The new ONsemi RSL15 is an ultra low-power secure Arm Cortex M33 processor based wireless MCU with Bluetooth Low Energy 5.2, designed for connected smart devices applications that require embedded security with Root of Trust. With built-in power management, a wide supply voltage range, flexible GPIO and clocking scheme and an extensive set of peripherals, the RSL15 offers maximum design flexibility for high performance and ultra-low-power applications. The RSL15 includes 80 kB RAM and is available in 284 kB or 512 kB Flash options.
The new solution is supported by a comprehensive Software Development Kit (SDK) that contains drivers, libraries, sample code, development tools and mobile apps for iOS and Android.
To validate energy efficiency, the RSL15 was certified by the Embedded Microprocessor Benchmark Consortium (EEMBC). The organization’s ULPMark-CoreMark benchmark program measures the energy efficiency of microcontrollers used in embedded systems while active. The RSL15 now leads its class by attaining a ‘performance’ score of 60.5. Within the ULPMark- CoreProfile benchmark, which calculates the deep sleep efficiency of MCUs, onsemi has also maintained the top two placements with the RSL10 and RSL15 respectively.
"From beacons for contact tracing to trackable asset tags, there are millions of connected devices globally operating off of small batteries," says Patrick Moorhead, CEO, founder and chief analyst at Moor Insights & Strategy. "By setting a new record in Bluetooth 5.2 energy efficiency in the EEMBC ULPMark CoreMark program, the RSL15 will help these applications, amongst many others, achieve a battery life greater than they ever thought to be possible."
While preserving its state-of-the-art power consumption, the RSL15 is designed with Arm TrustZone 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 ability to protect against cyber threats is an essential differentiator for manufacturers choosing a wireless microcontroller for industrial IoT applications,” says Michel De Mey, vice president of the industrial solutions division at onsemi. "With its advanced system-level security features and class-leading energy efficiency, the RSL15 provides a comprehensive wireless solution that OEMs and consumers can rely on."
The RSL15 supports a number of new capabilities provided by the Bluetooth 5.2 specification, including longer range, higher data transmissions and localization through angle of arrival (AoA) and angle of departure (AoD). onsemi has also developed an innovative smart sensing feature that allows the Arm Cortex-M33 processor to remain in a deep sleep mode while still monitoring sensor interfaces. With these advanced new features, the RSL15 will continue the success of the RSL10 radio family, which has been integrated into a variety of industrial automation applications including connected asset tracking, smart retail and IoT edge nodes.
The RSL15 is available now in a miniature 40-pin QFN package and is now sampling for developers.
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