management ICs (PMICs) for next-generation vehicle computers, communication gateways, domain servers and application has been launched by Renesas. The new solution meets the automotive industry’s requirements for high performance, high-speed networking, high-security and high-functional safety levels that are required as E/E architectures evolve into domains and zones. The solution enables software reusability and includes the new best-in-class PMICs designed to work seamlessly with the R-Car S4.

The Renesas R-Car S4 is one of the first products in Renesas’ 4th-generation R-Car family. It includes multiple Arm Cortex A55, Cortex R52 and the company says it is the first to implement an RH850 MCU for control domain management. R-Car S4 SoCs offer automotive interfaces such as 16x CAN FD, 16x LIN, 8x SENT, 1x FlexRay, 4x PCIe V4.0 and also a high-bandwidth 3 x 2.5Gbit ethernet switch to enable rich communication and connectivity options inside and outside the vehicle.

This automotive solution means designers can re-use up to 88 per cent of software code developed for third generation R-Car SoC and RH850 MCU applications. The software package supports R-Car S4 application development including the real-time cores with various drivers and basic software such as Linux BSP and hypervisors. In addition, a virtual platform is available from a partner company enabling early software development and evaluation to help reduce design time and cost.

The new PMICs provide advanced power modes that support low power operation. The RAA271041 PMIC accepts the vehicle’s 12V supply and supports wide operation for load dump and cold cranking pulses while providing the first-stage regulation. The RAA271005 is a Safe 11-channel PMIC that takes the RAA271041’s output and steps it down further to the various supply voltages needed by R-Car S4 and its peripherals such as LPDDR4x memory. The RAA271041 and RAA271005 PMICs provide a complete power solution from vehicle battery down to system voltage.

For more information go to

Latest News from Softei

This news story is brought to you by, the specialist site dedicated to delivering information about what’s new in the electronics industry, with daily news updates, new products and industry news. To stay up-to-date, register to receive our weekly newsletters and keep yourself informed on the latest technology news and new products from around the globe. Simply click this link to register here: Softei Registration