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Renesas Electronics Expands Touch-Based Application Possibilities for Home Appliance, Building, and Industrial Automation Applications with RX130 Group of MCUs

Düsseldorf, November 24, 2015 – Renesas Electronics Europe, a premier supplier of advanced semiconductor solutions, today announced it is expanding development support for touch-based home appliance, building, industrial automation, and portable medical applications with the new RX130 Group of 32-bit microcontrollers (MCUs). The new Group allows embedded developers to incorporate both user interface (i.e., touch key) and system control capabilities in a single MCU. Developers working with capacitive touch-based applications can leverage Renesas’ state-of-the-art second-generation capacitive touch technology, with self- and mutual-capacitance capability, in an ultra-low power, low-cost 32-bit MCU fabric.

The new RX130 Group combines excellent sensitivity and noise tolerance, making it possible to develop touch keys employing a variety of cover materials, including thick acrylic, glass, wood, fabric, or stone, for use in a broad array of new applications. These include control panels for electric appliances used in locations where they are likely to get wet, home equipment employing recessed switches for a more attractive design, and industrial machinery that must be operated with gloves on for safety reasons.

The new RX130 Group complements the existing lineup of Renesas MCUs supporting capacitive touch-based applications, including: the RX231 Group for high-end electric home appliances and industrial machinery, supporting DSP/FPU (Note 2) and enhanced security and communication functions; and the RX113 Group for home equipment and healthcare devices, with LCD display and USB communication functions. With the addition of the new RX130 Group, Renesas’ lineup of touch key MCUs comprises 256 product versions in total, with flash memory capacities ranging from 64 KB to 512 KB and number of pins ranging from 48- to 100-pins. Pin compatibility and software compatibility are maintained between the RX231 and RX130, making it possible to reuse existing software resources and providing coverage for devices from mid- to low-end to high end.

Key features of the RX130 Group:

(1) Ability to detect up to 64 touch keys for simplified board design

The RX130 MCUs can support complex user interface requirements with support for up to 36 touch keys in self-capacitance mode and up to 36 keys through matrix configuration. The RX130 Group also offers mutual capacitance mode, which allows the number of touch keys to be expanded up to 64, among the most supported anywhere. This reduces the wiring complexity when adding a touch panel and helps simplify the board design. The high-speed processing of the 32-bit CPU means that the load on the CPU is less than 10 percent even during 64-key control. The RX130 Group allow the developer to run very processor intensive applications, while still managing the capacitive touch interface. 

(2) Industrial-leading low touch key standby current among the lowest in the world for reduced power load

Using an on-chip oscillator operating at 15 kHz (kilohertz), a low-power timer that consumes very little power wakes the CPU from the idle state at regular intervals to detect contact with the touch panel. This enables the RX130 Group to achieve an industrial-leading low standby current of approximately 8?A (Note 1). The low standby current helps reduce the power consumption load imposed when adding a touch key, which enables capacitive touch capabilities for battery-operated and other portable devices with low power consumption requirements.

(3) Improved support for touch key adoption thanks to expanded selection of reference software and documentation needed for development

Using the Workbench6 automatic calibration tool with Renesas touch key MCUs makes it possible to use a graphical user interface (GUI) to adjust the sensitivity and other settings easily, something that was previously complicated by the effects of factors such as the board layout and tracing pattern, the panel material, etc. Future upgrades to Workbench6 will allow it to be used not only as a development tool but, in conjunction with software and information needed for development that is also being made available, including application notes, user’s manuals, and reference software, it will be possible to use Workbench6 with a sample MCU and an evaluation board to confirm and evaluate system operation immediately. An RX130 touch-based evaluation kit that includes Workbench6 is scheduled to be available in February 2016.

Availability

Samples of the RX130 Group are available now. Mass production is scheduled to start in March 2016 and to reach a scale of 500,000 units per month by March 2017. 

Refer to the separate sheet for main specifications of the RX130 Group.

Note 1) Standby current for one touch panel channel with a period of 100 ms.

Note 2) Digital signal processor/floating point unit

Note 3) An integrated development environment supporting Renesas RX family MCUs (RX600, RX200, and RX100) that is based on Eclipse, an open source integrated development environment in widespread use worldwide, and CDT plugins that allow use of the C/C++ language for development. 

About Renesas Electronics Europe

Renesas Electronics Europe, with its business operations centre located in Dusseldorf, Germany, is a wholly owned subsidiary of Renesas Electronics Corporation (TSE: 6723). As the world’s number one supplier of microcontrollers and a premier supplier of advanced semiconductor solutions, Renesas supports customers get their products to market quicker by providing complete solutions that integrate microcontrollers and microprocessors, SoC, ASIC, Analog & Power devices and software. Renesas was established in 2010 and is headquartered in Japan. With over 800 hardware and software alliance partners worldwide it has the industry’s largest local support network.

Renesas Electronics’ European structure is comprised of two business groups – automotive and industrial – as well as the global ADAS solution group and the engineering group. The engineering group consists of the European Design Centre, the European Quality Centre and the European Technology Centre, which design leading-edge products specifically for the European as well as the global market and provide technical support to local customers. 

Further information about Renesas Electronics Europe is available at www.renesas.eu.

Renesas Electronics Europe is also on social media at http://twitter.com/Renesas_Europehttp://facebook.com/RenesasEurope andhttp://youtube.com/RenesasPresents.

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