MRF24J40MA
Data Sheet
2.4 GHz IEEE Std. 802.15.4™
RF Transceiver Module
©
2008 Microchip Technology Inc.
DS70329B
Note the following details of the code protection feature on Microchip devices:
•
•
Microchip products meet the specification contained in their particular Microchip Data Sheet.
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There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our
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•
•
•
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Trademarks
The Microchip name and logo, the Microchip logo, Accuron,
dsPIC, K
EE
L
OQ
, K
EE
L
OQ
logo, MPLAB, PIC, PICmicro,
PICSTART, rfPIC, SmartShunt and UNI/O are registered
trademarks of Microchip Technology Incorporated in the
U.S.A. and other countries.
FilterLab, Linear Active Thermistor, MXDEV, MXLAB,
SEEVAL, SmartSensor and The Embedded Control Solutions
Company are registered trademarks of Microchip Technology
Incorporated in the U.S.A.
Analog-for-the-Digital Age, Application Maestro, CodeGuard,
dsPICDEM, dsPICDEM.net, dsPICworks, dsSPEAK, ECAN,
ECONOMONITOR, FanSense, In-Circuit Serial
Programming, ICSP, ICEPIC, Mindi, MiWi, MPASM, MPLAB
Certified logo, MPLIB, MPLINK, mTouch, PICkit, PICDEM,
PICDEM.net, PICtail, PIC
32
logo, PowerCal, PowerInfo,
PowerMate, PowerTool, REAL ICE, rfLAB, Select Mode, Total
Endurance, WiperLock and ZENA are trademarks of
Microchip Technology Incorporated in the U.S.A. and other
countries.
SQTP is a service mark of Microchip Technology Incorporated
in the U.S.A.
All other trademarks mentioned herein are property of their
respective companies.
© 2008, Microchip Technology Incorporated, Printed in the
U.S.A., All Rights Reserved.
Printed on recycled paper.
Microchip received ISO/TS-16949:2002 certification for its worldwide
headquarters, design and wafer fabrication facilities in Chandler and
Tempe, Arizona; Gresham, Oregon and design centers in California
and India. The Company’s quality system processes and procedures
are for its PIC
®
MCUs and dsPIC
®
DSCs, K
EE
L
OQ
®
code hopping
devices, Serial EEPROMs, microperipherals, nonvolatile memory and
analog products. In addition, Microchip’s quality system for the design
and manufacture of development systems is ISO 9001:2000 certified.
DS70329B-page ii
©
2008 Microchip Technology Inc.
MRF24J40MA
2.4 GHz IEEE Std. 802.15.4™ RF Transceiver Module
Features:
• IEEE Std. 802.15.4™ Compliant RF Transceiver
• Supports ZigBee
®
, MiWi™, MiWi™ P2P and
Proprietary Wireless Networking Protocols
• Small Size: 0.7” x 1.1” (17.8 mm x 27.9 mm),
Surface Mountable
• Integrated Crystal, Internal Voltage Regulator,
Matching Circuitry and PCB Antenna
• Easy Integration into Final Product – Minimize
Product Development, Quicker Time to Market
• Radio Regulation Certification for United States
(FCC), Canada (IC) and Europe (ETSI)
• Compatible with Microchip Microcontroller
Families (PIC16F, PIC18F, PIC24F/H, dsPIC33
and PIC32)
• Up to 400 ft. Range
RF/Analog Features:
• ISM Band 2.405-2.48 GHz Operation
• Data Rate: 250 kbps
• -94 dBm Typical Sensitivity with +5 dBm
Maximum Input Level
• +0 dBm Typical Output Power with
36 dB TX Power Control Range
• Integrated Low Phase Noise VCO, Frequency
Synthesizer and PLL Loop Filter
• Digital VCO and Filter Calibration
• Integrated RSSI ADC and I/Q DACs
• Integrated LDO
• High Receiver and RSSI Dynamic Range
MAC/Baseband Features:
• Hardware CSMA-CA Mechanism, Automatic ACK
Response and FCS Check
• Independent Beacon, Transmit and GTS FIFO
• Supports all CCA modes and RSS/LQI
• Automatic Packet Retransmit Capable
• Hardware Security Engine (AES-128) with CTR,
CCM and CBC-MAC modes
• Supports Encryption and Decryption for MAC
Sublayer and Upper Layer
Operational:
•
•
•
•
Operating Voltage: 2.4-3.6V (3.3V typical)
Temperature Range: -40°C to +85°C Industrial
Simple, Four-Wire SPI Interface
Low-Current Consumption:
- RX mode: 19 mA (typical)
- TX mode: 23 mA (typical)
- Sleep: 2
μA
(typical)
FIGURE 1:
