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nRF54L05 System-on-Chip

Ultra-low-power wireless SoC

The nRF54L05 is part of the nRF54L Series, together with the nRF54LM20AnRF54L15 and nRF54L10. All wireless SoCs in the nRF54L Series integrate an ultra-low-power multiprotocol 2.4 GHz radio and MCU (Microcontroller Unit) functionality, featuring a 128 MHz Arm Cortex-M33 processor and comprehensive peripheral set. The series offers a selection of packages and memory size options with pin-to-pin compatible QFN packages.

Nordic’s proprietary technologies, such as low-leakage RAM and advanced multiprotocol radio design, enable ultra-low power consumption, reducing battery size or increasing lifetime.

nRF54L05 is suitable for products using Bluetooth Low Energy, Bluetooth MeshThread, Zigbee, and proprietary 2.4 GHz protocols.

It features the smallest memory option in the series, 0.5 MB NVM and 96 KB RAM, optimized for the most cost-sensitive applications. nRF54LM20A, nRF54L15, and nRF54L10 can support more features and wireless protocols

Key features
  • Ultra-low-power multiprotocol 2.4 GHz radio
  • Integrated multi-purpose MCU functionality
  • 128 MHz Arm Cortex-M33 processor
  • 0.5 MB NVM and 96 KB RAM
  • Comprehensive set of peripherals, including new Global RTC available in System OFF, 14-bit ADC, and high-speed serial interfaces
  • Secure boot, secure firmware update, secure storage
  • Cryptographic accelerator with side-channel leakage protection, tamper detectors

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.

nRF54L Series overview

nRF54L_Logo_nobg_RGB.png

The next-generation of wireless SoCs, taking the popular nRF52 Series to the next level
Built on the experience from the successful nRF52 Series—shipped in the billions and trusted by thousands of developers—the nRF54L Series is set to be a worthy successor. The nRF54L Series enables the creation of innovative next-generation IoT products. It simplifies design challenges and ensures reliable wireless communication while raising the bar on achievable battery lifetime.

graphical user interface, diagram 

Integrated multi-purpose MCU with 2x processing power and 3x processing efficiency
All nRF54L Series SoCs integrate MCU functionality with an Arm Cortex-M33 processor running at 128 MHz, doubling the processing power of the nRF52840 while tripling processing efficiency. This enables improved functionality of end-products with even lower power consumption. The nRF54L Series provides this outstanding processing performance with Nordic’s proprietary technologies, a unique design approach, and pioneering progression to the 22nm process node.

New ultra-low-power 2.4 GHz radio with lower power consumption
The nRF54L Series radio, combined with an efficient MCU, enables significantly lower power consumption for typical Bluetooth LE use cases, both when advertising and in connections, compared to the nRF52840. To evaluate the power savings that may be achieved in your application, experiment with the Online Power Profiler. These improvements in power consumption are enabled along with up to 8 dBm TX power and -96 dBm RX sensitivity.

Supported protocols
nRF54L Series supports Bluetooth LE, including Channel Sounding introduced in Bluetooth 6.0 core specification. The standard and additional Bluetooth Low Energy features are supported, including the networking capabilities of Bluetooth Mesh with accompanying Bluetooth NLC (Networked Lighting Control) profiles, and Bluetooth PAwR (Periodic Advertising with Responses) with the ESL profile. nRF54L wireless SoCs are multiprotocol, supporting Matter and IEEE 802.15.4 based protocols, including Thread and Zigbee, which can be used together with Bluetooth LE for use cases such as secure provisioning or DFU. Ecosystems such as Amazon Sidewalk, Google Find Hub (previously Google Find My Device), and Apple Find My are supported and available with the nRF Connect SDK. In addition to standardized protocols, the nRF54L Series supports the implementation of proprietary 2.4 GHz protocols with the new 4 Mbps mode. Additionally, the nRF54LM20A and nRF54L15 can run a Wi-Fi stack for the companion ICs from the nRF70 Series.

Advanced security features with physical protection
With more IoT security regulations, customers increasingly recognize the value of security. The nRF54L Series enables secure products, integrating features such as secure boot, secure firmware update, secure storage, a trusted execution environment enabled by TrustZone, and a cryptographic accelerator. These features, alongside side-channel leakage protection and tamper detectors, fulfill essential and rigorous security requirements.

