MDBT40 is a BT 4.0 & BT 4.1 stack (Bluetooth low energy or BLE) module designed based on Nordic nRF51822 SoC solution, which incorporates: GPIO, UART, I2C, SPI, PWM and ADC interfaces for connecting peripherals and sensors.

Features

1. Dual Transmission Mode of BLE & RF 2.4G upon customer preference. 

2. Compact size with (L) 18 x (W) 10 x (H) 3.2 mm 

3. Low power requirements, ultra-low peak, average and idle mode power consumption. 

4. Compatible with a large installed base of mobile phones, tablets and computers. 

5. Fully coverage of BLE software stack including: 

    Proximity Profile; Heart Rate Profile; Health Thermometer Profile; 

    Blood Pressure Profile; Running Speed & Cadence Profile; 

    HID Over GATT Profile; Alert Notification Profile; Glucose Profile; 

    Cycling Speed & Cadence Profile 

6. BLE & RF transmission switching may help products to fit all operation system 

7. BLE & RF transmission switching may help products fit all kinds of hardware. 

Applications 

• Computer peripherals and I/O devices 

• Mouse 

• Keyboard 

• Multi-touch track pad 

• Interactive entertainment devices 

• Remote control 

• 3D Glasses 

• Gaming controller 

• Personal Area Networks 

• Health/fitness sensor and monitor devices 

• Medical devices 

• Key-fobs + wrist watch 

• Remote control toys

Product Dimension

PCB SIZE：(L) 18 x (W) 10 x (H) 3.2 mm

Specifications

• 2.4GHZ transceiver:

• -93dbm sensitivity in Bluetooth low energy mode

•  TX Power -20 to +4dbm

• RSSI (1db resolution)

• ARM Cortex – M0 32 bit processor:

• Serial Wire Debug (SWD)

• S100 series SoftDevice ready

• Memory:

• 256kb embedded flash programmed memory

• 32kb RAM

• Support for non-concurrent multiprotocol operation

• On-air compatibility with nRF24L series

• Flexible Power Management:

• Supply voltage range 1.8V to 3.6V

• 2.5us wake-up using 16MHz RCOSC

• 0.6uA @ 3V mode

• 1.2uA @ 3V in OFF mode + 1 region RAM retention

• 2.6uA @ 3V ON mode, all blocks IDLE

• 8/9/10 bit ADC- 8 configurable channels

• 31 General Purpose I/O Pins

• One 32 bit and two 16 bit timers with counter mode

• SPI Master / Slave

• UART (CTS/RTS)

• CPU independent Programmable Peripheral Interconnect (PPI)

• Quadrature Decoder (QDEC)

• AES HW encryption

• Real Timer Counter (RTC)

• Main Chip Solution: 

• RF IC: Nordic NRF51822/QFN48

• Crystal Frequency 16MHZ

Technical details

Part List