On Semiconductor RSL10

Name: On Semiconductor RSL10
Brand: On Semiconductor RSL10

Industry-lowest power Bluetooth 5 radio and multi-protocol SoC.

hardwareDevelopment BoardsBluetooth 5Ultra-Low PowerIoT

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Our Verdict

Best for

IoT developers building energy-harvesting and ultra-low power Bluetooth 5 devices.

Skip if

Engineers needing large onboard flash or simple custom firmware development.

What is On Semiconductor RSL10?

The ON Semiconductor RSL10 is an advanced ultra-low power Bluetooth 5 certified multi-protocol System-on-Chip (SoC). Designed for resource-constrained IoT applications, it provides industry-leading energy efficiency during both active and sleep modes, making it ideal for energy-harvesting and long-life battery-powered devices. Equipped with an ARM Cortex-M33 processor and a dedicated dual-core architecture, the RSL10 delivers robust processing capabilities alongside flexible peripheral options. It supports a comprehensive software development kit (SDK) with tools for mobile application integration, firmware updates over-the-air (FOTA), and advanced sensor integration.

SpecificationsAI-estimated

weight0.1g

warranty1 year

dimensions6 x 6 mm (QFN package)

open source❌ No

connectivityBluetooth 5.0, 2.4 GHz proprietary

power sourceBattery

Key Features of On Semiconductor RSL10

Features industry-leading ultra-low power consumption, consuming just 62.5 nW in Deep Sleep mode and 7 mW peak receiving power.

Fully certified Bluetooth 5 radio supports data rates up to 2 Mbps and long-range operation.

Integrated ARM Cortex-M33 processor provides efficient application execution alongside a flexible dual-core architecture.

Supports energy-harvesting technologies, enabling batteryless IoT devices powered by solar, thermal, or kinetic sources.

Includes support for Firmware Over-The-Air (FOTA) updates to securely maintain and upgrade deployed devices remotely.

Provides comprehensive peripheral sets including GPIOs, ADC, SPI, I2C, and UART interfaces for seamless sensor integration.

Incorporates sophisticated security features including an AES-128 encryption accelerator to protect sensitive data transmissions.

Use Cases for On Semiconductor RSL10

Wearable Health Monitors

Powers medical and fitness wearables that require multi-day or multi-week battery life from compact cells.

Smart Home Sensors

Enables batteryless or long-life wireless environmental sensors deployed throughout a smart building.

Asset Tracking

Tracks high-value goods in transit using energy-efficient beaconing and Bluetooth proximity detection.

Industrial Automation

Connects industrial monitoring equipment in remote or hazardous locations where battery replacement is difficult.

Pros & Cons of On Semiconductor RSL10

Pros

Industry-leading low power consumption
Support for energy harvesting applications
Bluetooth 5 and multi-protocol capabilities
Robust hardware security features

Cons

Steeper learning curve for custom firmware development
Limited onboard flash compared to larger microcontrollers
Requires specialized development boards for optimal evaluation

Frequently Asked Questions

What wireless protocols does the RSL10 support?

The RSL10 supports Bluetooth 5 Low Energy as well as proprietary 2.4 GHz wireless protocols.

Can the RSL10 operate without a battery?

Yes, the extremely low power consumption of the RSL10 enables it to run entirely on energy-harvesting sources such as solar or thermal generators.

What is the primary processing core inside the RSL10?

The SoC is built around an ARM Cortex-M33 processor core optimized for embedded IoT applications.

Are software development kits available for the RSL10?

Yes, ON Semiconductor provides a comprehensive IDE and SDK supporting Eclipse-based development and mobile companion apps.

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