nRF54LM20A System-on-Chip

Ultra-low-power wireless SoC

The nRF54L Series offers SoCs that combine an efficient MCU with ultra-low-power wireless connectivity. The nRF54LM20A provides the largest memory option in the series, with 2 MB NVM and 512 KB RAM. It features an extended set of peripherals, high-speed USB, and is available with up to 66 GPIOs.

nRF54LM20A supports Bluetooth LE, Matter, Thread, Zigbee, and 2.4 GHz proprietary protocols with data rates up to 4 Mbps for low-latency applications. It also supports Bluetooth Channel Sounding, Bluetooth Mesh, and Wi-Fi with nRF70 Series companion ICs.

Performance highlights

  • Processing efficiency and performance: 193 CoreMark/mA @ 3 V, 503 CoreMark®
  • Radio power consumption: 3.3 mA for RX and 5.0 mA for TX @ 0 dBm (@ 3 V)
  • Sleep modes power consumption: from 0.7 μA to 4.3 μA (@ 3 V)
  • Maximum TX power: +8 dBm (CSP) / +7 dBm (QFN) 
  • Sensitivity: -96 dBm (1M Bluetooth LE), -101 dBm (802.15.4)
  • Optimized for the lowest total average current


Key benefits

  • Reduced design complexity, size, and cost
  • Reliable and robust wireless connectivity
  • Extended battery life enabled by lower power consumption
  • Built-in security features supporting compliance with regulations
  • Broad range of MCU feature sets across the series
  • nRF Cloud support for device management, FOTA and more


The nRF54L Series

 
Key Features
  • 128 MHz Arm® Cortex®-M33
  • 2 MB NVM and 512 KB RAM
  • Ultra-low-power multiprotocol 2.4 GHz radio
  • 1x High-speed SPI/UART
  • 6x SPI/TWI/UART
  • High-speed USB
  • ADC, TDM, PDM, NFC, PWM, and QDEC
  • Global RTC available in System OFF
  • 128 MHz RISC-V coprocessor with support for SoftPeripherals
  • Up to 66 GPIOs
  • TrustZone® isolation, tamper detection, and cryptographic engine with side-channel leakage protection
  • Package options: CSP98, CSP61, QFN52

nRF54LM20A launch Video

Expanding nRF54L Series | Meet nRF54LM20A

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.

nRF54L Series overview

nRF54L_Logo_nobg_RGB.png

The nRF54L Series is the successor of the popular nRF52 Series and takes it to the next level
Built on experience from the successful nRF52 Series - shipped in the billions and trusted by thousands of developers - the nRF54L Series is set to be a strong successor. The nRF54L Series enables creation of innovative IoT products. It simplifies design challenges, ensures reliable wireless communication, delivers higher processing performance, and enables significantly expanded battery life.

nRF54L Series block diagram with logos 

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 low-leakage 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 comer together 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.

The nRF54L Series 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. Wi-Fi companion ICs from the nRF70 Series are compatible with the nRF54LM20A, nRF54LM20B, and nRF54L15, expanding wireless connectivity options for your product.

In addition to standardized protocols, the nRF54L Series supports the implementation of proprietary 2.4 GHz protocols with the new 4 Mbps mode with higher throughput and lower latency.

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.

Edge AI enables a new range of possibilities for wireless products
Neuton models can run on all SoCs from the series. The Axon NPU AI Accelerator is available on the nRF54LM20B.
Read more about performance, and applications for Edge AI.

nRF Cloud Support
All nRF54L Series SoCs work with nRF Cloud, Nordic's chip-to-cloud platform for device management, FOTA updates, remote debugging, and performance monitoring.
Take your project from prototype to production faster. Read more about nRF Cloud.

Integrated peripherals and RISC-V coprocessor
SoCs in the series are equipped with various options of peripheral sets. Most of the SoCs support high-speed serial interfaces. High-speed USB is available on nRF54LM20A and nRF54LM20B. The series also features an ADC supporting up to 14 bits with oversampling for higher-resolution analog sensor measurements. The Global RTC is capable of running in System-OFF mode with current consumption down to 0.8 μA (@ 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, which utilize hardware acceleration for IO, 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 SoCs - comparison

