Low power 2.4GHz RF Transceiver IC
Not recommended


This product is not recommended for new designs. Nordic recommends the nRF24L01+ or for a System-on-Chip solution either the Nordic nRF24LE1 or nRF24LU1+.

The Nordic nRF2401A is a highly integrated, ultra low power (ULP) 1Mbps RF transceiver IC for the 2.4GHz ISM (Industrial, Scientific and Medical) band. With peak RX/TX currents lower than 20mA, a sub μA power down mode, advanced power management, and a 1.9 to 3.6V supply range, the nRF2401A provides a true ULP solution enabling months to years of battery lifetime when running from coin cells or AA/AAA batteries. In addition, its ShockBurst™ hardware protocol accelerator offloads time critical protocol functions from the application microcontroller enabling the implementation of advanced and robust wireless connectivity with low cost 3rd-party microcontrollers.

The nRF2401A integrates a complete 2.4GHz RF transceiver, RF synthesizer, and baseband logic including the ShockBurst™ hardware protocol accelerator supporting a high-speed SPI interface for the application controller. No external loop filter, resonators, or VCO varactor diodes are required, only a low cost 16MHz ±30ppm crystal, matching circuitry, and antenna.

The nRF2401A is available in a compact 24-pin 5 x 5mm QFN package.


  • Low cost single-chip 2.4GHz GFSK RF transceiver IC
  • Worldwide license-free 2.4GHz ISM band operation
  • 250kbps and 1Mbps on-air data-rate
  • ShockBurst™ hardware protocol accelerator
  • Ultra low power consumption – months to years of battery lifetime
  • On-air compatible with all Nordic nRF24L Series in 250kbps and 1Mbps mode
  • Fully on-air compatible with Nordic nRF24E and nRF240 Series


  • PC peripherals
  • Gaming
  • Sports and fitness
  • Toys
  • Consumer electronics

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Ordering codes


The Nordic nRF2401A is a highly integrated, ultra low power (ULP) 1Mbps RF transceiver IC for the 2.4GHz ISM (Industrial, Scientific and Medical) band.

Ultra low power consumption

  • 900nA deep sleep mode
  • 13mA Radio TX at 0dBm
  • 19mA Radio RX at 1Mbps on-air data-rate


2.4GHz Radio

  • 2.4GHz ISM band operation
  • GFSK modulation, 1MHz bandwidth
  • 0, -5, -10, and -20dBm programmable TX output power
  • Configurable on-air data rate of 250kbps or 1Mbps
  • -93dBm RX sensitivity a 250kbps
  • -85dBm RX sensitivity at 1Mbps
  • Compatible with a 16MHz ±30ppm crystal


ShockBurst™ hardware protocol accelerator

  • Automatic packet assembly
    (Preamble, Address, CRC)
  • Automatic packed detection and validation
  • DuoCeiver™ for simultaneous receiver


MCU Interface

  • SPI


Power supply

  • Internal linear voltage regulator
  • 1.9 to 3.6V supply range


Temperature range of -40 to +80 ºC

Package options

  • 24-pin 5 x 5mm QFN

Product Specification

Code Name Version
nRF2401A-PS nRF2401A Product Specification 1.1
PCN-005 Product Change Notification
PCN-059 Product Change Notification - Cu as additional bond wire option 1.0
PCN-075 Product Change Notification 1_0
PCN-094 Change on outer box container for trays and 7” reels 1.0

Application Notes

Code Name Version
nAN400-08 QFN Soldering Reflow Guidelines 1.2

White Papers

Code Name Version
nWP-001 Benefits of Total Integration of Large RF Circuits
nWP-005 Introduction to wireless networks
nWP-006 nRF Performance Test Guidelines 1.0
nWP-008 Quarterwave printed monopole antenna for 2.4GHz
nWP-010 Regulatory and Compliance Standards for RF Devices
nWP-011 Sharing crystal with a microcontroller (MCU) 1.1
nWP-013 Tuning the nRF24xx matching network
nWP-015 Crystal Oscillator Design Considerations
nWP-017 Antenna tuning 1.0