4-channel ANT™ Connectivity IC
Not recommended


This product is not recommended for new designs. Nordic recommends the nRF24AP2-8CH, nRF24AP2-1CH or nRF24AP2-USB for new designs.

The nRF24AP1 is a highly integrated single-chip 4-channel ANT™ Connectivity IC. It includes an ultra low power 2.4GHz RF transceiver and a fully embedded enhanced ANT protocol stack, plus a flexible serial interface supporting a wide range application microcontrollers. Offering sub-23mA peak currents, average currents as low as 30μA, and a 1.9 to 3.6V supply range, the nRF24AP1 enables battery lifetimes of months to years from a single coin cell battery. This ultra low power operation in combination with support for up to 4 simulations ANT channels, combined with the flexible network topologies of ANT, makes the nRF24AP1 ideally suited to a wide range of battery-operated ANT sensors and hubs used in products such as sportswatches, bike computers, and advanced wireless sensors.

The nRF24AP1's on-chip ANT protocol stack features full compatibility with all ANT+ profiles.

The nRF24AP1 is available in a 24-pin 5 x 5mm QFN package.


  • Single-chip ANT Connectivity IC with fully integrated radio and protocol stack
  • Full compatibility with ANT+ profiles enabling multivendor interoperability
  • Simple serial interface supporting a wide range of application microcontrollers
  • Ultra low power operation that enables months to years of battery life from on a CR2032 coin cell
  • Support for up to 4 channels, making it an ideal solution for ANT/ANT+ sensor hubs


  • Ultra low power wireless networks
  • Sports, fitness, and healthcare ANT+ sensor hubs
  • Watches, bike computers, handheld GPS devices, and gym machines
  • Home and Industrial automation
  • Active RF ID




Related Products

Ordering codes


Ultra low power single-chip 4-channel ANT™ Connectivity IC with embedded radio, protocol stack and serial interface for application microcontroller.

Ultra low power consumption

  • 30µA average for Broadcast TX at 0.5Hz message rate
  • 52µA average for Broadcast TX at 2Hz message rate
  • 34µA average for Broadcast RX at 0.5Hz message rate
  • 43µA average for Acknowledged TX at 0.5Hz message rate
  • 38µA average for Acknowledged RX at 0.5Hz message rate
  • 5.4mA average for 20kbps Burst mode
  • 2.0µA suspend mode
  • 16mA Active TX peak current at 0dBm
  • 22mA Active RX peak current


2.4GHz Radio

  • 2.4GHz ISM band operation
  • GFSK modulation 1MHz bandwidth
  • 0, -5, -10, and -20dBm programmable TX output power
  • 1Mbs on-air data rate
  • -80dBm RX sensitivity at 1Mbps
  • Compatible with 16MHz ±30ppm crystals


Embedded ANT™ protocol stack

  • Support up to 4 concurrent ANT channels
  • Advanced network topologies:
    peer-to-peer, star, tree and practical mesh
  • Broadcast, Acknowledged and Burst message types
  • Programmable message rate from 0.5 to 190Hz
  • Up to 20kbps burst transfer rate
  • Up to 216 nodes in shared channel


Oscillators and Timers

  • 16MHz XO


Host Controller Interface

  • 5-pin UART with 4800 to 57600 baud rate
  • 6-pin Synchronous, Byte/bit flow control


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
nRF24AP1-PS nRF24AP1 Product Specification 1.0
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


PC software
To aid your product development, Nordic also offers a range of tools enabling you to interact with and monitor your product


Code Name Version
ANTware-SW ANTware II 4.100

Reference Layout

Code Name Version
nRF24AP1-DF nRF24AP1 Reference Layout 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

User Guides

Code Name Version
ANTmes-UG ANT Message Protocol and Usage 5.0
ANTware-UG ANTware II User's Guide 1.1