text.skipToContent text.skipToNavigation




Renesas RA2E1 Microcontroller Group

New MCUs optimized for cost-sensitive and low-power applications

Renesas has launched the RA2E1 group of MCUs, its first entry-line microcontroller in the Renesas RA family. Based on a 48MHz Arm® Cortex®-M23 core, the RA2E1 group MCUs enable designers to build compact, energy-efficient systems at lower cost while minimizing the need for external components. These MCUs open up a cost-effective upgrade path for applications which are based on a 16-bit MCU and which require the extra performance available from a 32-bit product.

The ultra-low power consumption of the RA2E1 makes it suitable for battery-operated consumer products, appliances and sensors. Power consumption is just 100µA/MHz in Active mode and 250nA in Software Standby mode. Wake-up time from low-power mode is less than 5µs.

The need for external components is reduced by the Renesas RA2E1’s wide range of on-chip peripheral functions. These include a ±1.0% high-speed oscillator, a temperature sensor, a 32-bit timer, a 12-bit ADC and multiple power-supply interface ports. The RA2E1 also has an integrated Capacitive Touch Sensing Unit (CTSU2) which requires no external components.

The RA2E1 MCUs are available in various package options with from 25 to 64 pins, and with from 32kbytes to 128kbytes of Flash memory and 16kbytes of SRAM.

RA2E1 Features

  • Security capabilities:
    • AES cryptography accelerator
    • True random number generator
    • Memory protection units
  • Supply-voltage range: 1.6V to 5.5V
  • Operating-temperature range: -40°C to 105°C
  • Safety features for IEC/UL 60730 certification

RA2E1 Applications

  • White goods
  • Small battery-operated devices
  • Portable healthcare devices
  • Industrial automation
  • Building automation
  • HVAC
  • Smoke detectors
  • Thermostats
  • Alarms systems
  • Lighting

Development Kit

The Renesas EK-RA2E1 Development Kit provides all the components needed to evaluate the performance of the RAE21 series microcontrollers (MCUs).


FTM NA SideNav SubscribeTile EN
View all Issues of FTM


Related Material


For more information on the
Renesas RA Series Microcontrollers