MK08 nRF52840 Module

Nordic® Semiconductor nRF52840 SoC solution
Bluetooth (2 Mbps,CSA #2,Advertising Extensions,Long Range)
64 MHz ARM® Cortex-M4F CPU
1MB Flash and 256kB RAM
1.7 V to 5.5 V
UART,SPI,TWI,PDM,PWM,ADC
21 x 13.8 x 2.3mm (with shield)
46 GPIOs
Antenna(MK08A – PCB antenna , MK08B – u.FL connector)
Highly flexible multiprotocol SoC ideally suited for Bluetooth® Low Energy, ANT+, Zigbee, Thread (IEEE 802.15.4) ultra low-power wireless applications.

Product Instruction

MK08 series nRF52840 modules are designed using Nordic Higher-end Bluetooth 5 SoC-nRF52840. Its transmission power can reach +8 dBm, built-in 1MB Flash and 256 KB RAM, fully supports Bluetooth 5, 802.15.4 (including Thread), ANT and private 2.4GHz wireless technology, and has a full-speed USB 2.0 controller and a series of peripherals (can support many devices through EasyDMA), including a four-channel SPI interface. MK08 nRF52840 module can also be powered by a power supply above 5V, such as a rechargeable battery power supply, with a power supply range of 1.7V~5.5V. MK08 Bluetooth 5 modules can be widely used in high-performance HID controllers, smart home and industrial and IoT devices. MOKOsmart can provide fast and professional technical support for software and hardware design.

MK08 series Bluetooth nRF52840 module has two different models — MK08A and MK08B.

Product Specifications

Detail	Description
Bluetooth
Feature	Bluetooth® Low Energy Bluetooth® Mesh 1M LE PHY 2M LE PHY Coded LE PHY (Long Range) Advertising Extensions CSA #2
Security	AES-128 NIST SP800-90A and SP800-90B Chacha20/Poly1305 AEAD SHA-1 and SHA-2 HMAC RSA SRP ECC Application key management using derived key model
LE connections	Concurrent central, observer, peripheral, and broadcaster roles with up to twenty concurrent connections along with one observer and one broadcaster
Radio
Frequency	2360MHz - 2500Mhz
Modulations	GFSK at 1 Mbps, 2 Mbps 250kbps (IEEE 802.15.4-2006) and Long range (125kbps and 500kbps) data rates
Transmit power	+8 dBm maximum Configurable down to -40dBm
Receiver sensitivity	-103 dBm sensitivity in 125 kbps Bluetooth® LE mode -99 dBm sensitivity in 500 kbps Bluetooth® LE mode -95 dBm sensitivity in 1 Mbps Bluetooth® LE mode -92 dBm sensitivity in 2 Mbps Bluetooth® LE mode -93 dBm sensitivity in 1 Mbps nRF mode -89 dBm sensitivity in 2 Mbps nRF mode -100 dBm sensitivity in IEEE 802.15.4 mode
Antenna	PCB trace antenna(MK08A) External 2.4Ghz antenna(MK08B)
Mechanical Design
Dimensions	Length: 21mm±0.2mm Width: 13.8mm±0.2mm Height: 2.3mm+0.1mm/-0.15mm
Package	34 Plated Half-hole pins
PCB material	FR-4
Impedance	50 Ω
Hardware
CPU	ARM® Cortex®-M4 32-bit processor with FPU, 64 MHz
Memory	1MB flash, 256kB RAM
Interfaces	4x SPI master/3x SPI slave with EasyDMA 2x I2C compatible two-wire master/slave 2x UART (CTS/RTS) with EasyDMA 3x real-time counter (RTC) 5x 32-bit timer with counter mode 4x 4-channel pulse width modulator (PWM) unit with EasyDMA 46 GPIOs 8x 12bit, 200ksps ADC Audio peripherals – I2S, digital microphone interface (PDM)
Power supply	1.7V to 5.5V
Operating temperature range	-40 to 85 ℃ (-40 to +105 °C can be customized)
Clock control	32.768 kHz +/-20 ppm crystal oscillator
Power regulator	DC/DC regulator setup