Features and specifications overview
  nRF54LM20A nRF54LM20B nRF54L15 nRF54L10 nRF54L05 nRF54LV10A nRF54LS05A nRF54LS05B
Processor
Processor
128 MHz Arm Cortex-M33
DSP, FPU
128 MHz Arm Cortex-M33
DSP, FPU
128 MHz Arm Cortex-M33
DSP, FPU
128 MHz Arm Cortex-M33
DSP, FPU
128 MHz Arm Cortex-M33
DSP, FPU
128 MHz Arm Cortex-M33
DSP, FPU
128 MHz Arm Cortex-M33
128 MHz Arm Cortex-M33
NVM
NVM
2 MB
2 MB
1.5 MB
1 MB
0.5 MB
1 MB
0.5 MB
0.5 MB
RAM
RAM
512 KB
512 KB
256 KB
192 KB
96 KB
192 KB
64 KB
96 KB
Bluetooth LE
Bluetooth LE
Bluetooth Channel Sounding
Bluetooth Channel Sounding
Bluetooth Mesh
Bluetooth Mesh
Thread, Zigbee (IEEE 802.15.4)
Thread, Zigbee (IEEE 802.15.4)
Matter
Matter
Aliro
Aliro
Amazon Sidewalk
Amazon Sidewalk
ESB and 2.4 GHz proprietary protocols (4M, 2M, 1M)
ESB and 2.4 GHz proprietary protocols (4M, 2M, 1M)
NFC
NFC
Wi-Fi (with nRF70 Series companion IC)
Wi-Fi (with nRF70 Series companion IC)
TX power
TX power
8 dBm (CSP)
7 dBm (QFN)
8 dBm (CSP)
7 dBm (QFN)
8 dBm (CSP)
7 dBm (QFN)
7 dBm
7 dBm
4 dBm
4 dBm
4 dBm
RX sensitivity (1 Mbps Bluetooth LE)
RX sensitivity (1 Mbps Bluetooth LE)
-96 dBm
-96 dBm
-96 dBm
-96 dBm
-96 dBm
-97 dBm
-96 dBm
-96 dBm
RX sensitivity (IEEE 802.15.4)
RX sensitivity (IEEE 802.15.4)
-101 dBm
-101 dBm
-101 dBm
-101 dBm
-101 dBm
-101 dBm
AI accelerator
AI accelerator
Yes
128 MHz Axon NPU
RISC-V coprocessor
RISC-V coprocessor
Yes
128 MHz, with IO acceleration
Yes
128 MHz, with IO acceleration
Yes
128 MHz, with IO acceleration
Yes
128 MHz, with IO acceleration
Yes
128 MHz, with IO acceleration
Yes
128 MHz
Digital interfaces
Digital interfaces
High‑speed USB, High‑speed SPI/UART, 6x SPI/UART/TWI, PDM, TDM, PWM, QDEC
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
3x SPI/UART/TWI
3x SPI/UART/TWI, PWM, QDEC
3x SPI/UART/TWI, PWM, QDEC
ADC
ADC
8ch, 10‑bit at 2 MS/s, 14‑bit with oversampling
8ch, 10‑bit at 2 MS/s, 14‑bit with oversampling
8ch, 10‑bit at 2 MS/s, 14‑bit with oversampling
8ch, 10‑bit at 2 MS/s, 14‑bit with oversampling
8ch, 10‑bit at 2 MS/s, 14‑bit with oversampling
8ch, 10‑bit at 1 MS/s, 14‑bit with oversampling
4ch, 10‑bit at 1 MS/s, 14‑bit with oversampling
4ch, 10‑bit at 1 MS/s, 14‑bit with oversampling
Isolation
Isolation
TrustZone
TrustZone
TrustZone
TrustZone
TrustZone
TrustZone
Cryptographic accelerator and tamper detectors
Cryptographic accelerator and tamper detectors
Software cryptographic services
Tamper detection on Debug Access Port
Software cryptographic services
Tamper detection on Debug Access Port
Operating temperature
Operating temperature
-40 to +85 ºC
-40 to +85 ºC
-40 to +105 ºC
-40 to +105 ºC
-40 to +105 ºC
-40 to +85 ºC
-40 to +85 ºC
-40 to +85 ºC
Supply and GPIO voltage range
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
1.7 to 3.6 V
1.2 to 1.7 V
1.7 to 3.6 V
1.7 to 3.6 V
CSP packages
CSP packages
CSP98 with 66 GPIOs
CSP61 with 40 GPIOs
CSP98 with 66 GPIOs
CSP61 with 40 GPIOs
CSP47 with 32 GPIOs
CSP29 with 12 GPIOs
QFN packages
QFN packages
QFN52 with 32 GPIOs
QFN52 with 32 GPIOs
QFN52 with 35 GPIOs
QFN48 with 31 GPIOs
QFN40 with 24 GPIOs
QFN52 with 35 GPIOs
QFN48 with 31 GPIOs
QFN40 with 24 GPIOs
QFN52 with 35 GPIOs
QFN48 with 31 GPIOs
QFN40 with 24 GPIOs
QFN48 with 31 GPIOs
QFN48 with 37 GPIOs
QFN48 with 37 GPIOs

