Source: Renesas Electronics

    Beijing, China, September 17, 2025 - Renesas Electronics Corporation (TSE: 6723), a global semiconductor solutions provider, today announced the launch of the RA0L1 microcontroller (MCU) product line based on the Arm Cortex-M23 processor. This series features ultra-low power consumption and provides an industry-leading capacitive touch solution for battery-powered devices and other consumer electronics, home appliances, white goods, and industrial system control fields, helping customers achieve rapid and economical deployment.

    Renesas' RA0 MCU series, launched in 2024, has won the favor of many customers with its economic efficiency and low power consumption advantages. The RA0L1 series, while maintaining these advantages, adds capacitive touch functionality, enabling designers to create responsive, aesthetically pleasing and low-power user interfaces at an extremely low cost.
    The RA0L1 series MCU boasts an outstanding power consumption performance in the industry: the current is as low as 2.9mA in working mode and only 0.92mA in sleep mode. In addition, this series also integrates a high-speed on-chip oscillator (HOCO), featuring the fastest wake-up speed among similar products. The fast wake-up function enables the RA0L1 MCU to maintain standby mode for A longer time, and its power consumption is reduced to a negligible 0.25μA, with current consumption reduced by up to 90% compared to other solutions.

A feature set optimized for low cost

    The feature set of the RA0L1 series is specifically optimized for cost-sensitive applications. Its operating voltage range is as wide as 1.6V to 5.5V, so customers do not need to configure additional level converters/regulators in 5V systems. This series of MCUS also integrates multiple communication interfaces, analog functions, security functions and security mechanisms, which helps to reduce the BOM cost for customers. The product offers a variety of packaging options, including a 4mm×4mm 24-pin QFN micro package.
    In addition, the high-precision (±1.0%) HOCO equipped in the new MCU can enhance the baud rate accuracy, eliminating the need for independent oscillators for designers. Unlike other HOcos in the industry, this oscillator can maintain this accuracy in an environment ranging from -40°C to 125°C. The wide-temperature feature enables customers to simplify thermal design without the need for time-consuming and costly "fine-tuning" after reflow soldering.

Renesas' outstanding advantages in capacitive touch technology

    Renesas offers the industry's leading capacitive touch technology, helping customers quickly and economically achieve high-quality touch interfaces in various systems. Its self-capacitance method can simplify the waterproof design and reduce the design complexity compared with the mutual capacitance scheme. Renesas' multi-frequency measurement technology complies with the fourth-level standard of IEC61000-4-3 and is suitable for medical applications that require strong protection against electromagnetic interference. In addition,    Renesas provides dedicated Capacitive Touch development resources, including the QE for Capacitive touch tool, which simplifies the sensitivity adjustment of capacitive keys and accelerates the development process.
    Daryl Khoo, Vice President of the Embedded Processing Marketing Division at Renesas, said: The RA0L1 integrates the advantages of the RA0 series MCU in terms of power consumption and cost-effectiveness, as well as our outstanding capacitive touch technology and tools. We look forward to our customers using these devices to create more innovative touch interface solutions.

The key features of the MCU in the RA0L1 product group
    · Core: 32MHz Arm Cortex-M23
    · Storage: Up to 64KB, integrated code flash memory and 16KB SRAM
    · Extended temperature range: Ambient temperature -40°C to 125°C
    · Timer: Timer array unit (16 bits ×8 channels), 32-bit interval timer (8 bits ×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
    · HMI: Capacitive touch (up to 24 channels), controlled current drive ports (up to 8)
    · Safety features: SRAM parity check, invalid memory access detection, frequency detection, A/D testing, output level detection, CRC calculator, register write protection
    · Security mechanisms: Unique ID, TRNG, flash access window, flash read protection
    · Packaging: 24/32/48-pin QFN, 32/48-pin LQFP, 20-pin LSSOP
    The brand-new RA0L1 product group of MCUS is supported by Renesas' Flexible Configuration Software Package (FSP). FSP offers all the necessary infrastructure software, 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 application development. It enables customers to integrate their existing code and selected RTOS with FSP, providing full flexibility for application development. With the help of FSP, customers can simplify the process of mutual migration with other RA series products.

Successful product portfolio
    Renesas has combined its new RA0L1 MCU product portfolio with a wide range of compatible devices in its product portfolio to create a broad "successful product portfolio", including capacitive touch remote controls. The "Successful product portfolio" is based on mutually compatible and seamlessly collaborating products, featuring a technically proven system architecture that brings optimized low-risk designs to accelerate product launch. Renesas has now launched over 400 "successful product portfolios" based on various products in its product lineup, enabling customers to accelerate the design process and bring their products to market more quickly. For more information, please visit renesas.com/win.

Supply information
    The RA0L1 product group MCU and FSP software are now available on the market. At the same time, the RA0L1 rapid prototyping development board and the RA0L1 capacitive touch evaluation system have been launched. Customers can order samples and kits on the Renesas website or through distributors. For more information, please visit: renesas.com/RA0L1.

Advantages of Renesas MCU
    As a globally outstanding supplier of MCU products, Renesas Electronics has had an average annual shipment of over 3.5 billion MCUS in recent years. Approximately 50% of these are used in the automotive field, while the rest are applied in industrial, Internet of Things, data centers, and communication infrastructure sectors. Renesas Electronics has a wide range of 8-bit, 16-bit and 32-bit product portfolios. The products it offers feature excellent quality and efficiency, as well as outstanding performance. Meanwhile, as a trusted supplier, Renesas Electronics has decades of experience in MCU design and is backed by a dual-source production model, industry-leading MCU process technology, and a vast system composed of over 250 ecosystem partners. For more information about Renesas' s MCU, please visit: renesas.com/MCUs.
 
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 expertise in embedded processing, analog, power and connectivity to offer complete semiconductor solutions. A successful product portfolio accelerates the time-to-market for automotive, industrial, infrastructure and Internet of Things applications, empowering billions of connected smart devices to improve people's work and lifestyle. For more information, please visit renesas.com. Follow Renesas Electronics' wechat official account to discover more exciting content.
 

    (Note) Arm and Arm Cortex are registered trademarks of Arm Limited in the European Union and other countries/regions. All product or service names mentioned in this press release are trademarks or registered trademarks of their respective owners.

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