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  3. Renesas — RA0E2 Series Ultra-Low-Power Microcontrollers (MCUs) for Entry-Level General-Purpose Applications

Renesas — RA0E2 Series Ultra-Low-Power Microcontrollers (MCUs) for Entry-Level General-Purpose Applications

 

Renesas

 

Renesas RA0E2 Series of Microcontrollers

Entry-level, ultra-low-power general-purpose MCUs known for cost effectiveness and ultra-low power consumption

Renesas features their RA0E2 microcontrollers (MCUs), offering excellent cost-effectiveness and ultra-low power consumption. Known as a basic, simple microcontroller in the entry line of the RA0 series, this series is a ROM/PIN extension product of the RA0E1 group, with which it is highly compatible.

The RA0E1 group delivers up to 32MHz of CPU performance using an Arm® Cortex®-M23 core with up to 128KB of embedded flash memory, 16KB SRAM, and a wide operation temperature range from -40 to 125°C.

The RA0 series is ideal for cost-sensitive applications such as low power and lower cost for consumer electronics, system control for small appliances, industrial system control, and building automation.

Key Features

BOM Cost Reduction and Simplified Design by Optimized Functions

  • 32 MHz Arm® Cortex® M23 CPU with optimized peripherals for cost sensitive applications
  • High operating temperature range (Ta: -40°C to 125°C) simplifies thermal design
  • Featuring high-precision (±1.0%) high-speed on-chip oscillator for enhanced accuracy
  • Wide operating voltage range of 1.6V to 5.5V eliminates the need for a level shifter/regulator in 5V systems

Low-Power Operation

  • Active current 88 μA/MHz, Standby: 0.29 uA
  • Flexible power architecture with quick wake up from Standby mode(1.6us)

Ease-of-Use Speeds Design Process

  • Scalability and compatibility with other series in RA family
  • Common tools and ecosystems in the RA family
  • Quick prototyping evaluation board at an affordable price

Applications

  • Household Water Pump
  • Sensor Signal Conditioner to Linearize Results
  • Cordless BLDC Hand Blender
  • Pure Sine Wave Home Inverter with BMS
  • LoRa®-based Solutions for RA Family
  • General purpose systems
  • IoT devices
  • Industrial automation and sensors
  • Consumer applications
  • Home appliances
  • Building automation
  • Medical & healthcare devices
  • Wearable devices

End Products

  • Consumer electronics
  • System control for small appliances
  • Industrial system control
  • Building automation

RA0E2 Block Diagram

 

Renesas — RA0E2 Microcontrollers

 

 

Fast Prototyping Board

RPB-RA0E2

The RA0E2 Fast Prototyping Board comes equipped with an RA0E2 MCU and is an evaluation board specialized for prototype development for a variety of applications. It has a built-in SEGGER J-Link™ emulator circuit so you can write/debug programs without additional tools. In addition, with Arduino Uno™ and Pmod™ interfaces included standard and through-hole access to all pins of the microcontroller, and so on, it has high expandability.

Sample software is available to demonstrate the functionality of the RA0E2 MCU and for connecting between the RA0E2 Fast Prototyping Board and various wireless or sensor module.