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nRF24L01P(新版无线模块控制IC)(芯片资料).PDF
1 Introduction
1.1 Features
1.2 Block diagram
2 Pin Information
2.1 Pin assignment
2.2 Pin functions
3 Absolute maximum ratings
4 Operating conditions
5 Electrical specifications
5.1 Power consumption
5.2 General RF conditions
5.3 Transmitter operation
5.4 Receiver operation
5.5 Crystal specifications
5.6 DC characteristics
5.7 Power on reset
6 Radio Control
6.1 Operational Modes
6.1.1 State diagram
6.1.2 Power Down Mode
6.1.3 Standby Modes
6.1.3.1 Standby-I mode
6.1.3.2 Standby-II mode
6.1.4 RX mode
6.1.5 TX mode
6.1.6 Operational modes configuration
6.1.7 Timing Information
6.2 Air data rate
6.3 RF channel frequency
6.4 Received Power Detector measurements
6.5 PA control
6.6 RX/TX control
7 Enhanced ShockBurst™
7.1 Features
7.2 Enhanced ShockBurst™ overview
7.3 Enhanced Shockburst™ packet format
7.3.1 Preamble
7.3.2 Address
7.3.3 Packet control field
7.3.3.1 Payload length
7.3.3.2 PID (Packet identification)
7.3.3.3 No Acknowledgment flag (NO_ACK)
7.3.4 Payload
7.3.5 CRC (Cyclic Redundancy Check)
7.3.6 Automatic packet assembly
7.3.7 Automatic packet disassembly
7.4 Automatic packet transaction handling
7.4.1 Auto acknowledgement
7.4.2 Auto Retransmission (ART)
7.5 Enhanced ShockBurst flowcharts
7.5.1 PTX operation
7.5.2 PRX operation
7.6 MultiCeiver™
7.7 Enhanced ShockBurst™ timing
7.8 Enhanced ShockBurst™ transaction diagram
7.8.1 Single transaction with ACK packet and interrupts
7.8.2 Single transaction with a lost packet
7.8.3 Single transaction with a lost ACK packet
7.8.4 Single transaction with ACK payload packet
7.8.5 Single transaction with ACK payload packet and lost packet
7.8.6 Two transactions with ACK payload packet and the first ACK packet lost
7.8.7 Two transactions where max retransmissions is reached
7.9 Compatibility with ShockBurst™
7.9.1 ShockBurst™ packet format
8 Data and Control Interface
8.1 Features
8.2 Functional description
8.3 SPI operation
8.3.1 SPI commands
8.3.2 SPI timing
8.4 Data FIFO
8.5 Interrupt
9 Register Map
9.1 Register map table
10 Peripheral RF Information
10.1 Antenna output
10.2 Crystal oscillator
10.3 nRF24L01+ crystal sharing with an MCU
10.3.1 Crystal parameters
10.3.2 Input crystal amplitude and current consumption
10.4 PCB layout and decoupling guidelines
11 Application example
11.1 PCB layout examples
12 Mechanical specifications
13 Ordering information
13.1 Package marking
13.2 Abbreviations
13.3 Product options
13.3.1 RF silicon
13.3.2 Development tools
14 Glossary of Terms
Appendix A - Enhanced ShockBurst™ - Configuration and communication example
Enhanced ShockBurst™ transmitting payload
Enhanced ShockBurst™ receive payload
Appendix B - Configuration for compatibility with nRF24XX
Appendix C - Constant carrier wave output for testing
Configuration
nRF24L01+
Single Chip 2.4GHz Transceiver
Product Specification v1.0
Key Features
Applications
3-in-1 desktop bundles
• Wireless PC Peripherals
• Mouse, keyboards and remotes
•
• 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 tracking systems
•
Toys
• Worldwide 2.4GHz ISM band operation
250kbps, 1Mbps and 2Mbps on air data
•
rates
11.3mA TX at 0dBm output power
13.5mA RX at 2Mbps air data rate
900nA in power down
26µA in standby-I
• Ultra low power operation
•
•
•
•
• On chip voltage regulator
•
1.9 to 3.6V supply range
• Enhanced ShockBurst™
• Automatic packet handling
• Auto packet transaction handling
•
• Drop-in compatibility with nRF24L01
• On-air compatible in 250kbps and 1Mbps
with nRF2401A, nRF2402, nRF24E1 and
nRF24E2
Low cost BOM
±60ppm 16MHz crystal
5V tolerant inputs
•
•
•
• Compact 20-pin 4x4mm QFN package
6 data pipe MultiCeiver™
Reproduction in whole or in part is prohibited without the prior written permission of the copyright holder.
All rights reserved.
September 2008
nRF24L01+ Product Specification
Liability disclaimer
Nordic Semiconductor ASA reserves the right to make changes without further notice to the product to
improve reliability, function or design. Nordic Semiconductor ASA does not assume any liability arising out
of the application or use of any product or circuits described herein.
