nRF21540 Product Specification

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 files.
Key features: Applications:
  • Front-end module with RF PA and LNA
  • Supports Bluetooth® Low Energy, IEEE 802.15.4, and proprietary applications
  • Max output power 22 dBm
  • Adjustable output gain from 5 ±1 dB to 21 ±1 dB
  • User programmable modes for TX gain
  • Non-volatile memory storage for gain settings
  • Dual antenna port with antenna diversity support
  • RX gain +13 dB
  • Single-ended 50 Ω matched input and output
  • 110 mA at +20 dBm output power
  • 38 mA at +10 dBm output power
  • Control interface via I/O, SPI, or a combination of both
  • Supply voltage 1.7 V to 3.6 V, suitable for 1.8 V ±5% systems
  • Operating temperature -40°C to 105°C
  • Package variant QFN16 4 x 4 mm
  • Smart Home applications
  • Industrial and factory automation
  • Asset tracking
  • Advanced CE remote controls
  • Sports and fitness
  • Toys
  • Medical
  • Beacons