Renesas Launches Low-Power Microcontroller Line

Elizabeth Montalbano

March 18, 2013

2 Min Read
Renesas Launches Low-Power Microcontroller Line

"Less is more" is becoming all the rage in electronics design. There is more demand than ever for components that consume as little power as possible in the design of automation systems, appliances, medical devices, and similar types of electronics.

Small devices aren't the only ones with low power demands. That's why Renesas Electronics has introduced the first products in a new family RX200 series of 32-bit microcontrollers.

The company says its new RX210 chips allow for the development of high-performance electronics systems without high power consumption.


"The RX210 microcontrollers are perfect for applications that require high performance and low power, like factory automation, alarm systems, or electricity meters," Semir Haddad, a senior marketing manager in the company's microcontroller products and solutions division, told us in an email. "They are a good complement to our RL78 line of ultra-low-power microcontrollers that are lower performance but provide the best-in-class low power consumption."

Enhanced with more Flash and RAM memory, the RX210 devices provide more freedom for software development by allowing designers to implement more features while retaining the power of previous Renesas microcontrollers, Haddad said. "For instance, they can embed more language variants of their user interface in a single device, simplifying the design and logistics of their products." Designers can also implement complex software stacks, like TCP-IP, file systems, and encryption, and they can use the additional memory to embed an RTOS, like Micrium RTOS and Middleware.

Cost and regulatory considerations are among the factors driving the industry's low-power trend. "By lowering the power consumption in active mode, for the same performance, the designer can reduce the current output need of its power supply, thus reducing the cost of the power supply design," Haddad said. Also, more regulations are being passed to reduce power consumption as part of the effort toward energy efficiency.

Other features and benefits of the new RX210 microcontrollers include:

  • Low power in active mode (down to 96uA/DMips) and stop mode (down to 2ua with RAM and register retention) while delivering 76DMIps at 50Mhz in performance

  • Support for 5V operation for industrial and appliance designs

  • Scalability from 48 to 145 pins and from 32KB to 1MB Flash, with 8KB of data Flash included

  • Integrated safety features that enable IEC60730 or other safety standard support

  • An integrated rich function set of 7 Uart, 8 SPI, I2C, comparators, 12-bit ADC, 10-bit DAC, and 24-bit ADC (RX21A), which will reduce system cost by integrating most functions.

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About the Author(s)

Elizabeth Montalbano

Elizabeth Montalbano has been a professional journalist covering the telecommunications, technology and business sectors since 1998. Prior to her work at Design News, she has previously written news, features and opinion articles for Phone+, CRN (now ChannelWeb), the IDG News Service, Informationweek and CNNMoney, among other publications. Born and raised in Philadelphia, she also has lived and worked in Phoenix, Arizona; San Francisco and New York City. She currently resides in Lagos, Portugal. Montalbano has a bachelor's degree in English/Communications from De Sales University and a master's degree from Arizona State University in creative writing.

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