Renesas Debuts New Group in Popular RA0 Series with Best-in-Class Power Consumption and Extended Temperature Range

Renesas Electronics Corporation introduced the RA0E2 microcontroller (MCU) Group based on the Arm^® Cortex^®-M23 processor. The new, cost-competitive devices offer extremely low power consumption, extended temperature range, and a wide variety of peripheral functions and safety features.

Renesas introduced the RA0 MCU series in 2024 and it has quickly become very popular with a wide range of customers due to its affordability and low power consumption. RA0E1 devices have already been adopted in consumer electronics, appliance and white goods, power tools, industrial monitoring and other applications.

RA0E2 MCUs are fully compatible with RA0E1 devices, offering pin-expansion while maintaining the same peripherals and ultra-low power. This compatibility lets customers re-use existing software assets. The new devices deliver industry-leading power consumption of only 2.8mA current in active mode, and 0.89 mA in sleep mode. In addition, an integrated High-speed On-Chip Oscillator (HOCO) enables the fastest wake-up time for this class of microcontroller. The fast wake-up enables the RA0 MCUs to stay in Software Standby mode more of the time, where power consumption drops to a minuscule 0.25 µA (more info).