PIN DIAGRAM
GND
RESET
WAKE
INT
SDI
SCK
1
2
3
4
5
6
12
11
10
9
8
7
GND
GND
V
IN
NC
CS
SDO
©
2008 Microchip Technology Inc.
DS70329B-page 1
MRF24J40MA
Table of Contents
1.0 Device Overview .......................................................................................................................................................................... 3
2.0 Circuit Description ........................................................................................................................................................................ 7
3.0 Regulatory Approval................................................................................................................................................................... 15
4.0 Electrical Characteristics ............................................................................................................................................................ 19
Appendix A: Revision History............................................................................................................................................................... 21
Index .................................................................................................................................................................................................... 23
The Microchip Web Site ....................................................................................................................................................................... 25
Customer Change Notification Service ................................................................................................................................................ 25
Customer Support ................................................................................................................................................................................ 25
Reader Response ................................................................................................................................................................................ 26
Product Identification System............................................................................................................................................................... 27
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DS70329B-page 2
©
2008 Microchip Technology Inc.
MRF24J40MA
1.0
DEVICE OVERVIEW
The MRF24J40MA is a 2.4 GHz IEEE Std. 802.15.4™
compliant, surface mount module with integrated
crystal, internal voltage regulator, matching circuitry
and PCB antenna. The MRF24J40MA module oper-
ates in the non-licensed 2.4 GHz frequency band and
is FCC, IC and ETSI compliant. The integrated module
design frees the integrator from extensive RF and
antenna design, and regulatory compliance testing,
allowing quicker time to market.
The MRF24J40MA module is compatible with
Microchip’s ZigBee
®
, MiWi™ and MiWi P2P software
stacks. Each software stack is available as a free
download, including source code, from the Microchip
web site http://www.microchip.com/wireless.
The MRF24J40MA module has received regulatory
approvals for modular devices in the United States
(FCC), Canada (IC) and Europe (ETSI). Modular
approval removes the need for expensive RF and
antenna design and allows the end user to place the
MRF24J40MA module inside a finished product and
not require regulatory testing for an intentional radiator
(RF transmitter). See
Section 3.0 “Regulatory
Approval”
for specific requirements to be followed by
the integrator.
1.1
Interface Description
Figure 1-1 shows a simplified block diagram of the
MRF24J40MA module. The module is based on the
Microchip Technology MRF24J40 IEEE 802.15.4™
2.4 GHz RF Transceiver IC. The module interfaces to
many popular Microchip PIC
®
microcontrollers via a
4-wire serial SPI interface, interrupt, wake, Reset,
power and ground, as shown in Figure 1-2. Table 1-1
provides the pin descriptions.
Data communications with the MRF24J40MA module
are documented in the
“MRF24J40 IEEE 802.15.4™
2.4 GHz RF Transceiver Data Sheet”
(DS39776). Refer
to the MRF24J40 Data Sheet for specific serial
interface protocol and register definitions.
FIGURE 1-1:
MRF24J40MA BLOCK DIAGRAM
MRF24J40MA IEEE Std. 802.15.4™ Module
MRF24J40
Digital
I/O
Interface
PCB
Antenna
Matching
Circuitry
Physical
MAC
Power
Management
SPI
Power
20 MHz
Crystal
©
2008 Microchip Technology Inc.
DS70329B-page 3
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