Key Features
BLE
2.4 GHz transceiver
- -96 dBm sensitivity in Bluetooth low energy mode
- Supported data rates: 1 Mbps, 2 Mbps Bluetooth low energy mode
- -20 to +4 dBm TX power, configurable in 4 dB steps
- On-chip balun (single-ended RF)
- 7.5mA peak current in TX (4 dBm)
- 5.3mA peak current in TX (0 dBm)
- 5.4mA peak current in RX
- RSSI (1 dB resolution)
ARM ® Cortex ® -M4 32-bit processor with FPU, 64 MHz
- 215EEMBC CoreMark ® score running from flash memory
- 58µA/MHz running CoreMark from flash memory
- 51.6µA/MHz running CoreMark from RAM memory
- Serial wire debug (SWD)
- Data watchpoint and trace (DWT), embedded trace macrocell (ETM), and instrumentation trace macrocell (ITM)
- Trace port
Flexible power management
- 1.7 V to 3.6 V supply voltage range
- Fully automatic LDO and DC/DC regulator system
- Fast wake-up using a 64 MHz internal oscillator
- 0.3 µA at 3 V in System OFF mode, no RAM retention
- 0.7 µA at 3 V in System OFF mode with full 64 kB RAM retention
- 1.9 µA at 3 V in System ON mode, no RAM retention, wake on RTC
- 256 kB flash and 32 kB RAM
- Nordic SoftDevice ready
- Support for concurrent multi-protocol
- Type 2 near field communication (NFC-A) tag with wakeup-on-field and touch-to-pair capabilities
- 12-bit, 200 ksps ADC – 8 configurable channels with programmable gain
- 64-level comparator
- Temperature sensor
- 32 general purpose I/O pins
- 3x 4-channel pulse width modulator (PWM) unit with EasyDMA
- Digital microphone interface (PDM)
- 5x 32-bit timer with counter mode
- Up to 3x SPI master/slave with EasyDMA
- Up to 2x I2C compatible 2-wire master/slave
- I2S with EasyDMA
- UART (CTS/RTS) with EasyDMA
- Programmable peripheral interconnect (PPI)
- Quadrature decoder (QDEC)
- AES HW encryption with EasyDMA
- Autonomous peripheral operation without CPU intervention using PPI and EasyDMA
- 3x real-time counter (RTC)
- Single crystal operation
LoRa
- Covers the continuous frequency range of 850 ~ 931 MHz
- Up to +22 dBm can meet longer-distance communication requirements
- Very low received current consumption: 4.6 mA
- The programmable bit rate range of LoRa is 1.76 kbps to 62.5 kbps, and the FSK is 300 kbps
- High sensitivity as low as -148 dBm
- In LoRa mode, the common channel suppression is 19 dB
- FSK, GFSK, MSK, GMSK, LoRa, and long-distance FHSS modulation
- Automatic channel activity detection (CAD) based on ultra-fast AFC
- Built-in bit synchronizer, which can be used for clock recover