nRF24L01 Product Specification V2 - SparkFun Electronics

1 All rights in whole or in part is prohibited without the prior written permission of the copyright 2007nRF24L01 Single Chip TransceiverProduct SpecificationKey Features Worldwide ISM band operation Up to 2 Mbps on air data rate Ultra low power operation TX at 0dBm output power RX at 2 Mbps air data rate 900nA in power down 22 A in standby-I On chip voltage regulator to supply range Enhanced ShockBurst Automatic packet handling Auto packet transaction handling 6 data pipe MultiCeiver Air compatible with nRF2401A, 02, E1 and E2 Low cost BOM 60ppm 16 MHz crystal 5V tolerant inputs Compact 20-pin 4x4mm QFN packageApplications Wireless PC Peripherals Mouse, keyboards and remotes 3-in-one desktop bundles Advanced Media center remote controls VoIP headsets Game controllers Sports watches and sensors RF remote controls for consumer Electronics Home and commercial automation Ultra low power sensor networks Active RFID Asset tracing systems ToysRevision Page 2 of 74nRF24L01 Product SpecificationLiability disclaimerNordic Semiconductor ASA reserves the right to make changes without further notice to the Product to improve reliability.

2 Function or design. Nordic Semiconductor ASA does not assume any liability arising out of the application or use of any Product or circuits described application information is advisory and does not form part of the valuesStress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the specifications are not implied. Exposure to limiting values for extended periods may affect device support applicationsThese products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury.

3 Nordic Semiconductor ASA cus-tomers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Nordic Semiconductor ASA for any damages resulting from such improper use or detailsVisit for Nordic Semiconductor sales offices and distributors worldwide Main office:Otto Nielsens vei 127004 TrondheimPhone: +47 72 89 89 00 Fax: +47 72 89 89 sheet statusObjective Product specificationThis Product Specification contains target specifications for Product Product Specification This Product Specification contains preliminary data; supplementary data may be published from Nordic Semiconductor ASA specificationThis Product Specification contains final Product specifications.

4 Nordic Semiconductor ASA reserves the right to make changes at any time without notice in order to improve design and supply the best possible Page 3 of 74nRF24L01 Product SpecificationWriting ConventionsThis Product Specification follows a set of typographic rules that makes the document consistent and easy to read. The following writing conventions are used: Commands, bit state conditions, and register names are written in Courier. Pin names and pin signal conditions are written in Courier bold. Cross references are underlined and highlighted in HistoryDateVersionDescriptionJuly Restructured layout in a new template Added details of the following features:XDynamic Payload Length (DPL)XAcknowledgement Payload (ACK_PLD)XFeature registerXACTIVATE SPI commandXSelective Auto Acknowledgement (NO_ACK)Revision Page 4 of 74nRF24L01 Product SpecificationContents1 introduction .

5 Diagram .. 92 Pin Information .. 113 Absolute maximum ratings .. 124 Operating conditions .. 135 Electrical specifications .. RF conditions .. operation .. operation .. specifications .. characteristics .. on reset .. 186 Radio Control .. Modes .. diagram .. Down Mode .. mode .. modes Information .. data channel frequency .. gain .. control .. 237 Enhanced ShockBurst .. ShockBurst overview .. Enhanced Shockburst packet .. Control Field .. (Cyclic Redundancy Check) .. packet handling .. and Dynamic Payload packet assembly.

6 Packet validation .. packet disassembly .. packet transaction handling .. 28 Revision Page 5 of 74nRF24L01 Product Acknowledgement .. Retransmission (ART).. ShockBurst flowcharts .. operation .. ShockBurstTM timing .. ShockBurstTM transaction diagram .. transaction with ACK packet and transaction with a lost transaction with a lost ACK packet .. transaction with ACK payload packet .. transaction with ACK payload packet and lost packet .. transactions with ACK payload packet and the first ACK packet lost .. transactions where max retransmissions is with ShockBurst .. packet 448 Data and Control Interface.

7 Description .. operation .. Commands .. timing .. FIFO .. 529 Register map table .. 5310 Peripheral RF Information .. output .. oscillator .. sharing crystal with an parameters .. crystal amplitude and current consumption .. layout and decoupling 6011 Mechanical specifications .. 6112 Ordering information .. marking .. 6313 Glossary of 64 Appendix A - Enhanced ShockBurst - Configuration and Communication Example .. 65 Enhanced ShockBurst Transmitting Payload .. 65 Enhanced ShockBurst Receive Payload .. 65 Appendix B - Configuration for compatibility with 67 Appendix C - Carrier wave output 68 Revision Page 6 of 74nRF24L01 Product SpecificationConfiguration.

8 68 Appendix D - Application example .. 69 PCB layout examples .. 70 Appendix E - Stationary disturbance detection .. 74 Revision Page 7 of 74nRF24L01 Product Specification1 IntroductionThe nRF24L01 is a single chip transceiver with an embedded baseband protocol engine (Enhanced ShockBurst ), designed for ultra low power wireless applications. The nRF24L01 is designed for operation in the world wide ISM frequency band at - An MCU (microcontroller) and very few external passive components are needed to design a radio system with the nRF24L01 is configured and operated through a Serial Peripheral Interface (SPI.) Through this inter-face the register map is available.

9 The register map contains all configuration registers in the nRF24L01 and is accessible in all operation modes of the chip. The embedded baseband protocol engine (Enhanced ShockBurst ) is based on packet communication and supports various modes from manual operation to advanced autonomous protocol operation. Internal FIFOs ensure a smooth data flow between the radio front end and the system s MCU. Enhanced Shock-Burst reduces system cost by handling all the high-speed link layer radio front end uses GFSK modulation. It has user configurable parameters like frequency channel, output power and air data air data rate supported by the nRF24L01 is configurable to 2 Mbps.

10 The high air data rate combined with two power saving modes makes the nRF24L01 very suitable for ultra low power voltage regulators ensure a high Power Supply Rejection Ratio (PSRR) and a wide power supply Page 8 of 74nRF24L01 Product FeaturesFeatures of the nRF24L01 include: RadioXWorldwide ISM band operationX126 RF channelsXCommon RX and TX pinsXGFSK modulationX1 and 2 Mbps air data rateX1 MHz non-overlapping channel spacing at 1 MbpsX2 MHz non-overlapping channel spacing at 2 Mbps TransmitterXProgrammable output power: 0, -6, -12 or at 0dBm output power ReceiverXIntegrated channel at 2 MbpsX-82dBm sensitivity at 2 MbpsX-85dBm sensitivity at 1 MbpsXProgrammable LNA gain RF SynthesizerXFully integrated synthesizerXNo external loop filer, VCO varactor diode or resonatorXAccepts low cost 60ppm 16 MHz crystal Enhanced ShockBurst X1 to 32 bytes dynamic payload lengthXAutomatic packet handlingXAuto packet transaction handlingX6 data pipe MultiCeiver for 1.