2.4 GHz transceiver
‧ -96 dBm sensitivity in Bluetooth® low energy mode
‧ 1 Mbps, 2 Mbps supported data rates
‧ TX power -20 to +4 dBm in 4 dB steps
‧ Single-pin antenna interface
‧ 5.3 mA peak current in TX (0 dBm)
‧ 5.4 mA peak current in RX
‧ RSSI (1 dB resolution)
ARM® Cortex®-M4 32-bit processor with FPU, 64 MHz
‧ 215 EEMBC CoreMark® score running from flash memory
‧ 58 μA/MHz running from flash memory
‧ 51.6 μA/MHz running from RAM
‧ Data watchpoint and trace (DWT), embedded trace macrocell (ETM), and
instrumentation trace macrocell (ITM)
‧ Serial wire debug (SWD)
‧ Trace port
Flexible power management
‧ Supply voltage range 1.7 V–3.6 V
‧ Fully automatic LDO and DC/DC regulator system
‧ Fast wake-up using 64 MHz internal oscillator
‧ 0.7 μA at 3 V in OFF mode
‧ 1.0 μA at 3 V in OFF mode with 32 kB RAM retention
‧ 1.9 μA at 3 V in ON mode, no RAM retention, wake on RTC
Memory
‧ 512 kB flash/64 kB RAM
Nordic SoftDevice ready
Support for concurrent multi-protocol
Type 2 near field communication (NFC-A) tag with wakeup-on-field and touchto-
pair capabilities
12-bit, 200 ksps ADC - 8 configurable channels with programmable gain
64 level comparator
15 level low power comparator with wakeup from System OFF mode
Temperature sensor
24 general purpose I/O pins
3x 4-channel pulse width modulator (PWM) units with EasyDMA
Digital microphone interface (PDM)
5x 32-bit timers 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)
External system
Single crystal operation
On-chip balun (single-ended