Ultra-Low Power MCU Group with Arm Cortex-M23 Core for Industrial Automation and Energy Sensitive IoT Endpoint Applications


ByLakshita Khanna 0

Renesas' RA2E2 32-bit Microcontroller

Renesas Electronics Corporation has introduced a new Group within its 32-bit RA Family of microcontrollers which is based on the latest Arm Cortex-M23 core and is designed to address the needs of demanding IoT endpoint applications, including wearables, medical devices, appliances and industrial automation. The new 48-MHz RA2E2 Group offers a unique combination of extremely low power consumption and space-saving packaging options including a tiny 16-pin WLCSP device measuring only 1.87 x 1.84 mm. Moreover, the RA2E2 Group includes nine different devices, spanning from 16-pin to 24-pin packages, and from 16KB to 64KB of flash memory along with 8KB of SRAM. 

These new MCUs support an extremely wide temperature range of -40/+125°C and consume only 81uA/MHz in active mode with software standby current of 200nA. These devices include 2KB of data flash memory and offer an I3C bus interface, delivering high-speed communications of 4.6 Mbps while significantly reducing power consumption.

Key Features of RA2E2 MCUs

  • 48 MHz Arm Cortex-M23 CPU core
  • Integrated flash memory options from 16KB to 64KB; 8KB RAM, and 2K data flash
  • Package options from a tiny 16-WLCSP to 20- and 24-pin QFN
  • Low power operation: 81uA/MHz in active mode with software standby current of only 200nA with fast wakeup
  • I3C bus interface for higher communication speed
  • Support for wide temperature range: Ta = -40/+125°C for harsh IoT operating environments
  • Security features including cryptography accelerator, TRNG and memory protection units
  • Wide operating voltage range of 1.6V to 5.5V

The RA2E2 Group is now available and delivers leading security features, including a cryptography accelerator (AES256/128), a True Random Number Generator (TRNG) and memory protection units.

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