All application information is advisory and does not form part of the specification.
Limiting values
Stress 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 reliability.
Life support applications
These 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. 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 sale.
Preliminary product specification This product specification contains preliminary data; supplementary
This product specification contains target specifications for product
development.
data may be published from Nordic Semiconductor ASA later.
This product specification contains final product specifications. Nordic
Semiconductor ASA reserves the right to make changes at any time
without notice in order to improve design and supply the best possible
product.
Data sheet status
Objective product specification
Product specification
Contact details
Visit www.nordicsemi.no for Nordic Semiconductor sales offices and distributors worldwide
Main office:
Otto Nielsens vei 12
7004 Trondheim
Phone: +47 72 89 89 00
Fax: +47 72 89 89 89
www.nordicsemi.no
Revision 1.0
Page 2 of 78
nRF24L01+ Product Specification
Writing Conventions
This 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 blue.
Revision History
Date
September 2008
Version
1.0
Attention!
Observe precaution for handling
Electrostatic Sensitive Device.
HBM (Human Body Model) > 1Kv
MM (Machine Model) > 200V
Description
Revision 1.0
Page 3 of 78
nRF24L01+ Product Specification
Contents
1
1.1
1.2
2
2.1
2.2
3
4
5
5.1
5.2
5.3
5.4
5.5
5.6
5.7
6
6.1
6.1.1
6.1.2
6.1.3
6.1.4
6.1.5
6.1.6
6.1.7
6.2
6.3
6.4
6.5
6.6
7
7.1
7.2
7.3
7.3.1
7.3.2
7.3.3
7.3.4
7.3.5
7.3.6
7.3.7
7.4
7.4.1
7.4.2
Introduction ............................................................................................... 7
Features ............................................................................................... 8
Block diagram ...................................................................................... 9
Pin Information.......................................................................................... 10
Pin assignment..................................................................................... 10
Pin functions......................................................................................... 11
Absolute maximum ratings ...................................................................... 12
Operating conditions ................................................................................ 13
Electrical specifications ........................................................................... 14
Power consumption.............................................................................. 14
General RF conditions ......................................................................... 15
Transmitter operation ........................................................................... 15
Receiver operation ............................................................................... 16
Crystal specifications ........................................................................... 19
DC characteristics ................................................................................ 20
Power on reset ..................................................................................... 20
Radio Control ............................................................................................ 21
Operational Modes............................................................................... 21
State diagram .................................................................................. 21
Power Down Mode .......................................................................... 22
Standby Modes................................................................................ 22
RX mode.......................................................................................... 23
TX mode .......................................................................................... 23
Operational modes configuration..................................................... 24
Timing Information........................................................................... 24
Air data rate.......................................................................................... 25
RF channel frequency .......................................................................... 25
Received Power Detector measurements............................................ 25
PA control............................................................................................. 26
RX/TX control....................................................................................... 26
Enhanced ShockBurst™ .......................................................................... 27
Features ............................................................................................... 27
Enhanced ShockBurst™ overview....................................................... 27
Enhanced Shockburst™ packet format................................................ 28
Preamble ......................................................................................... 28
Address ........................................................................................... 28
Packet control field .......................................................................... 28
Payload............................................................................................ 29
CRC (Cyclic Redundancy Check) ................................................... 30
Automatic packet assembly............................................................. 31
Automatic packet disassembly ........................................................ 32
Automatic packet transaction handling ................................................ 33
Auto acknowledgement ................................................................... 33
Auto Retransmission (ART)............................................................. 33
Revision 1.0
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nRF24L01+ Product Specification
7.5
7.5.1
7.5.2
7.6
7.7
7.8
7.8.1
7.8.2
7.8.3
7.8.4
7.8.5
7.8.6
Enhanced ShockBurst flowcharts ........................................................ 35
PTX operation.................................................................................. 35
PRX operation ................................................................................. 37
MultiCeiver™........................................................................................ 39
Enhanced ShockBurst™ timing ........................................................... 42
Enhanced ShockBurst™ transaction diagram ..................................... 45
Single transaction with ACK packet and interrupts.......................... 45
Single transaction with a lost packet ............................................... 46
Single transaction with a lost ACK packet ....................................... 46