nRF54L Series SoCs - packages and availability

Package details, availability status, and pin-to-pin compatibility
  nRF54LM20A FCCSP SoC_3.85x3.67_SoC_stacked.png nRF54LM20A_CSP61_3.02x2.43_stacked.png nRF54LM20A QFN52 SoC_6x6_SoC_stacked.png nRF54LM20B_FCCSP_SoC_stacked nRF54LM20B_CSP61_3.02x2.43_stacked.png nRF54LM20B_QFN52_SoC_stacked nRF54L15_WLCSP300_2.4x2.2_stacked_web.png nRF54L15_QFN52_6x6_stacked_web.png nRF54L15_QFN48_6x6_stacked_web.png nRF54L15_QFN40_5x5_stacked_web.png nRF54L10_QFN52_6x6_stacked_web.png nRF54L10_QFN48_6x6_stacked_web.png nRF54L10_QFN40_5x5_stacked_web nRF54L05_QFN52_6x6_stacked_web nRF54L05_QFN48_6x6_stacked_web.png nRF54L05_QFN40_5x5_stacked_web nRF54LV10A_WLCSP_1.93x2.29_stacked nRF54LV10A_QFN48_6x6_SoC_stacked nRF54LS05A_QFN48_6x6_stacked.png nRF54LS05B_QFN48_6x6_stacked.png
  nRF54LM20A nRF54LM20A nRF54LM20A nRF54LM20B nRF54LM20B nRF54LM20B nRF54L15 nRF54L15 nRF54L15 nRF54L15 nRF54L10 nRF54L10 nRF54L10 nRF54L05 nRF54L05 nRF54L05 nRF54LV10A nRF54LV10A nRF54LS05A nRF54LS05B
Package
Package
CSP98
CSP61
QFN52
CSP98
CSP61
QFN52
CSP47
QFN52
QFN48
QFN40
QFN52
QFN48
QFN40
QFN52
QFN48
QFN40
CSP29
QFN48
QFN48
QFN48
Availability
Availability
Mass production
Early sampling
Early sampling
Mass production
Early sampling
Early sampling
Mass production
Mass production
Mass production
Early sampling
Mass production
Mass production
Early sampling
Mass production
Mass production
Early sampling
Early sampling
Early sampling
Early sampling
Early sampling
Dimentions
Dimentions
3.67 x 3.85 mm
3.02 x 2.43 mm
6 x 6 mm
3.67 x 3.85 mm
3.02 x 2.43 mm
6 x 6 mm
2.45 x 2.25 mm
6 x 6 mm
6 x 6 mm
5 x 5 mm
6 x 6 mm
6 x 6 mm
5 x 5 mm
6 x 6 mm
6 x 6 mm
5 x 5 mm
1.93 x 2.29 mm
6 x 6 mm
6 x 6 mm
6 x 6 mm
Height
Height
0.61 mm
0.43 mm
0.85 mm
0.61 mm
0.43 mm
0.85 mm
0.42 mm
0.85 mm
0.85 mm
0.85 mm
0.85 mm
0.85 mm
0.85 mm
0.85 mm
0.85 mm
0.85 mm
0.48 mm
0.85 mm
0.85 mm
0.85 mm
Pitch
Pitch
0.35 mm
0.325 mm
0.4 mm
0.35 mm
0.325 mm
0.4 mm
0.3 mm
0.4 mm
0.4 mm
0.4 mm
0.4 mm
0.4 mm
0.4 mm
0.4 mm
0.4 mm
0.4 mm
0.35 mm
0.4 mm
0.4 mm
0.4 mm
Pins / Balls
Pins / Balls
98
61
52
98
61
52
47
52
48
40
52
48
40
52
48
40
29
48
48
48
GPIOs
GPIOs
66
40
32
66
40
32
32
35
31
24
35
31
24
35
31
24
12
31
37
37
Pin-to-pin compatible SoCs (for the same package)
Pin-to-pin compatible SoCs (for the same package)
nRF54LM20B
nRF54LM20B
nRF54LM20B
nRF54LM20A
nRF54LM20A
nRF54LM20A
nRF54L10, nRF54L05
nRF54L10, nRF54L05
nRF54L10, nRF54L05, nRF54LS05A*, nRF54LS05B*

* with limitations
nRF54L10, nRF54L05
nRF54L15, nRF54L05

nRF54L15, nRF54L05, nRF54LS05A*, nRF54LS05B*

* with limitations

nRF54L15, nRF54L05
nRF54L15, nRF54L10
nRF54L15, nRF54L10, nRF54LS05A*, nRF54LS05B*

* with limitations
nRF54L15, nRF54L10
nRF54LS05B, nRF54L05*, nRF54L10*, nRF54L15*

* with limitations
nRF54LS05A, nRF54L05*, nRF54L10*, nRF54L15*

* with limitations

Compatible PMICs

Power Management ICs