Renesas Electronics Corporation today announced the RZ/Five general-purpose microprocessor units (MPUs) built around a 64-bit RISC-V CPU core. The RZ/Five employs the Andes AX45MP, based on the RISC-V CPU instruction set architecture (ISA). The RZ-Five augments Renesas’ previously available Arm®CPU core–based MPUs, expanding customer options and providing more flexibility in the product development process.

“I am delighted that Renesas is among the first to announce a general-purpose MPU built around a 64-bit RISC-V CPU core from Andes,” said Hiroto Nitta, Senior Vice President and Head of SoC Business in the IoT and Infrastructure Business Unit at Renesas. “With the introduction of the RZ/Five MPUs along with ecosystem support, Renesas is taking the lead in providing RISC-V solutions ahead of the market.”

“RZ/Five is the first general-purpose MPU on the market to be built around a 64-bit RISC-V core from Andes,” said Frankwell Lin, Chairman and CEO at Andes Technology Corp. “Andes has collaborated with Renesas first on the 32-bit RISC-V core and now on the 64-bit AX45MP, and I anticipate that this development will lead to the early adoption of customers’ devices in the global market built with Andes’ advanced RISC-V processor families.”

Ideal for IoT Endpoint Devices

Demand is increasing for IoT endpoint devices, such as gateways for solar inverters or home security systems, to collect sensor data and connect to servers or to the cloud. In response to this need, RZ/Five is optimized to provide the performance and peripheral functions required of IoT endpoint devices. Its maximum operating frequency is 1 GHz. Peripheral functions include support for multiple interfaces, such as two Gigabit Ethernet channels, two USB 2.0 channels, and two CAN channels, as well as dual A/D converter modules. Support is also provided for connecting external DDR memory with error checking and correction (ECC) and security functions.

Long-Term Linux Support via Industrial-Grade CIP Linux

As with the RZ/G Series, a Verified Linux Package (VLP) featuring Civil Infrastructure Platform™ (CIP) Linux, an industrial-grade Linux offering long-term maintenance support for more than 10 years, is available for RZ/Five. This makes the RZ/Five series an ideal product in corporate infrastructure and industrial applications that require a high level of reliability and extended service life. It also allows users to dramatically reduce future Linux maintenance costs.

Winning Combinations with RZ/Five

Renesas will provide a complete system solution for the RZ/Five CPU module including Renesas’ DA9062 power management IC, 5P35023 programmable clock generator, AT25QL128A flash memory and SLG46538 GreenPAK IC implementing peripheral functions such as system reset. These devices work together seamlessly in Winning Combinations, such as SMARC System for Single Core Cortex-A55 MPU, that can be used as reference designs to reduce product development time. Renesas has developed and made available many other Winning Combinations that combine technically compatible devices from the Renesas product portfolio to help speed the design process for customers so they can bring products to market sooner.

Samples of the RZ/Five MPUs are available starting today, and mass production is scheduled to begin in July 2022. For more information, please visit: