BL54LM20A Series - Bluetooth LE + 802.15.4 + NFC

The BL54LM20A series builds on the proven foundation of Ezurio’s BL54L family, delivering greater memory capacity, USB interface, expanded I/O, and enhanced interface flexibility, while maintaining ultra-low-power performance, industrial robustness, and advanced security. Powered by the Nordic's nRF54LM20A SoC, our compact BL54LM20A modules deliver secure and robust Bluetooth LE and 802.15.4 with flexible programming via the Nordic nRFConnect SDK, Zephyr RTOS and Canvas.

BL54LM20A modules feature a 128 MHz Arm Cortex-M33 processor and a 128 MHz RISC-V coprocessor. With 2 MB non-volatile memory and 512 KB RAM, the BL54LM20A supports ample headroom for larger applications, richer protocol combinations, and long-term product scalability.

The BL54LM20A exposes a significantly larger GPIO set compared to earlier BL54L variants, enabling:

• More sensors and peripherals
• Advanced human-interface devices
• Gateway-class and controller-style designs

High-speed peripherals are supported via the RISC-V coprocessor, alongside a rich set of low-leakage peripherals including timers, ADC, PWM, QDEC, I2S, and NFC. It supports Bluetooth features like Channel Sounding, LE Secure Connections, Extended Advertising, and more. 

It’s further enhanced with state-of-the-art security and is designed for PSA Certified level 3 and supports services such as Secure Boot, Secure Firmware Update, Secure Storage plus protection from physical attacks.