• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
  • Skip to footer

Microcontroller Tips

Microcontroller engineering resources, new microcontroller products and electronics engineering news

  • Products
    • 8-bit
    • 16-bit
    • 32-bit
    • 64-bit
  • Applications
    • Automotive
    • Connectivity
    • Consumer Electronics
    • Industrial
    • Medical
    • Security
  • EE Forums
    • EDABoard.com
    • Electro-Tech-Online.com
  • Videos
    • TI Microcontroller Videos
  • EE Resources
    • DesignFast
    • eBooks / Tech Tips
    • FAQs
    • LEAP Awards
    • Podcasts
    • Webinars
    • White Papers
  • EE Learning Center

MCUs feature cap-touch sensing, low power consumption for HMI-based IoT apps

December 2, 2020 By Redding Traiger Leave a Comment

Renesas Electronics Corporation announced the expansion of its 32-bit RA2 Series microcontrollers (MCUs) with 20 new RA2L1 Group MCUs, increasing the RA Family to 66 MCUs. The general-purpose RA2L1 MCUs use the Arm Cortex-M23 core operating up to 48 MHz. The RA2L1 MCUs are supported by the easy-to-use Flexible Software Package (FSP) and Renesas’ partner ecosystem, which offers software and hardware building block solutions that work out-of-the-box. The ultra-low power and innovative touch interface of the RA2L1 MCUs make them ideal for home appliances, industrial and building automation, medical and healthcare, and consumer human-machine-interface (HMI) IoT applications.

The RA2L1 MCUs are designed for ultra-low power consumption, with several integrated features to lower BOM costs, including capacitive touch sensing, embedded flash memory densities up to 256 KB, SRAM at 32 KB, analog, communications, and timing peripherals, and safety and security functions. In many battery-powered applications, the MCU spends most of the time in a low-power standby mode waiting for an internal or external event to wake-up the CPU and process data, make decisions, and communicate with other system components.

When benchmarked for power consumption, the RA2L1 MCU was certified with an EEMBC ULPMark score of 304 at 1.8V, verifying its best-in-class power rating. Users can now minimize power consumption close to the standby levels to extend battery life.

The advanced capacitive touch IP in the RA2L1 MCUs provides enhanced operability for a variety of touch and touchless system implementations. For example, it supports sensing through acrylic or glass panels more than 10 mm thick, which is enough for use in household equipment with thick doors or partitions. It also implements proximity sensing (hovering) and 3D gestures. This accommodates hygiene or safety limitations. The RA2L1’s capacitive touch noise tolerance meets the requirements of IEC EN61000-4-3 level 4 (radiated) and EN61000-4-6 level 3 (conducted) to assure reliable operation with minimal sensing errors.

Key Features of the RA2L1 MCU Group include: 48 MHz Arm Cortex-M23 CPU core; Support for wide operating voltage range: 1.6V – 5.5V; Ultra-low power consumption delivering an operating current of 64 μA/MHz and software standby current of 250 nA with less than 5 µs fast wakeup; Employs Renesas’ 110nm low-power process for active and sleep/standby modes and special power-down modes designed for battery-driven applications; Flexible power modes achieve lower average power for multiple applications; Integrated next-generation innovative capacitive touch sensing unit with no external components required, lowering BOM costs; Enables system costs reduction with on-chip peripheral functions, including a high precision (1.0%) high-speed oscillator, temperature sensor, and multiple power supply interface ports; Background operation data flash supporting 1 million erase/program cycles; Scalable from 48-pin to 100-pin LQFP packages

The RA2L1 MCUs also offer an IEC60730 self-test library and feature integrated safety functions that provide confirmation of normal operation. Customers can easily use these safety functions to perform MCU self-diagnostics. In addition, the RA2L1 includes an AES cryptography accelerator, a true random number generator (TRNG), and memory protection units that provide the fundamental blocks to develop a secure IoT system.

The RA2L1 MCUs with Flexible Software Package (FSP) allows customers to re-use their legacy code and combine it with software from partners across the vast Arm ecosystem to speed implementation of complex connectivity and security functions. The FSP includes FreeRTOS and middleware, offering a premium device-to-cloud option for developers. These out-of-box options can be easily replaced and expanded with any other RTOS or middleware.

The FSP also includes a best-in-class HAL driver, as part of the FSP, and provides a host of efficiency-enhancing tools for developing projects targeting the RA2L1 MCUs. The e2 studio Integrated Development Environment provides a familiar development cockpit from which the key steps of project creation, module selection and configuration, code development, code generation, and debugging are all managed. The FSP uses a GUI to simplify the process and dramatically accelerate the development process, while also making it easy for customers to transition from an original 8/16-bit MCU design.

The RA2L1 MCUs are available now from Renesas’ worldwide distributors.

You may also like:


  • Functional safety for embedded systems – Virtual Roundtable (part 2…

  • Security for embedded systems – Virtual Roundtable (part 1 of…
  • Embedded systems software and programming
    Embedded systems software and programming for a safer world

  • Securing embedded systems in a hostile world

Filed Under: Applications, Hardware, Industrial, IoT, Machine learning, Medical, microcontroller, Products, Security, Telecommunications, Tools Tagged With: renesaselectronicscorporation

Reader Interactions

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Primary Sidebar

DesignFast

Component Selection Made Simple.

Try it Today
design fast globle

EE Training Center Classrooms

“ee

“ee

“ee

“ee

Subscribe to our Newsletter

Subscribe to weekly industry news, new product innovations and more.

Subscribe today

RSS Current EDABoard.com discussions

  • Why will at low temperature Corner point Analysis( in cadence Virtuoso) fails?
  • 32kW peak power in inrush NTC
  • How to include a modification in a PIC dev board with PIC16F877A for OVP ?
  • Whate happening if connected DC Reactor to braking resistor ?!?
  • 2kW Step-down PWM converter for high voltage dc-BUS

RSS Current Electro-Tech-Online.com Discussions

  • Touch circuit sound, led. 555 timer
  • Array of pointers to 16 series port SFRs.
  • Automotive 6 Volt Generator Transistor Voltage Regulator
  • Random noise generator calibration
  • Neon sign transformers for Tesla coil

Follow us on Twitter

Tweets by MicroContrlTips

Footer

Microcontroller Tips

EE World Online Network

  • DesignFast
  • EE World Online
  • EDA Board Forums
  • Electro Tech Online Forums
  • Connector Tips
  • Analog IC Tips
  • Power Electronic Tips
  • Sensor Tips
  • Test and Measurement Tips
  • Wire and Cable Tips
  • 5G Technology World

Microcontroller Tips

  • Subscribe to our newsletter
  • Advertise with us
  • Contact us
  • About us
Follow us on TwitterAdd us on FacebookFollow us on YouTube Follow us on Instagram

Copyright © 2021 · WTWH Media LLC and its licensors. All rights reserved.
The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of WTWH Media.

Privacy Policy