Data Sheet

BMD-341 - Data sheet

UBX-19033643 - R03 Functional description Page 5 of 36

1 Functional description

The BMD-341 is an advanced, highly flexible, ultra-low power multiprotocol SoM that enables

Bluetooth 5 (Bluetooth low energy) and IEEE 802.15.4 (Thread and Zigbee) connectivity for portable,

extremely low power embedded systems. With an ARM® Cortex™-M4F CPU, integrated 2.4 GHz

transceiver, and a U.FL connector for an external antenna, the BMD-341 provides a complete RF

solution allowing faster time to market with reduced development costs. Providing full use of the

Nordic Semiconductor nRF52840 capabilities and peripherals, the BMD-341 can power the most

demanding applications, all while simplifying designs and reducing BOM costs. The BMD-341 is an

ideal solution for designs that require the latest Bluetooth 5 features or 802.15.4 based networking

for Thread. Increased integration with built in USB and 5.5V compatible DC/DC supply reduces design

complexity and BOM cost, while expanding possible applications. BMD-341 designs are footprint

compatible with the BMD-300/301/330/360, providing low-cost flexibility for tiered product lineups.

1.1 Features

 Based on the Nordic Semiconductor nRF52840 SoC

 Bluetooth 5 2M low energy, Advertising Extensions, CSA #2, Coded PHY (Long Range)

 Bluetooth mesh

 IEEE 802.15.4 with Thread and Zigbee support

 Complete RF solution with U.FL connector for an external antenna

 Integrated DC-DC converter

 No external components required

 ARM® Cortex™-M4F 32-bit processor

 ARM® TrustZone® Cryptocell 310 security

 True random number generator

 Serial Wire Debug (SWD)

 Nordic Semiconductor SoftDevice ready

 1 MB embedded flash memory

 256 KB RAM

 48 General Purpose I/O Pins

 12-bit/200 KSPS ADC

 One Full-Speed USB (12 Mbps)

 Four SPI Master/Slave (8 Mbps)

 Quad SPI with Execute in Place (XIP)

 Low power comparator

 Temperature sensor

 Two 2-wire Master/Slave (I2C compatible)

 I2S audio interface

 Two UARTs (w/ CTS/RTS and DMA)

 20 channel CPU independent Programmable Peripheral Interconnect (PPI)

 Quadrature Demodulator (QDEC)

 128-bit AES HW encryption

 5 x 32 bit, 3 x 24 bit Real Timer Counters (RTC)

 NFC-A tag interface for OOB pairing

 Dimensions: 15.0 x 10.2 x 1.9 mm