Integrated peripherals and RISC-V coprocessor
All SoCs in the series are equipped with an extended set of peripherals and high-speed serial interfaces, and the nRF54LM20A supports high-speed USB. The series also features a 14-bit ADC for higher resolution analog sensor measurements and a Global RTC capable of running in System-OFF with current consumption down to 0.8 uA (@ 3.0 V). An integrated RISC-V is designed to handle additional time-critical tasks, offload workload from the main processor, or implement low-level custom protocols. It can also run SoftPeripherals, the emulated peripherals using hardware acceleration of the I/O, such as sQSPI. In some cases, the integrated coprocessor can replace an external MCU used to solve these kinds of requirements.

Design flexibility with pin-to-pin compatible package variants
nRF54L Series SoCs provide various memory size options, ultra-compact CSP packages and QFN packages with pin-to-pin compatible options for selected SoCs. The selection of options, matching various requirements, makes the nRF54L Series an ideal fit for high-volume and cost-sensitive products.

Modules
Hardware development can be simplified by choosing a module-based design approach. Bluetooth LE modules and modules for multiprotocol IoT applications such as Matter modules, and modules for Thread and Zigbee are available from Nordic module partners. Modules feature the necessary external circuitry and are either partly or fully qualified (with/without integrated antenna) towards relevant wireless standards. Read more in the 3rd party Modules tab.

nRF54L Series webinar

Exploring the nRF54L Series: Full portfolio and nRF54LM20A introduction

Demo: nRF54L Series vs nRF52 Series

nRF54L Series SoC options

   nRF54LM20A nRF54L15 nRF54L10  nRF54L05 
Processor   128 MHz Arm Cortex-M33 128 MHz Arm Cortex-M33 128 MHz Arm Cortex-M33  128 MHz Arm Cortex-M33 
NVM  2 MB   1.5 MB 1.0MB 0.5MB
RAM   512 KB 256 KB 192 KB 96 KB
Bluetooth LE  Yes Yes Yes Yes
Bluetooth Channel Sounding   Yes Yes Yes Yes
Bluetooth Mesh, Zigbee, Thread   Zigbee, Thread  Yes Yes Yes
Matter, Aliro
Amazon Sidewalk
 Matter, Aliro Matter, Aliro
Amazon Sidewalk
Matter,
Amazon Sidewalk
ESB and 2.4 GHz proprietary protocols (with 4 Mbps)   Yes Yes Yes Yes
NFC   Yes Yes Yes Yes
Wi-Fi (with nRF70 Series companion ICs)   Yes Yes  -
TX power   Up to 8 dBm Up to 8 dBm 7 dBm 7 dBm 
RX sensitivity (1 Mbps Bluetooth LE)   -96 dBm -96 dBm -96 dBm  -96 dBm
RX sensitivity (IEEE 802.15.4)   -101 dBm -101 dBm -101 dBm -101 dBm 
RISC-V coprocessor   128 MHz FLPR 128 MHz FLPR  128 MHz FLPR 128 MHz FLPR 
Digital interfaces  High-speed USB, High-speed SPI/UART, 6x SPI/UART/TWI, PDM, TDM, PWM, QDEC High-speed SPI/UART, 4x SPI/UART/TWI, PDM, I2S, PWM, QDEC High-speed SPI/UART, 4x SPI/UART/TWI, PDM, I2S, PWM, QDEC High-speed SPI/UART, 4x SPI/UART/TWI, PDM, I2S, PWM, QDEC
ADC   8ch, up to 14-bit, up to 2MS/s 8ch, up to 14-bit, up to 2MS/s 8ch, up to 14-bit, up to 2MS/s 8ch, up to 14-bit, up to 2MS/s
Isolation   TrustZone TrustZone TrustZone TrustZone
Cryptographic accelerator and tamper detectors   Yes Yes Yes Yes
Operating temperature    -40 to +85ºC -40 to +105ºC 40 to +105ºC 40 to +105ºC
Supply and GPIO voltage range   1.7 to 3.6 V 1.7 to 3.6 V 1.7 to 3.6 V 1.7 to 3.6 V
 CSP packages   3.9x3.7 mm CSP98 with 66 GPIOs  2.4x2.2 mm CSP47 with 32 GPIOs  -  -
QFN packages  6x6 mm QFN52 with 35 GPIOs

6x6 mm QFN52 with 35 GPIOs
6x6 mm QFN48 with 31 GPIOs
5x5 mm QFN40 with 24 GPIOs

6x6 mm QFN52 with 35 GPIOs
6x6 mm QFN48 with 31 GPIOs
5x5 mm QFN40 with 24 GPIOs
6x6 mm QFN52 with 35 GPIOs
6x6 mm QFN48 with 31 GPIOs
5x5 mm QFN40 with 24 GPIOs

Compatible PMIC and RF FEM options