General-purpose 32-bit MCUs in the R9A02G021 group from Renesas employ an internally developed RISC-V CPU core. Renesas has designed and tested the new RISC-V core independently and implemented it in a commercial product that is available worldwide.
R9A02G021 MCUs enable embedded systems designers to develop low-power, cost-sensitive applications based on the RISC-V open-source instruction set architecture (ISA). The devices target such end markets as IoT sensors, consumer electronics, medical devices, small appliances, and industrial systems. They are also supported by a full-scale development environment and a network of toolchain partners.
The CPU core runs at 48 MHz and achieves a performance rating of 3.27 CoreMark/MHz. Power consumption is 162 µA/MHz when active, dropping to just 0.3 µA in standby with a wakeup time of 4 µs. Other features of the R9A02G021 group include:
- Memory: 128 KB code flash, 16 KB SRAM, and 4 KB data flash
- Serial communications interfaces: UART, SPI, I2C, SAU
- Analog peripherals: 12-bit ADC and 8-bit DAC
- Temperature range: -40°C to 125°C
- Operating voltage range: 1.6 V to 5.5V
Packaging options for the R9A02G021 MCUs include 16-pin WLCSP and 24-pin, 32-pin, and 48-pin QFN. Devices are available now through global distributors.
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