This Product Specification contains functional descriptions, register tables, and electrical specifications, and is organized into chapters based on the modules and peripherals that are available in this IC.

Note: The HTML rendition of the Product Specification corresponds to the latest version only. All versions are available as PDF attachments.
Features:
  • Bluetooth® 5.1, IEEE 802.15.4-2006, 2.4 GHz transceiver
    • -95 dBm sensitivity in 1 Mbps Bluetooth Low Energy mode
    • -103 dBm sensitivity in 125 kbps Bluetooth low energy mode (long range)
    • -20 to +8 dBm TX power, configurable in 4 dB steps
    • On-air compatible with nRF52, nRF51, nRF24L, and nRF24AP Series devices
    • Supported data rates:
      • Bluetooth 5.1 – 2 Mbps, 1 Mbps, 500 kbps, and 125 kbps
      • IEEE 802.15.4-2006 – 250 kbps
      • Proprietary 2.4 GHz – 2 Mbps, 1 Mbps
    • Angle-of-arrival (AoA) and angle-of-departure (AoD) direction finding using Bluetooth
    • Single-ended antenna output (on-chip balun)
    • 128-bit AES/ECB/CCM/AAR co-processor (on-the-fly packet encryption)
    • 4.9 mA peak current in TX (0 dBm)
    • 4.7 mA peak current in RX
    • RSSI (1 dB resolution)
  • Arm® Cortex®-M4 32-bit processor, 64 MHz
    • 144 EEMBC CoreMark® score running from flash memory
    • 33 µA/MHz running CoreMark from flash memory
    • 33 µA/MHz running CoreMark from RAM
    • Serial wire debug (SWD)
  • Flexible power management
    • 1.7 V to 5.5 V supply voltage range
    • On-chip DC/DC and LDO regulators with automated low current modes
    • Automated peripheral power management
    • Fast wake-up using 64 MHz internal oscillator
    • 0.3 µA at 3 V in System OFF mode, no RAM retention
    • 1.2 µA at 3 V in System ON mode, no RAM retention, wake on RTC
  • 256 kB flash and 32 kB RAM
  • Advanced on-chip interfaces
    • USB 2.0 full speed (12 Mbps) controller
    • Programmable peripheral interconnect (PPI)
    • 18 general purpose I/O pins
    • EasyDMA automated data transfer between memory and peripherals
  • Nordic SoftDevice ready with support for concurrent multiprotocol
  • 64 level comparator
  • Temperature sensor
  • Four 32-bit timer with Counter mode
  • Up to two SPI masters/slaves with EasyDMA
  • Up to two I2C compatible two-wire master/slave
  • UART (CTS/RTS) with EasyDMA
  • Quadrature decoder (QDEC)
  • Two real-time counters (RTC)
  • Single crystal operation
  • Operating temperature from -40°C to 105°C
  • Package variants
    • QFN40 package, 5 x 5 mm
    • WLCSP package, 2.531 x 2.531 mm
Applications:
  • Advanced computer peripherals and I/O devices
    • Mouse
    • Keyboard
    • Multi-touch trackpad
  • Internet of things (IoT)
    • Smart home sensors and controllers
    • Industrial IoT sensors and controllers
  • Interactive entertainment devices
    • Remote controls
    • Gaming controllers