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Ultra-Low Power RA2L1 MCU Group

RA2L1 MCUs use the Arm® Cortex®-M23 core operating up to 48 MHz and 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 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.

The ultra-low power and innovative touch interface of the RA2L1 MCUs make them ideal for home appliance, industrial and building automation, medical and healthcare, and consumer human‑machine‑interface (HMI) IoT applications.

Key Features

  • 48MHz Arm® Cortex®-M23

  • 128kB/256kB Flash Memory and 32kB SRAM with ECC

  • 8kB Data Flash to store data as in EEPROM

  • Scalable from 48-pin to 100-pin packages

  • Internal voltage regulators

  • Enhanced Capacitive Touch Sensing Unit (CTSU2)

  • 12-bit ADC, 12-bit DAC, LPACMP

  • 32-bit general PWM timer, 16-bit general PWM timer, low power asynchronous general purpose timer

  • RTC

  • SCI (UART, Simple SPI, Simple I2C)

  • SPI/I2C multi-master interface

  • CAN

  • Safety

  • Security and encryption


  • Consumer

  • Home appliances

  • Industrial automation

  • Building automation

  • Medical and healthcare

  • General purpose


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