• Single Operating Voltage: 2.1V to 3.6V (3.3V
typical)
• Temperature Range: -40°C to +85°C
• Low-Power Consumption
• Programmable RF Communication Bit Rate up to
300 kbps with FSK Modulation, 10937 bps with
LoRa Technology Modulation
• Integrated MCU, Crystal, EUI-64 Node Identity
Serial EEPROM, Radio Transceiver with Analog
Front End, Matching Circuitry
• 14 GPIOs for Control and Status, Shared with 13
Analog Inputs
RF/Analog Features
• Low-Power Long Range Transceiver Operating in
the 433 MHz and 868 MHz Frequency Bands
• High Receiver Sensitivity: Down to -146 dBm
• TX Power: Adjustable up to +14 dBm high
Efficiency PA
• FSK, GFSK, and LoRa Technology Modulation
• IIP3 = -11 dBm
• Up to 15 km Coverage at Suburban and up to 5
km Coverage at Urban Area
Description
Microchip’s RN2483 Low-Power Long Range LoRa
Technology Transceiver module provides an easy-touse, low-power solution for long range wireless data
transmission. The advanced command interface offers
rapid time to market.
The RN2483 module complies with the LoRaWAN
Class A protocol specifications. It integrates RF, a
baseband controller, command Application
Programming Interface (API) processor, making it a
complete long range solution.
The RN2483 module is suitable for simple long range
sensor applications with external host MCU.
The Microchip WebSite ........................................................................................................................................................................ 17
Customer Change Notification Service ................................................................................................................................................ 17
Customer Support ................................................................................................................................................................................ 17
It is our intention to provide our valued customers with the best documentation possible to ensure successful use of your Microchip
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Most Current Data Sheet
To obtain the most up-to-date version of this data sheet, please register at our Worldwide Web site at:
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The last character of the literature number is the version number, (e.g., DS30000000A is version A of document DS30000000).
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An errata sheet, describing minor operational differences from the data sheet and recommended workarounds, may exist for current
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DS50002346D-page 2 2015-2019 Microchip Technology Inc.
Page 3
RN2483
1
GND
2
UART_RTS
3
UART_CTS
4
RESERVED
5
RESERVED
6
UART_TX
7
UART_RX
8
GND
GND
9
GPIO13
10
GPIO12
11
GND
20
GND
12
VDD
13
GPIO11
14
GPIO10
15
NC
16
NC
17
NC
18
NC
19
NC
40
39
38
37
36
35
34
33
32
31
30
21
29
28
2726252423
22
GND
GND
GND
GND
GND
GND
RFH
RFL
VDD
GND
47
46
45
44
43
42
41
GND
NC
3*&B,17
3*'B,17
RESET
GPIO0
GPIO1
GPIO2
GPIO3
GPIO4
GPIO5
GPIO6
GPIO7
GPIO8
GPIO9
NC
RN2483 Module
Host MCU
UART
MCU
Command Processor
14 GPIO Pins
I
2
C
LoRaWAN™ Protocol Stack
Real-Time
Clock
EUI-64
EEPROM
User Hardware:
Status LEDs, Switches, Logic IOs, etc.
32768 Hz
Crystal
Antenna
433 MHz
Antenna
868 MHz
SPI
LoRa® Technology
Radio
1.0DEVICE OVERVIEW
The RN2483 transceiver module features LoRa
Technology RF modulation, which provides long range
spread spectrum communication with high interference
immunity.
Using LoRa Technology modulation technique,
RN2483 can achieve a receiver sensitivity of -146 dBm.
The high sensitivity combined with the integrated
+14 dBm power amplifier yields industry leading link
budget, which makes it optimal for applications
requiring extended range and robustness.
FIGURE 1-1:RN2483 TOP VIEW
LoRa Technology modulation also provides significant
advantages in both blocking and selectivity compared to
the conventional modulation techniques, solving the
traditional design compromise between extended range,
interference immunity, and low-power consumption.
