Renesas Electronics has launched new products for its popular RA0 series

                                                                                        Source: Renesas Electronics Author: Renesas Electronics Time: 2025-04-22 11:26

                                                                                                                      Renesas Electronics' microcontroller MCU

The low-cost RA0E2 is applicable to fields such as consumer electronics, small household appliances, industrial system control, and building automation

Beijing, China, April 22, 2025 - Renesas Electronics (TSE: 6723), a global semiconductor solutions provider, today announced the launch of an ARM-based semiconductor solution. Cortex? The RA0E2 microcontroller (MCU) built with the M23 processor. This series of new products has significant cost competitiveness, offering extremely low power consumption while having a wider temperature range, and is equipped with a variety of peripheral functions and reliable safety features.

Renesas launched the RA0 MCU series in 2024. With its high cost performance and low power consumption features, this series of products quickly won the favor of a large number of customers. Among them, RA0E1 has been widely applied in many fields such as consumer electronics, home appliances and white goods, power tools, and industrial monitoring.

The RA0E2 MCU is compatible with the RA0E1 product. It expands the pins while maintaining the same peripherals and ultra-low power consumption. This compatibility allows customers to reuse existing software resources. The new product brings the industry's outstanding low power consumption: its power consumption in working mode is only 2.8mA, and it is as low as 0.89mA in sleep mode. In addition, its integrated high-speed on-chip oscillator (HOCO) enables extremely fast wake-up times for this series of MCUS, allowing the RA0 MCU to maintain software standby mode for A longer time and further reducing power consumption to only 0.25μA.

Renesas' RA0E1 and RA0E2 ultra-low power MCUS have created ideal solutions for battery-powered consumer electronics, small household appliances, industrial system control and building automation applications.

A feature set optimized for low cost
The feature set of RA0E2 has been meticulously optimized and is specifically designed for cost-sensitive applications. It supports a wide operating voltage range of 1.6V to 5.5V, which means that customers do not need to install additional level converters/regulators in a 5V system. The RA0 MCU integrates timers, serial communication, analog functions, functional safety functions and data security mechanisms, which can effectively reduce the BOM cost of customers. In addition, the product also offers a variety of packaging options, including a 5mm x 5mm 32-pin QFN micro package.

In addition, the high-precision (±1.0%) HOCO equipped in the new MCU can significantly enhance the baud rate accuracy, eliminating the need for designers to use additional independent oscillators. Unlike other HOCO, this HOCO can maintain this accuracy in an environment ranging from -40°C to 125°C. Such a wide temperature range enables customers to avoid expensive and time-consuming "fine-tuning" operations even after the reflux process.

Daryl Khoo, Vice President of the Embedded Processing Marketing Division at Renesas, said: "The market response of the RA0 series products has far exceeded our initial expectations." The RA0E2 product group of MCUS, with its ultra-low power consumption and price advantage, as well as a wider temperature range and larger memory capacity, will open up more application scenarios and cases. We plan to further expand the RA0 product lineup to provide the best solutions for users transitioning from 8-16-bit MCUS to 32-bit MCUS.

The key features of the RA0E2 product group MCU
Core: 32MHz Arm Cortex-M23
Storage: Up to 128KB code flash memory and 16KB SRAM;
Extended temperature range: -40°C to 125°C
Timer: Timer array unit (16-bit ×8 channels), 32-bit interval timer (8-bit ×4 channels), RTC;
Communication peripherals: 3 UArts, 2 asynchronous UArts, 6 simplified SPI, 2 I2C, 6 simplified I2C;
Analog peripherals: 12-bit ADC, temperature sensor, internal reference voltage;
Functional safety: SRAM parity check, invalid memory access detection, frequency detection, A/D testing, output level detection, CRC calculator, register write protection;
Data security: Unique ID, TRNG, AES library, flash read protection;
Package: 32-pin and 48-pin QFN; Pin 32, Pin 48 and Pin 64 LQFP.

The brand-new RA0E2 series MCUS are supported by Renesas' highly scalable configuration software package (FSP). FSP offers all the infrastructure software needed for development, including multiple RTOS, BSPS, peripheral drivers, middleware, connectivity, networking and security stacks, as well as reference software for building complex AI, motor control and cloud solutions, thereby accelerating the application development process. It enables customers to integrate their existing code and the selected RTOS with the FSP, creating full flexibility for application development. Customers can easily migrate the existing RA0E1 design to the larger RA0E2 series products with the help of FSP according to their own needs.

Supply information

The RA0E2 series of MCUS, FSP software and RA0E2 rapid prototyping development boards are now available. Samples and kits can be ordered on the Renesas website or through distributors

The advantages of Renesas MCU
As a globally leading supplier of MCU products, Renesas Electronics has seen an average annual shipment of over 3.5 billion MCUS in recent years. Approximately 50% of these MCUS are used in the automotive sector, while the rest are employed in industries such as manufacturing, the Internet of Things, data centers, and communication infrastructure. Renesas Electronics offers a wide range of 8-bit, 16-bit and 32-bit product portfolios, providing products with outstanding quality and efficiency, as well as excellent performance. Meanwhile, as a trusted supplier, Renesas Electronics has decades of MCU design experience and is backed by a dual-source production model, industry-leading MCU process technology, and a vast system composed of over 250 ecosystem partners.

About Renesas Electronics

Renesas Electronics (TSE: 6723), technology makes life easier, is committed to creating a safer, smarter and more sustainable future. As a global microcontroller supplier, Renesas Electronics integrates its expertise in embedded processing, analog, power and connectivity to offer complete semiconductor solutions. A successful product portfolio accelerates the launch of automotive, industrial, infrastructure and Internet of Things (iot) applications, empowering billions of connected smart devices to improve people's work and lifestyle.