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Laird Connectivity

 

Ezurio BL54L15/BL54H20 Series Bluetooth LE Modules

A new era of performance

Known for efficiency, security, and extended capabilities, the BL54L15 and BL54H20 series by Ezurio are Bluetooth Low Energy (BLE) modules powered by Nordic Semiconductor's cutting-edge nRF54 silicon. These modules redefine Bluetooth LE and 802.15.4 solutions, delivering advanced processing capabilities, robust security features, and flexible development options for a wide range of applications.

BL54L15 Series: Compact, Powerful, and Secure

The BL54L15 series, built on the Nordic nRF54L15 SoC, offers secure and reliable Bluetooth LE and 802.15.4 connectivity. Featuring a 128MHz ARM Cortex-M33, 128MHz RISC-V coprocessor, 1.5MB non-volatile memory, and 256KB RAM, it provides double the processing power compared to the BL652 series.

Features (BL54L15)

  • Nordic nRF54L15 – 6x6 QFN48 with 31 GPIOs utilized.
  • Antenna choice – integrated pre-certified PCB Trace antenna or external antenna support via MHF4 connector
  • Ultra-small footprint (14 mm x 10 mm x 1.6 mm)
  • Development choice: Canvas Software Suite, Zephyr RTOS or Nordic nRF Connect SDK
  • Firmware Over the Air (FOTA) via MCUboot and Zephyr
  • Hostless operation – Multi Core MCU reduces BOM
  • Fully featured development kits to jump start Bluetooth LE development
  • Mechanically same form factor as BL652 Series

Application

  • Hostless operation and efficient BOM reduction for Bluetooth LE devices

Development Kits

453-00001-K1

Development kit, Module, BL54L15 (Nordic nRF54L15), Trace antenna

453-00044-K1

Development kit, Module, BL54L15 (Nordic nRF54L15), MHF4 Connector

 

BL54H20 Series: High-Performance, Multi-Core Architecture

The Ezurio BL54H20 series pushes the boundaries with its Nordic nRF54H20 SoC, featuring 2x ARM Cortex-M33 cores and 2x RISC-V coprocessors optimized for demanding workloads. With 2MB non-volatile memory, 1MB RAM, and support for Bluetooth 5.4, LE Audio, Bluetooth Mesh, and 802.15.4 protocols (Thread and Matter), it’s ideal for high-performance designs.

Features (BL54H20)

  • Nordic nRF54H20 – 4.7xmm 4.3 WSCLP with 64 GPIOs available.
  • Antenna choice – integrated pre-certified Chip antenna or external antenna support via MHF4 connector – Integrates Ignion NANO NN02-101 chip antenna for radiated efficiency and optimal location flexibility
  • Small form factor: 13.5 x 10 x 1.8 mm
  • Development choice: Canvas Software Suite, Zephyr RTOS, or Nordic nRF Connect SDK
  • Firmware Over the Air (FOTA) via MCUboot and Zephyr
  • Hostless operation – Multi Core MCU reduces BOM
  • Fully featured development kits to jump start Bluetooth LE development

Application

  • Advanced wireless designs with flexible programming via Canvas Software Suite, Zephyr RTOS, or Nordic SDK.

Development Kits

453-00197-K1

Development kit, Module BL54H20 (Nordic nRF54H20), Chip antenna

453-00198-K1

Development kit, Module BL54H20 (Nordic nRF54H20) – MHF4 Connector

Whether you're upgrading from the nRF52 series or building innovative wireless solutions, the BL54L15 and BL54H20 series offer the performance, security, and flexibility to power your next innovation.

453-00197-K1 Development Kit