BC840M, BC840, BC840E Compact nRF52840 Bluetooth 5, Thread, Zigbee Module


BC840, BC840E, BC840M


BC840M Series is an advanced, highly flexible solution for today's increasingly demanding Ultra Low Power and higher throughput applications in the IoT world. Inherent industry-grade security is essential in today's applications, a cryptographic accelerator is embedded.

Three modules in the BC840M Series BLE 5, Thread, Zigbee modules. They have the same features except size and range.

  • BC840M, range 135 meters at 1Mbps; Size, 7.1 (10.1)x12.2x1.5mm.

  • BC840, range 4 meters at 1Mbps; Size, 7.1x9.2x1.5mm

  • BC840E, range with ANT060 antenna, 850 meters at 1Mbps, 3400 meters at 125 kbps; Size, 7.1x12.2x1.8mm.

For a brief description of Bluetooth mesh and its requirements for security, please go to webpage BT840F.

BC840M Advanced Features


  • Bluetooth 5 datarate: 2Mbps, 1Mbps, 500 Kbps, 125 kbps

  • IEEE 802.15.4 Thread and Zigbee

  • ANT/ANT+

  • Nordic 2.4 GHz proprietary

Power Supply

  • 1.7V to 3.6V DC power supply

  • High voltage power supply to accept up to 5.5V DC for direct connection to Lithium batteries or 5V system power. An external voltage regulator is not required. Your total system cost can be lower and your PCB size can be smaller.


  • Embedded CryptoCell 310 co-processor can be used to provide more secure connection and to prevent hacker.

  • BC840M is required if your Bluetooth 5 devices are used in mesh networks with many nodes for desirable performance. Security is mandatory in Bluetooth mesh networks. By offloading decryption, encryption, and authentication works to CryptoCell-310, BC840M Series can deliver high performance in Bluetooth mesh networks.

BC840M Specifications

  • Nordic nRF52840 CKAA (Rev. D silicon) with ARM Cortex M4F.

  • ARM CryptoCell-310 cryptographic co-processor

  • 1MB flash, 256 KB RAM

  • Complete RF solution with integrated antenna

  • Bluetooth range: 400 meters at 125Kbps, estimated.

  • Multiple protocols: BLE, ANT, Thread, Zigbee

  • NFC-A tag interface for Out Of Band pairing

  • 128-bit AES HW encryption

  • Serial Wire Debug (SWD)

  • Nordic SoftDevice Ready

  • Over-The-Air (OTA) firmware update

48 GPIOs, firmware configurable, Peripherals

  • 12 bit/200KSps ADC

  • 3x SPI Master/Slave, 8 Mbps

  • 2x 2-wireMaster/Slave, I2C compatible

  • UART

  • Quadrature Demodulator (QDEC)

  • I2S audio interface

  • Digital microphone interface

  • Peripherals: Temperature sensor, general comparator, Low power comparator, Random Number Generator

  • 20 channel CPU independent Programmable Peripheral Interconnect (PPI)

  • 5 x 32 bits, 3 x 24 bits Real Time Counters (RTC)


  • Operation voltage: 1.7V to 5.5V


  • Operation Temperature: -40°C to +85°C

  • Integrated shield to resist EMI

  • Availability: Production


  • FCC ID: X8WBC840M

  • IC (Industrial Canada) ID: 4100A-BC840M

  • Europe: Certified

  • Japan: TELEC 201-190140

  • Australia: RCM Certified

  • QDID: 108621

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For volume discount and production lead time, please email Fanstel

BC840M, Compact, long range Bluetooth 5, Thread, Zigbee module
from 11.94

BC840M is a compact, long range, nRF52840 CKAA, Bluetooth 5, Thread, Zigbee module

Size is 7.1x12.2x1.5mm, antenna area width is 10.1mm.

$9.95 each at 10-pack; $9.15 each at 100-pack.; $7.96 each at 1K pcs

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BC840, Compact, short range nRF52840 CKAA, BLE 5, Thread, Zigbee module

BC840 is a compact, short range nRF52840 CKAA module.

Size is 7.1x9.2x1.5mm.

$7.77 from 1 to 999 pcs. $7.44 each at 1K pcs

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BC840E, Compact, Bluetooth 5, Thread, Zigbee module with u.FL
from 12.47

BC840E is a compact nRF52840 CKAA module with an u.FL connector.

Size is 7.1x12.2x1.5mm.

$10.39 each at 10-pack; $9.56 each at 100-pack, $8.31 each at 1K pcs

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EV-BC840M, Evaluation board for BC840M

Evaluation board for BC840M, compact Bluetooth 5 module

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EV-BC840, Evaluation board for BC840

Evaluation board for BC840, compact, short range Bluetooth 5 module

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EV-BC840E, Evaluation board for BC840E, compact, ultra long range BLE 5 module

Evaluation board for BC840E, compact, ultra long range Bluetooth 5 module

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