Renesas launches new RA0 series ultra-low power entry-level MCU

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Renesas launches new RA0 series ultra-low power entry-level MCU [Copy link]

Renesas Electronics (TSE: 6723), a global supplier of semiconductor solutions, today announced the launch of the RA0 microcontroller (MCU) series based on the Arm Cortex-M23 processor. The new 32-bit general-purpose MCU RA0 series not only achieves lower costs, but also provides ultra-low power performance.

The RA0 product consumes only 84.3μA/MHz in working mode and only 0.82mA in sleep mode. In addition, Renesas also provides a software standby mode in this new MCU, which can further reduce power consumption by 99% to a minimum of 0.2μA. With the fast wake-up high-speed on-chip oscillator (HOCO), this ultra-low power MCU is an ideal solution for battery-powered consumer electronic devices, small appliances, industrial system control, and building automation applications.

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Feature set optimized for low cost

Renesas has launched the first product group of the RA0 series: RA0E1. The feature set of this product is optimized for cost-sensitive applications and supports a wide operating voltage range of 1.6V to 5.5V, eliminating the need for level converters/regulators in 5V systems. The RA0 MCU also integrates timers, serial communications, as well as analog functions, security functions, and human-machine interface (HMI) functions to reduce customer BOM costs. In addition, the series offers a variety of packaging options, including a 3mm x 3mm tiny 16-pin QFN package.

The new MCU’s high-precision (±1.0%) on-chip oscillator (HOCO) improves baud rate accuracy, allowing designers to eliminate the need for a separate oscillator. And unlike other HOCOs, this accuracy is maintained over a -40°C to 105°C environment, a wide temperature range that eliminates the need for costly and time-consuming “fine-tuning” even after the reflow process.

The RA0E1 MCU not only has key diagnostic safety functions and an IEC60730 self-test library, but also provides a wealth of protection functions for data security, such as a true random number generator (TRNG) and an AES library, suitable for IoT applications including encryption.

“As a leader in embedded processing, our customers look to Renesas for optimal solutions for a wide range of applications,” said Akihiro Kuroda, Vice President of the Embedded Processing 2nd Division at Renesas . “The RA0E1 MCU Group delivers the ultra-low power and low cost required for price-sensitive systems while maintaining functional safety, data security, and ease of design. Combined with our recently introduced high-performance RA8 Series, Renesas can now bring best-in-class MCU solutions to a wide range of customer applications in all regions of the world.”

“Low-power IoT embedded applications in markets such as industrial automation and smart home have clear requirements for performance, efficiency and data security,” said Paul Williamson, senior vice president and general manager, IoT Line of Business at Arm . “The Renesas RA MCU family, built on Arm technology, currently offers a wide range of solutions from the low-power RA0 MCU to the high-performance AI-enabled RA8 products. All products use a common design environment for easy and fast development and migration.”

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Key Features of the RA0E1 MCU Group

Core : 32MHz Arm Cortex-M23
Storage : Up to 64KB of integrated code flash and 12KB of SRAM
Analog peripherals : 12-bit ADC, temperature sensor, internal reference voltage
Communication peripherals : 3 UARTs, 1 asynchronous UART, 3 simplified SPIs, 1 IIC, 3 simplified IICs
Functional safety : SRAM parity check, invalid memory access detection, frequency detection, A/D test, immutable storage, CRC calculator, register write protection
Data security : unique ID, TRNG, flash read protection
Packages : 16-, 24-, and 32-pin QFN, 20-pin LSSOP, 32-pin LQFP

The new RA0E1 product group MCUs are supported by the Renesas Flexible Software Package (FSP) . FSP brings all the infrastructure software needed, including multiple RTOS, BSP, peripheral drivers, middleware, connectivity, network and security stacks, as well as reference software for building complex AI, motor control and cloud solutions, thereby accelerating application development. It allows customers to integrate their existing code and selected RTOS with FSP to create full flexibility for application development. Customers can use FSP to easily migrate existing designs to larger RA series products according to their needs.

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A winning combination

Renesas has combined the new RA0E1 Group MCUs with numerous compatible devices in its portfolio to create a wide range of "Winning Combinations," including HVAC environmental monitoring modules for public buildings . These "Winning Combinations" are based on products that are compatible and work seamlessly together, with technology-proven system architectures that deliver optimized, low-risk designs to accelerate time to market. Renesas now has more than 400 "Winning Combinations" based on a variety of products in its lineup, enabling customers to accelerate the design process and bring products to market faster. For more information, visit renesas.com/win .

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In the Renesas Eco Community, you can apply for development or chip samples:

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Now they provide English version of data sheet and hardware manual

RA0E1硬件手册.pdf (7.01 MB, downloads: 0)

RA0E1数据手册.pdf (1.07 MB, downloads: 0, 售价: 1 分芯积分)

lugl4313820

Why do they allow users to quickly evaluate? They officially provide an evaluation board, FPB-RA0E1 Fast Prototyping Board

REN_fpb-ra0e1-v1-qsg_QSG_20240115评估板.pdf (161.14 KB, downloads: 1)

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Judging from the official examples, the support for E2Studuio is comprehensive:

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The sample program package he shared is as follows. The sample is mainly based on Renesas development tools:

r20an0745eu0100-fpb-ra0e1-exampleprojects.zip (3.6 MB, downloads: 0, 售价: 1 分芯积分)

lugl4313820

It took me a long time to find the Keil pack installation package for RA0E1, so I share it here.

Renesas.E2RFW_RA0E1.2.1.3.pack (9.09 KB, downloads: 1)

bigbat

The working voltage will be perfect if it drops by 0.5V, and you can have fun playing with dry batteries.

lugl4313820

bigbat posted on 2024-5-5 09:14 The working voltage will be perfect if it drops by 0.5V, and you can happily play with dry batteries.

It is indeed perfect.

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This morning I saw that the Renesas Eco Community has opened free applications for the RA-Eco-RA0E1-32PIN-V1.0 development board.

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If you don’t want to wait too long, it’s also on sale in his mall. The simplified version of the ecosystem is only 25 yuan. Of course, if it’s the official development board, it will cost 154 yuan.

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The schematics of the development board are also available:

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Common routines are also given:

34ab045216174a18316536d8d3ac13c5.zip (20.4 MB, downloads: 0)

lugl4313820

I have shared the download link of the data on the network disk, please take it if you need it:

Link: https://pan.baidu.com/s/19nOFJtrNcoLgxrPDloCkhQ?pwd=jh5e
Extraction code: jh5e
--Shared by Baidu Netdisk Super Member V6

Mcu_MMU

lugl4313820 posted on 2024-5-7 14:12 I shared the download link of the information on the network disk, please take it if you need it: Link: https://pan.baidu.com/s/19nOFJtrNcoLgxrPDloCkh ...

After reading your shared link, I found the content to be real and effective. I am very grateful for the moderator's sharing spirit!

Mcu_MMU

lugl4313820 posted on 2024-5-4 08:34 He shared his sample program package as follows. The sample mainly uses Renesas development tools:

The sample program package he shared is as follows. The sample is mainly based on Renesas development tools:

Is there any development board tool for Keil, or something like vscode?

Renesas launches new RA0 series ultra-low power entry-level MCU [Copy link]

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Feature set optimized for low cost

Key Features of the RA0E1 MCU Group

A winning combination

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