64-bit MPU features enhanced peripherals for IoT edge applications
The Renesas RZ/G3S microprocessor, which consumes very low standby power, performs fast boot of a Linux® operating system. Strong security features protect connected devices from cyberattack.
Renesas has introduced a new 64-bit general-purpose microprocessor which provides substantial power savings in IoT edge devices.
The latest addition to the Renesas RZ/G series, the RZ/G3S MPU is ideal for IoT edge devices because of its combination of low power consumption, as low as 10 µW in standby mode, and fast start-up of the Linux operating system. High-speed connectivity is another key feature of the RZ/G3S: the PCI Express interface is fast enough to support communication with a 5G wireless module.
The RZ/G3S main CPU is an Arm® Cortex®-A55 core operating at a maximum frequency of 1.1 GHz. This is supported by two Cortex-M33 cores as sub-CPUs operating at 250 MHz. It is possible to distribute workloads to the sub-CPUs, allowing the MPU to efficiently handle tasks such as receiving data from sensors, controlling system functions and managing power systems. This reduces the burden on the main CPU, enabling the designer to reduce component count, lower costs and reduce the size of the product.
The RZ/G3S benefits from a new power management system. The MPU also supports the DDR self-refresh function, which allows for data retention in DRAM while maintaining the ability to boot up a Linux OS quickly. Fast start-up allows IoT edge devices, which often operate intermittently, to save power and extend battery run-time because the device can be kept in stand-by mode for longer periods.
Moreover, the RZ/G3S MPU offers a standby mode which can maintain sub-CPU operation while consuming as little as 40 mW, offering the flexibility to optimize power consumption based on the operating requirements of each application.
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