Single transaction with ACK payload packet ................................... 47
Single transaction with ACK payload packet and lost packet.......... 47
Two transactions with ACK payload packet and the first
ACK packet lost .............................................................................. 48
Two transactions where max retransmissions is reached ............... 48
7.8.7
Compatibility with ShockBurst™ .......................................................... 49
7.9
ShockBurst™ packet format............................................................ 49
7.9.1
Data and Control Interface ....................................................................... 50
8
Features ............................................................................................... 50
8.1
Functional description .......................................................................... 50
8.2
SPI operation ....................................................................................... 50
8.3
SPI commands ................................................................................ 50
8.3.1
SPI timing ........................................................................................ 52
8.3.2
Data FIFO ............................................................................................ 55
8.4
Interrupt................................................................................................ 56
8.5
Register Map.............................................................................................. 57
9
Register map table ............................................................................... 57
9.1
Peripheral RF Information ........................................................................ 64
10
Antenna output..................................................................................... 64
10.1
Crystal oscillator................................................................................... 64
10.2
nRF24L01+ crystal sharing with an MCU............................................. 64
10.3
Crystal parameters .......................................................................... 64
10.3.1
Input crystal amplitude and current consumption ............................ 64
10.3.2
PCB layout and decoupling guidelines................................................. 65
10.4
Application example ................................................................................. 66
11
11.1
PCB layout examples........................................................................... 67
12 Mechanical specifications........................................................................ 71
13
Ordering information ................................................................................ 73
Package marking ................................................................................. 73
13.1
Abbreviations ....................................................................................... 73
13.2
13.3
Product options .................................................................................... 73
RF silicon......................................................................................... 73
13.3.1
Development tools........................................................................... 73
13.3.2
Glossary of Terms..................................................................................... 74
14
Appendix A - Enhanced ShockBurst™ - Configuration and
communication example ......................................................................... 75
Enhanced ShockBurst™ transmitting payload..................................... 75
Revision 1.0
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nRF24L01+ Product Specification
Enhanced ShockBurst™ receive payload............................................ 76
Appendix B - Configuration for compatibility with nRF24XX................ 77
Appendix C - Constant carrier wave output for testing......................... 78
Configuration........................................................................................ 78
Revision 1.0
Page 6 of 78
nRF24L01+ Product Specification
1 Introduction
The nRF24L01+ is a single chip 2.4GHz transceiver with an embedded baseband protocol engine
(Enhanced ShockBurst™), suitable for ultra low power wireless applications. The nRF24L01+ is designed
for operation in the world wide ISM frequency band at 2.400 - 2.4835GHz.
To design a radio system with the nRF24L01+, you simply need an MCU (microcontroller) and a few exter-
nal passive components.
You can operate and configure the nRF24L01+ through a Serial Peripheral Interface (SPI). The register
map, which is accessible through the SPI, 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 operations.
The radio front end uses GFSK modulation. It has user configurable parameters like frequency channel,
output power and air data rate. nRF24L01+ supports an air data rate of 250 kbps, 1 Mbps and 2Mbps. The
high air data rate combined with two power saving modes make the nRF24L01+ very suitable for ultra low
power designs.
nRF24L01+ is drop-in compatible with nRF24L01 and on-air compatible with nRF2401A, nRF2402,
nRF24E1 and nRF24E2. Intermodulation and wideband blocking values in nRF24L01+ are much
improved in comparison to the nRF24L01 and the addition of internal filtering to nRF24L01+ has improved
the margins for meeting RF regulatory standards.
Internal voltage regulators ensure a high Power Supply Rejection Ratio (PSRR) and a wide power supply
range.
Revision 1.0
Page 7 of 78
nRF24L01+ Product Specification
1.1 Features
Features of the nRF24L01+ include:
• Radio
Worldwide 2.4GHz ISM band operation
126 RF channels
Common RX and TX interface
GFSK modulation
250kbps, 1 and 2Mbps air data rate
1MHz non-overlapping channel spacing at 1Mbps
2MHz non-overlapping channel spacing at 2Mbps
Programmable output power: 0, -6, -12 or -18dBm
11.3mA at 0dBm output power
•
Transmitter
• Receiver
Fast AGC for improved dynamic range
Integrated channel filters
13.5mA at 2Mbps
-82dBm sensitivity at 2Mbps
-85dBm sensitivity at 1Mbps
-94dBm sensitivity at 250kbps
• RF Synthesizer
Fully integrated synthesizer
No external loop filer, VCO varactor diode or resonator
Accepts low cost ±60ppm 16MHz crystal
• Enhanced ShockBurst™
1 to 32 bytes dynamic payload length
Automatic packet handling
Auto packet transaction handling
6 data pipe MultiCeiver™ for 1:6 star networks
• Power Management
Integrated voltage regulator
1.9 to 3.6V supply range
Idle modes with fast start-up times for advanced power management
26µA Standby-I mode, 900nA power down mode
Max 1.5ms start-up from power down mode
Max 130us start-up from standby-I mode
• Host Interface
4-pin hardware SPI
Max 10Mbps
3 separate 32 bytes TX and RX FIFOs
5V tolerant inputs
• Compact 20-pin 4x4mm QFN package
Revision 1.0
Page 8 of 78
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