Renesas Unveils Ultra-Low Power MCU Featuring Enhanced Security and Specialized Peripheral Set for Metering and More Applications

Written by Emily J. Thompson, Senior Investment Analyst

Source: Newsfilter

Updated: Aug 21 2025

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Source: Newsfilter

Introduction of RA4C1 MCUs: Renesas Electronics has launched the RA4C1 microcontroller group featuring an 80-MHz Arm Cortex M33 processor, designed for battery-powered applications requiring advanced security and communication interfaces.
Power Efficiency and Security Features: The RA4C1 MCUs boast ultra-low power consumption with a standby current of less than 1.79 µA, alongside robust security features including a dedicated RSIP-300 security engine and hardware support for encryption algorithms.
Comprehensive Peripheral Support: These microcontrollers come equipped with dual bank flash memory, various communication peripherals (CAN FD, I2C, SPI), and integrated sensors, making them suitable for metering systems and industrial applications.
Development Support and Availability: Supported by Renesas' Flexible Software Package (FSP) for streamlined application development, the RA4C1 MCUs are now available along with evaluation boards, enhancing design efficiency for customers in various sectors.

About the author

Emily J. Thompson

Emily J. Thompson, a Chartered Financial Analyst (CFA) with 12 years in investment research, graduated with honors from the Wharton School. Specializing in industrial and technology stocks, she provides in-depth analysis for Intellectia’s earnings and market brief reports.