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Ezurio BL54LM20A Multiprotocol Modules

Ezurio BL54LM20A Multiprotocol Modules deliver secure and robust BLUETOOTH® LE and 802.15.4 with flexible programming via the nRF Connect SDK or Canvas software suite. These modules feature a 128MHz ARM® Cortex®-M33 and 128MHz RISC-V coprocessor. The BL54LM20A modules include an extended peripheral set, high-speed USB, up to +8dBm transmit power, and NFC A-Tag implementation. These modules offer 2MB non-volatile memory and 512kB RAM. The BL54LM20A modules are integrated with a pre-certified On-Board chip antenna or support an external antenna via an MHF4 connector. Typical applications include building automation, security, medical peripherals, and industrial sensors.

Features

  • nRF54LM20 series SoC 3.02mm x 2.43mm CAAA61 package with 40 GPIOs utilized
  • BLUETOOTH® LE, 802.15.4 (Thread and Matter) multi-protocol support
  • 128MHz ARM® Cortex®-M33 processor core
  • 128MHz VPR RISC-V co-processor core
  • 2MB non-volatile memory and 512kB RAM
  • Integrated pre-certified on-board chip antenna or external antenna support via MHF4 connector
  • High-speed peripherals:
    • HS-SPI/UART
    • Software-defined peripherals on 128MHz VPR
    • GPIO - 1x 64MHz Port
    • 1.7V to 3.6V
    • 6 GPIOs
  • Qualified against BLUETOOTH® Core 6.0
  • Firmware Over the Air (FOTA) via MCUboot and nRF Connect SDK
  • 11mm x 8mm x 0.6mm ultra-small footprint
  • Low-leakage peripherals:
    • 2x QDEC
    • 7x Timer
    • Global RTC
    • 2x WDT
    • NFC A-Tag
    • TEMP
    • I2S
    • COMP
    • 3x PWM
    • LPCOMP
    • 14-bit 8CH ADC
    • 7x TWI/SPI/UART
    • GPIO (3 x 8MHz Port (P0, P1, P3)
    • 34 GPIOs (1.7V to 3.6V)

Applications

  • Building automation
  • Security
  • Medical peripherals
  • Industrial sensors

Specifications

  • Frequency:
    • 2.402GHz to 2.480GHz for BLUETOOTH® (CH0 to CH39)
    • 2.405GHz to 2.480GHz for IEEE 802.15.4-2020 PHY (CH11 to CH26)
  • Bluetooth Core 6.0:
    • Channel Sounding
    • GATT client and GATT server - any adopted/custom services
    • Central/peripheral roles
    • Mesh networking
    • LE CODED
    • LE 2M
    • LE secure connections
    • Extended advertising
    • LE power control
    • DTM firmware (test modes)
  • 2405MHz to 2480MHz IEEE 802.15.4-2020 compliant:
    • 250kbps, 2450MHz, and O-QPSK PHY
    • Channels 11 to 26. Channel 11 2405MHz and CH26 2480MHz
    • Clear Channel Assessment (CCA)
    • Energy Detection (ED) scan
    • CRC generation
  • Maximum transmit power setting:
    • 8dBm chip antenna (453-00586)
    • 8dBm external antenna connection via on-module IPEX MHF4 (453-00585)

Block Diagram

Block Diagram - Ezurio BL54LM20A Multiprotocol Modules

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发布日期: 2026-09-23 | 更新日期: 2026-09-24