nRF54LM20
The flagship nRF54L series SoC built on a 22nm process, featuring a 128 MHz ARM Cortex-M33 + RISC-V co-processor with 2MB Flash and 512KB RAM — the largest memory in the nRF54L family. Supports Bluetooth LE, Matter, Thread, Zigbee, and 2.4 GHz proprietary protocols up to 4 Mbps. The nRF54LM20A variant adds 66 GPIOs and high-speed USB; the nRF54LM20B adds an integrated Axon NPU for hardware-accelerated Edge AI inference. Security includes TrustZone, CRACEN cryptographic engine with side-channel protection, and tamper detection.
prj.conf, CMakeLists.txt, Devicetree overlays) targeting this MCU.The flagship nRF54L series SoC built on a 22nm process, featuring a 128 MHz ARM Cortex-M33 + RISC-V co-processor with 2MB Flash and 512KB RAM — the largest memory in the nRF54L family. Supports Bluetooth LE, Matter, Thread, Zigbee, and 2.4 GHz proprietary protocols up to 4 Mbps. The nRF54LM20A variant adds 66 GPIOs and high-speed USB; the nRF54LM20B adds an integrated Axon NPU for hardware-accelerated Edge AI inference. Security includes TrustZone, CRACEN cryptographic engine with side-channel protection, and tamper detection.
Specifications
| Spec | Value |
|---|---|
| Flash | 2MB |
| Ram | 512KB |
| Core | ARM Cortex-M33 + RISC-V |
| MaxClock | 128 MHz |
| Gpio | 66 |
| ProcessNode | 22nm |
Wireless Protocols
ble, 802.15.4, matter, thread, zigbee, 2.4ghz-proprietary
Hardware Features
arm-cortex-m33, risc-v, axon-npu, edge-ai, ultra-low-power, cracen-security, trustzone, tamper-detection, high-speed-usb, adc, pwm, spi, i2c, uart
Vendor
Nordic Semiconductor — SDKs: nRF Connect SDK, Zephyr RTOS
Recommended Use Cases
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Medical Wearable
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Ready-Made Solutions
nRF54L10
Mid-range nRF54L series SoC combining ARM Cortex-M33 with a RISC-V co-processor. 1MB Flash and 128KB RAM with BLE 5.4, targeting wearables and connected sensors.
nRF7000
Ultra-low-power single-band Wi-Fi 6 companion IC. Designed for the most cost-sensitive connected IoT products needing basic Wi-Fi alongside a Nordic BLE host SoC.