Renesas Launches RA0E2 MCU with Low Power Use, Wide Temperature Range, and 32-Bit Performance

Renesas Electronics has launched its new RA0E2 microcontroller (MCU), designed for people building energy-efficient and budget-friendly electronics.Built on the Arm Cortex-M23 processor, this new chip is part of the popular RA0 series, which has been a big hit thanks to its affordability, low power use, and versatility. What makes the RA0E2 special is that, it’s fully compatible with the earlier RA0E1 version, so you can easily reuse existing software and designs. It uses very low power, 2.8mA while running and 0.89mA in sleep mode. In deep sleep mode, it goes down to just 0.25µA, which helps save battery life. Its built-in high-speed oscillator means it can wake up from sleep mode when needed.

This MCU operates reliably in a wide temperature range, from -40°C to 125°C, without the need for extra adjustments after production. It's suitable for small appliances, consumer devices, industrial systems, and smart building controls. The RA0E2 offers 32-bit performance at a power and cost level that fits well as a replacement for older 8- or 16-bit microcontrollers.

Features of the RA0E2 Group MCUs

• 32MHz Arm Cortex-M23

• Up to 128KB Flash, 16KB SRAM

• Operates from -40°C to 125°C

• Multiple 16-bit and 32-bit timers, plus real-time clock

• UART, SPI, I2C – multiple channels of each

• 12-bit ADC, built-in temp sensor, voltage reference

• Memory checks, error detection, CRC, and protection feature

Applications of the RA0E2 Group MCUs

• Operated consumer electronics devices

• Small appliances

• Industrial system control

• Building automation applications