New Product Introduction

ON Semiconductor RSL10 – Bluetooth® 5 System-on-Chip

Bringing the industry’s lowest power Bluetooth® low energy technology to IoT with a highly flexible multi-protocol 2,4 GHz radio RSL10 from ON Semiconductor

ON Semiconductor RSL10 teaser image

RSL10 is a multi-protocol Bluetooth 5 certified radio System on Chip (SoC) which brings ultra-low-power wireless technology to IoT.
Offering the industry’s lowest power consumption, RSL10 helps provide devices like heart rate monitors with advanced wireless features while optimizing system size and battery life.
Unlike most other multi-protocol radio SoCs, RSL10 is specifically designed for applications using 1.2V and 1.5V batteries, and supports a voltage supply range between 1.1V and 3.3V without a required DC/DC converter. The highly-integrated radio SoC features a dual-core architecture and a 2.4 GHz transceiver, providing the flexibility to support Bluetooth low energy technology and 2.4GHz proprietary or custom protocols.


  • Ultra-Low-Power:
    • Industry's lowest power consumption in Deep Sleep Mode (62.5 nW) and Rx in Receive Mode (7 mW)
    • Industry's best EEMBC® ULPMark™ scores (1090 ULPMark CP @ 3 V; 1260 @ 2.1 V)
  • Advanced Multi-Protocol Wireless Functionality
    • Rx Sensitivity: -94 dBM 
    • Transmitting Power: -17 to +6 dBm 
    • Supports Bluetooth low energy and 2.4 GHz proprietary/custom protocols 
    • Supports Firmware Over The Air (FOTA)
  • Flexible Voltage Supply Range (1.1 and 3.3 V): Supports devices using 1.2 and 1.5 V batteries without a required external DC/DC converter
  • Ultra-Miniature: RSL10 is offered in a 5.50 mm2 WLCSP and a 6 x 6 mm QFN. For added miniaturization, the radio SoC can be integrated into System-in-Package (SiP) solutions which combine RSL10 with a custom ASIC.
  • Sophisticated Dual-Core Architecture: Features a programmable ARM Cortex-M3 processor for clocking speeds up to 48 MHz and the flexibility to support 2.4 GHz proprietary and custom protocol stacks. An embedded Digital Signal Processor (DSP) enables signal processing intensive applications, such as wireless audio codecs.
  • On-Chip and Software Wireless Support: Features a 2.4 GHz Radio Frequency Front-End (RFFE) and a Bluetooth 5 certified baseband controller which supports 2 Mbps data rates. A wide range of supported Bluetooth low energy protocols are provided in the RSL10 development tools kit.
  • Highly-Integrated System-on-Chip (SoC): The powerful dual-core architecture is complemented by high-efficiency power management units, oscillators, flash, and RAM memories, a DMA controller, and peripherals and interfaces.
  • Other Key Technical Features
    • 384 kB of flash memory
    • IP protection feature to secure flash contents 
    • Configurable analog and digital sensor interfaces (GPIOs, LSADs, I2C, SPI, PCM)

Application diagram

ON Semiconductor RSL10 application diagram


  • Wearables
  • IoT Applications
  • Wireless-Enabled Low-Voltage Devices (1.2 V, 1.5 V Batteries Without DC/DC Converter)
  • Automotive


Product / Evaluation Board Description Package
NCH-RSL10-101Q48-ABG Radio SoC, Ultra-Low-Power Multi-protocol Bluetooth® 5 Certified QFN-48
NCH-RSL10-101WC51-ABG Radio SoC, Ultra-Low-Power Multi-protocol Bluetooth® 5 Certified WLCSP-51
RSL10-002GEVB Radio SoC evaluation board, version 1 (QFN based)  


Development tool

The RSL10 development board is used to easily develop Bluetooth® low energy technology-enabled applications based on the industry’s lowest power radio System-on-Chip (SoC).

ON Semiconductor RSL10 development boardKey features

  • Compliance with the Arduino form factor
  • Support for PMOD (e.g., J4 is a standard connector)
  • On-board J-Link feature for simple debugging
  • Alternate on-board SWJ-DP (serial-wire and/or JTAG) for ARM® Cortex® -M3 processor debugging
  • Access to all RSL10 peripherals via standard 0.1" headers
  • On-board 4-bit level translator to translate the LPDSP32 debug interface at a low voltage to a 3.3 V JTAG debugger
  • Antenna matching and filtering network
  • Integrated PCB antenna

Links and documents

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