Renesas adds power efficiency to embedded controller RE family

Renesas has announced that it has expanded its RE Family line-up of embedded controllers.

The company has added a new ultra-low power consumption member based on its breakthrough silicon-on-thin-buried-oxide ( SOTB) process technology and built around the Arm Cortex-M0+ core.

The newest member of the RE01 Group line-up is a 256 kilobytes (KB) flash memory variant in addition to the 1.5 megabytes (MB) flash memory embedded controller, already in mass production. The device features a minimum 3.16 mm × 2.88 mm WLBGA package size, and the new embedded controller is optimised for use in more compact product designs in IoT devices for sensor control, for applications such as smart homes, smart buildings, environmental sensing, structure monitoring, trackers, and wearable devices.

The embedded controller has received a certified EEMBC ULPMark-CoreProfile (CP) score of 705, verifying its energy efficiency. This high score was achieved through the use of Renesas’ proprietary SOTB process technology, which enables extreme reduction in both active and standby current consumption.

The controller features current consumption as low as 25 μA/MHz during operation and 400 nA during standby. Customers can further reduce operation current consumption to 12 μA/MHz by using Renesas’ ultra-low Iq ISL9123 as an external step-down regulator.

With ultra-low power consumption, the RE Family can dramatically extend the battery life of embedded devices. They are also capable of high-speed operation in applications that require real-time data processing from multiple sensors, even when powered by compact batteries with very small current output or by energy harvesting devices.

Currently available RE Family MCUs with 1.5 MB of flash memory are optimal for applications requiring a large memory capacity, such as image data processing or wireless firmware updating via wireless communication, while the new RE01 Group is optimal for compact devices and IoT devices for sensor control.