BM20C,BM20E,BM20M,BM20XE nRF54LM20A/B Bluetooth 6.0 Thread, Zigbee Modules

nRF54LM20A and nRF54LM20B BLE 6.0 Modules

BM20C Series modules use Nordic nRF54LM20A or nRF54LM20B BLE 6.0 SoC with a Cortex M33 MCU at 128 MHz. Both 32 MHz and 32.768 kHz, -40C to +105C, 20PPM crystals are integrated. DCDC converter Inductors and capacitors for VDD are integrated. No external component is required.

nRF54LM20B has an embedded Axon NPU, an inference engine to process sensor data at the edge. It can reduce power consumption for transmitting data to the cloud and reduce the impact of unreliable cloud connection.

Module Summaries
BM20C

• Size 10.0x15.0x2mm

• Chip antenna.

BM20E

• Size 10.0x15.0x2.0mm

• u.FL for connection to external antenna.

BM20M

• Size 10.0x14.0x2mm

• an integrated PCB antenna.

BM20XE

• Size 10.0x21.0x2mm

• nRF21540 power amplifier

• u.FL for external antenna.

BM20C Series Specifications  

BLE 6.0, IEEE 802.15.4-2006 Transceiver

• Complete RF solution with integrated antenna

• BLE: 2Mbps, 1Mbps (-96 dBm sensitivity), 500kbps, 125kbps (-106 dBm sensitivity).

• IEEE 802.15.4-2006: 250 kbps (-102 dBm sensitivity).

• Proprietary: 4Mbps, 2Mbps, 1Mbps.

• Programmable TX power, -8 dBm +8 dBm.

• Channel sounding for Bluetooth range measurements.

• 128 bit AES/ECB/CCM/AAR co-processor (on-the-fly operation).

• 12.0 mW TX current at 0 dBm, 1Mbps, 1.8V VDD.

• 7.5 mW RX current, 1Mbps, 1.8V VDD.

• Both 32.0 MHz and 32.768 kHz crystals embedded.

• RSSI, 1 dB resolution

Platform Security

• Secure/non-secure memory protection.

• Symmetric and asymmetric key crypto accelerator.

• Secure key management.

• Tamper detection.

• Immutable boot partition.

• Debug access port protection.

• Two watchdog timers for secure and non-secure context.

MCU

• Nordic nRF54L with ARM Cortex M33, 128 MHz.

• Flash/RAM: 2036KB/512KB. 

• 505 EEMAC CoreMark score  running from non-volatile memory, 3.95 CoreMark per MHz.

• Single precision floating point unit (FPU).

• Memory protection unit (MPU).

• Digital signal processing (DSP) instructions.

• Data watchpoint and trace (DWT), embedded trace macrocell (ETM), instrumentation trace macrocell (ITM), and cross trigger interface (CTI).

• Serial Wire Debug (SWD) 

• Trace port interface unit (TPIU), 4-bit parallel trace of ITM and ETM trace data; Serial wire output (SWO) trace of ITM data.

Peripherals

• Two realtime counters (RTC), and one global RTC (GRTC) that can run in System OFF mode and implement a shared system timer.

• Seven 32-bit timers with counter mode.

• Five fully featured serial interfaces with EasyDMA, supporting I2C, SPI controller/peripheral, and UART.

• Three pulse width modulator (PWM) units with Easy DMA.

• I2S two channel inter-IC sound interface.

• 14-bit at 20KS/s, 12 bit at 250KS/s, or 10-bit at 2MS/s ADC with up to eight programmable gain channels.

• Near field communication (NFC).

• Two quadrature decoders (QDEC).

• 90 LGA pins, 66 GPIOs.

• Embedded inductors for DCDC converter   

• 1.7V to 3.6V supply voltage with up to 3.6V I/O voltage.

• Both 32 MHz and 32 KHz crystal embedded.

• Operation temperature: -40°C to +105°C

Certifications

• FCC ID:

• ISED ID:

• Europe:

• Australia and New Zealand:

• Japan TELEC:

• Taiwan NCC:

• QDID:

• Availability: Samples Q4 2025

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