Renesas Adds Bluetooth 5.0 to MCU Family for IoT Devices Powered by Energy Harvesting

Article by: Renesas Electronics

Renesas Electronics’ RE01B MCU simplifies software program updates and information transfers for IoT units powered by vitality harvesting.

Renesas Electronics Corp. has expanded its RE household of 32-bit ultra-low energy MCUs with the introduction of the RE01B microcontroller (MCU) with Bluetooth help.

The brand new Bluetooth-enabled RE01B-MCU was developed utilizing SOTB (Silicon on Skinny Buried Oxide) course of know-how from Renesas and is good for vitality harvesting programs and clever IoT units that continuously should be operated at extraordinarily low energy ranges, with out having to alter or recharge batteries. The RE01B-MCU makes it straightforward to implement common information administration and firmware updates by way of Bluetooth, whereas holding energy consumption extraordinarily low and increasing battery life.

Purposes embrace compact well being units equivalent to pulse oximeters and biomedical sensor patches. Distant controls with voice recognition features and sensible meter modules. As well as, the RE01B is nicely suited to IoT units that require fixed operation, assortment of interval information, and updates equivalent to: B. Units used to observe the aged, kids, or property throughout transit.

“Managing the upkeep and alternative of batteries is a vital hurdle to the widespread adoption of ultra-low energy IoT units which are anticipated to function for lengthy intervals of time with restricted or no upkeep,” stated Shigeki Kato , Vice President of Enterprise Infrastructure at Renesas. “I’m happy that the addition of the brand new Bluetooth-enabled RE-MCU eliminates the necessity for battery upkeep in a broader vary of programs and meets the necessities of producers of IoT programs.”

The RE01B relies on the Arm Cortex-M0 + core and relies on the SOTB course of know-how developed by Renesas. It really works with a most working frequency of 64 MHz and achieves an influence consumption of solely 35 µA / MHz throughout operation and 600 nA in standby mode. It is among the many lowest within the business for a Bluetooth-enabled MCU. As well as, the RE01B might be mixed with the Renesas ISL9123 ultra-low Iq DC / DC converter configured as an exterior buck regulator to cut back energy consumption throughout operation to 15 µA / MHz and enhance vitality effectivity.

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