nRF54LS05A System-on-Chip

Entry-level, ultra-low-power Bluetooth LE SoC

The nRF54L Series offers SoCs that combine an efficient MCU with ultra-low-power wireless connectivity. The nRF54LS05A and the larger-RAM option nRF54LS05B feature a Bluetooth LE radio and an entry-level peripheral set making them suitable as a main MCU for simple products such as, sensors, tags, beacons, remotes, and PC peripherals, as well as a Bluetooth companion device in larger systems alongside a larger MCU.

nRF54LS05A supports Bluetooth LE and 2.4 GHz proprietary protocols with data rates up to 4 Mbps for low-latency applications.

Performance highlights (preliminary)

  • Processing efficiency and performance: 250 CoreMark/mA (@ 3 V), 500 CoreMark®
  • Radio power consumption: 3.4 mA for RX and 4.8 mA for TX @ 0 dBm (@ 3 V)
  • Sleep modes  power consumption : from 0.6 μA to 1.2 μA (@ 3 V)
  • Maximum TX power: +4 dBm 
  • Sensitivity: -96 dBm (1M Bluetooth LE)


Key benefits

  • Reduced design complexity, size, and cost
  • Reliable and robust Bluetooth LE radio and stack
  • Extended battery life
  • SDK support with Bare Metal option to ease migration from nRF52 Series
  • Enables design flexibility with pin-to-pin compatible SoCs in the series
  • nRF Cloud support for device management, FOTA and more


The nRF54L Series

Key features
  • 128 MHz Arm® Cortex®-M33
  • 0.5 MB NVM and 64 KB RAM
  • Ultra-low-power 2.4 GHz radio
  • 3x SPI/TWI/UART
  • ADC, PWM and QDEC
  • Global RTC available in System OFF
  • Baseline security configuration designed to support compliance with regulatory requirements
  • Package options: QFN48
Documentation
Datasheet

Development kits

Evaluate and develop with nRF54LS05A and nRF54LS05B

nRF54LS05 DK

Affordable, versatile development kit for evaluating and developing with the nRF54LS05A and nRF54LS05B Bluetooth LE SoCs.

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DevAcademy

nRF54L Series Express Course

nRF54L Series Express is a self-paced online course that gives you a deep dive into Nordic Semiconductor’s latest ultra-low-power, high-performance SoCs. 

You’ll explore

  • nRF54L Series architecture
  • Processor features
  • Peripherals
  • Power management
  • Security
  • Supported wireless protocols
  • Reference hardware

                                                             

                                                                                     

No hardware is required to complete the course, but an optional hands-on final lesson lets you test power consumption and performance in real-world scenarios.

DevAcademy

Designing Low-Power Bluetooth LE Products

Designing Low-Power Bluetooth LE Products is a hands-on course focused on building Bluetooth LE products for minimal power consumption and extended battery life. 

You’ll explore

  • Power budgeting
  • Power measurement tools and techniques
  • Software optimizations
  • Clock sources 
  • Power saving features
  • Power Management ICs
  • Remote monitoring with nRF Cloud

                                                             

                                                                                     

To get the most out of this course, we recommend using an nRF54L15 DK, a Power Profiler Kit II (PPK2), and an nPM2100 EK. The course also supports the nRF54LM20 DK, nRF54LS05 DK, and nRF54LV10 DK.