RA2A2 32-bit Microcontrollers Renesas Electronics RA2A2 32-bit Microcontrollers (MCUs) are based on the 48MHz Arm® Cortex®-M23 core and provide rich peripheral features targeting a wide range of applications. These microcontrollers feature a high-resolution ADC, continuous firmware update facility, segment LCD, and low-power operation for simplifying the system design. The RA2A2 MCUs target energy management and general-purpose applications by supporting 24-bit sigma-delta ADC, dual-bank code flash, independent power supply RTC, and segment LCD. These microcontrollers offer package options supporting 64-pin to 100-pin with LFQFP packages.