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Secure Bluetooth Low Energy microcontroller

onsemi has revealed that its secure RSL15 wireless microcontroller (MCU) provides the industry’s lowest power consumption.

Enabled with Bluetooth Low Energy wireless connectivity, the RSL15 has been designed to address the growing demand of connected industrial applications for security without sacrificing power consumption.

To validate energy efficiency, the RSL15 was certified by the Embedded Microprocessor Benchmark Consortium (EEMBC). The organisation’s ULPMark -CoreMark benchmark programme measures the energy efficiency of microcontrollers used in embedded systems while active.

The RSL15 is said to now lead its class by attaining a ‘performance’ score of 60.5.

The RSL15 has also been designed with ArmTrustZone technology to establish device root of trust as well as Arm CryptoCell-312 technology to protect the authenticity, integrity and confidentiality of code and data.

This PSA Level 1 certified design enhances the security measures already offered as part of the Bluetooth protocol, providing assurance at both the application and software levels.

The RSL15 supports a number of new capabilities provided by the Bluetooth 5.2 specification, including longer range, higher data transmissions and localisation through angle of arrival (AoA) and angle of departure (AoD).

onsemi has also developed a smart sensing feature that allows the Arm Cortex-M33 processor to remain in a deep sleep mode while still monitoring sensor interfaces.

Neil Tyler

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