Data Sheet

BMD-345 - Data sheet
UBX-19039908 - R07 Functional description Page 5 of 36
1 Functional description
The BMD-345 is an advanced, highly flexible, low power multiprotocol System on Module (SoM) that
enables Bluetooth 5 low energy low energy and IEEE 802.15.4 (Thread and Zigbee) connectivity for
portable, low power embedded systems. With an Arm® Cortex®-M4 with FPU processor, integrated
2.4 GHz transceiver, RF power and low noise amplifiers (PA / LNA), and U.FL connector, the BMD-345
provides a full RF solution allowing faster time to market with reduced development costs. Providing
full use of the Nordic Semiconductor nRF52840’s capabilities and peripherals, the BMD-345 can
power the most demanding applications, all while simplifying designs and reducing BOM costs. The
BMD-345 is an ideal solution for designs that require maximum range and Bluetooth 5 features or
802.15.4 based networking for Thread and Zigbee. Increased integration with built in USB and DC/DC
supply reduces design complexity and BOM cost, while expanding possible applications. BMD-345
designs are footprint compatible with the BMD-301, providing low-cost flexibility for tiered product
lineups.
1.1 Features
 Based on the Nordic Semiconductor nRF52840 SoC
 Bluetooth 5 PHYs: LE 1M, LE 2M, and LE Coded (long range)
 Bluetooth 5 features: Advertising Extensions, Channel Selection Algorithm #2
 Bluetooth mesh
 IEEE 802.15.4 with Thread and Zigbee support
 Extended range with PA + LNA
 Complete RF solution with U.FL connector for an external antenna
 Arm® Cortex®-M4 with FPU 32-bit processor
 Arm® TrustZone® Cryptocell 310 security
 128-bit AES HW encryption
 True Random Number Generator
 Serial Wire Debug (SWD)
 Nordic Semiconductor SoftDevice ready
 1 MB embedded flash memory
 256 kB RAM
 44 General Purpose I/O Pins
 −40 °C to +85 °C temperature range12-bit/200 KSPS ADC
 12-bit/200 KSPS ADC
 One Full-Speed USB (12 Mbps)
 Four SPI master / three slave (8 Mbps)
 Quad SPI with Execute in Place (XIP)
 PWM 4 blocks x 4-channels each
 General Purpose and Low power comparators
 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)
 5 x 32 bit timer/counters
 3 x 24 bit Real Timer Counters (RTC)
 NFC-A tag interface for OOB pairing
 Dimensions: 15.0 x 10.2 x 2.0 mm