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BM840, BM840P
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- Commodity name: BM840, BM840P
BM840, BM840P nRF52840 Bluetooth 5.3 Module
Full Feature BLE 5.3 module at the lowest cost
By using 2-sided PCB, BM840 has minimum BOM cost and is made in production line dedicated for Bluetooth modules with high production and quality control efficiency, the cost of using BM840 module can be lower than designing-in SoC at any quantity.
However, it is a full feature module. All 32 GPIOs of nRF52840 QFAA can be accessed. Inductors required for DCDC converted are integrated. A high performance PCB trace antenna is integrated.
BM840 is footprint upgradeable from BM832 and BM832A. It is a drop-in replacement when more memories or a security co-processor is required,
BM840P is a sister module of BM840 with connection pads for an external antenna.
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Nordic nRF52840 QFAA with Cortex M4F at 64MHz
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1024KB flash/256KB RAM
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ARM Trustzone Crypto 310 security co-processor.
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Secure boot ready.
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Bluetooth Range: 500 meters, estimated, with at least 60% Fresnel zone clearance.
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Complete RF solution with integrated antenna
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NFC-A tag interface for Out Of Band pairing
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128-bit AES HW encryption
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Serial Wire Debug (SWD)
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Nordic SoftDevice Ready
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Over-The-Air (OTA) firmware update
30 GPIOs, firmware configurable and Peripherals
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12 bit/200KSps ADC, 8 configurable channels with programmable gain
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Type 2 near field communication (NFC-A) tag
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64 level comparator
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15 level low power comparator with wake-up from system OFF mode
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Temperature sensor
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3x 4-channel pulse width modulator (PWM) units with EasyDMA
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Digital microphone interface (PDM)
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5x 32 bit timers with counter mode
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Up to 3x SPI Master/Slave with Easy DMA
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Up to 2x I2C compatible 2-wire master/slave
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I2S with EasyDMA
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UART (CTS/RTS) with EasyDMA
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Programmable peripheral interconnect (PPI)
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Quadrature Demodulator (QDEC)
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AES HW encryption with EasyDMA
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Autonomous peripheral operation without CPU intervention using PPI and Easy DMA
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3x real time counter (RTC)
Power:
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Operation voltage: 1.7V to 3.6V
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Peak current: 4.6 mA RX, 4.8 mA TX at +0 dBm.
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0.4 uA OFF mode, 1.5 uA idle
Miscellaneous
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Operation Temperature: -40°C to +105°C
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Sizes: 10.2x15x1.9mm
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Integrated shield to resist EMI
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Availability: Production.
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BM840 and BM840P support approtect features.
Certifications:
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FCC ID: X8WBM840
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IC (Industrial Canada) ID: 4100A-BM840
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Europe: Compliant
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Japan TELEC: 201-220130
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Australia: Compliant
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QDID: 108621, 182626.
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