Bluetooth Low Energy MCU provides integrated solution for smart connected devices

RSL15 from onsemi protects connected devices with a comprehensive set of advanced security functions including TrustZoneĀ® support and root-of-trust.

The RSL15 from onsemi, a secure low-power wireless microcontroller which implements BluetoothĀ® Low Energy 5.2 networking, provides a complete set of control and connectivity functions for smart devices in industrial and medical applications.Ā 

Based on an ArmĀ® CortexĀ®-M33 processor core, the RSL15 features built-in power management, a wide supply-voltage range suitable for coin cells, a flexible set of GPIOs, and an extensive set of peripherals. The RSL15 includes 80 kbytes of RAM. Flash memory options are 284 kbytes or 512 kbytes.

The RSL15 is backed by a comprehensive but easy-to-use software development kit (SDK) which provides sample applications to demonstrate the MCUā€™s hardware capabilities. Other features of the SDK include a cybersecurity platform, a low-power Smart Sense mode for acquiring sensor data, and tools for configuring the power management functions and to select Bluetooth Low Energy features.

onsemi has ensured that connected devices based on the RSL15 are safe from cyber-attack. The RSL15 provides a comprehensive mix of security capabilities, including Arm TrustZone technology, which provides trusted execution environments for at-risk peripherals and functions. The RSL15 also features Arm CryptoCellā„¢-312 technology to provide root-of-trust and additional security mechanisms such as:Ā 

  • True random number generator
  • Standard encryption accelerators
  • Support for a wide range of encryption algorithms, including:
    • AES 128/192/256
    • SHA
    • Support for public key infrastructure
    • Elliptic curve cryptography
    • Message authenticationĀ 
  • Secure boot embedded in hardware ROM
    • Hardware-based root-of-trust using secrets stored in dedicated hardware
    • Managed life cycle model
  • Secure key storage
  • Secure debug controlled with certificates

The RSL15 supports capabilities provided by the Bluetooth 5.2 specification, including long range, higher data transmissions, and localization through detection of the angle of arrival and angle of departure of wireless transmissions.Ā 

The low power consumption of the RSL15 has been verified by the Embedded Microprocessor Benchmark Consortium. The MCU achieved a score of 60.5 on its ULPMarkā„¢-CoreMark benchmark in the performance category, the best in its class. On the ULPMark-CoreProfile benchmark, which calculates the deep-sleep efficiency of MCUs, the RSL15 holds second place, only behind the onsemi RSL10 wireless MCU.

Buy now Datasheet