By Magda Dabrowska

Renesas Electronics Corporation introduced the RA2A2 microcontroller (MCU) Group based on the Arm Cortex-M23 processor. The new, low-power devices offer a 24-bit Sigma-Delta analog-to-digital converter (SDADC), and an innovative dual-bank code flash and bank swap function that make it easy to implement firmware over-the-air (FOTA) updates for smart energy management, building automation, medical devices, consumer

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