nRF21540 Objective 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:
  • Supports Bluetooth® Low Energy, 802.15.4, and proprietary applications
  • Max output power 22 dBm
  • Adjustable output power to ±1 dB from 5 to 21 dBm
  • User programmable modes for TX gain
  • Support for two antenna interfaces
  • Receive gain +13 dB
  • Single-ended 50 Ω matched input and output
  • 115 mA @ +20 dBm output power
  • 42 mA @ +10 dBm output power
  • Control interface via IO, SPI, or a combination of both
  • Supply voltage 1.7 to 3.6 V, suitable for 1.8+/-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

Documentation feedback | Developer Zone | Updated 2019-12-13