The RN2483 module delivers exceptional phase noise,
selectivity, receiver linearity, and IIP3 for significantly
lower power consumption. Figure 1-1, Figure 1-2, and
Figure 1-3 show the top view, the pinout, and the block
Table 2-1 provides the general specifications for the
module. Ta b le 2- 2 , Table 2-3, and Tab l e 2- 4 provide
the electrical characteristics, current consumption, and
dimensions of the module, respectively. Table 2-5
shows the RF output power calibration data. Table 2-6
shows the RF output power at different supply voltages
and temperatures.
TABLE 2-1:GENERAL SPECIFICATIONS
SpecificationDescription
Frequency Band863.000 MHz to 870.000 MHz; 433.050 MHz to 434.790 MHz
Modulation MethodFSK, GFSK, and LoRa
Maximum Over-the-Air Data Rate300 kbps with FSK modulation; 10937 bps with LoRa Technology modulation
RF ConnectionBoard edge connection
InterfaceUART
Operation RangeUp to 15 km coverage at suburban; up to 5 km coverage at urban area
(1)
Sensitivity at 1% PER-146 dBm
RF TX PowerAdjustable up to max. 10 dBm on 433 MHz band (limited to meet regulations);
max. 14 dBm on the 868 MHz band
Temperature (operating) -40°C to +85°C
Temperature (storage)-40°C to +115°C
Humidity10% ~ 90% non-condensing
Note 1: Dependent on modulation settings, Receiver Bandwidth (RBW), and Spreading Factor (SF).
2: TX power is adjustable. For more information, refer to the “RN2483 LoRa
Reference User’s Guide” (DS40001784).
®
Technology modulation
(2)
®
Technology Module Command
TABLE 2-2:ELECTRICAL CHARACTERISTICS
ParameterMin.Typ.Max.Units
Supply Voltage2.1—3.6V
Voltage on any pin with respect to VSS (except VDD) and RESET
Voltage on VDD with respect to VSS-0.3—3.9V
Voltage on RESET
Input Clamp Current (IIK) (VI < 0 or VI > VDD)——+/-20mA
Output Clamp Current (IOK) (VO < 0 or VO > VDD) ——+/-20mA
GPIO sink/source current each——25/25mA
Total GPIO sink/source current——200/185mA
RAM Data Retention Voltage (in Sleep mode or Reset state)1.5——V
VDD Start Voltage to ensure internal Power-on Reset signal——0.7V
VDD Rise Rate to ensure internal Power-on Reset signal0.05——V/ms
Brown-out Reset Voltage1.751.92.05V
Logic Input Low Voltage——0.15 x VDDV
Logic Input High Voltage0.8 x VDD——V
Input Leakage at <25°C
(VSS<VPIN<VDD, Pin at high-impedance)
Input Leakage at +60°C
(VSS<VPIN<VDD, Pin at high-impedance)
Input Leakage at +85°C
(VSS<VPIN<VDD, Pin at high-impedance)
RF Input Level——+10dBm
with respect to VSS0—+11V
-0.3—VDD + 0.3V
—0.150nA
—0.7100nA
—4200nA
DS50002346D-page 6 2015-2019 Microchip Technology Inc.
TABLE 2-5:OUTPUT POWER OF TX POWER SETTING (CONTINUED)
BandTX Power SettingOutput Power (dBm)
-3-3.514.7
-2-2.315.1
-1-1.315.6
0-2.315.8
1-1.216.4
2-0.117.0
31.017.7
42.118.5
53.219.4
433MHz
64.320.3
75.421.4
86.522.3
97.623.3
108.824.5
119.925.8
1210.927.3
1311.928.8
1412.930.7
1513.632.9
Typical Supply Current at
3.3V (mA)
TABLE 2-6:OUTPUT POWER OF SUPPLY VOLTAGE AND TEMPERATURE
Temperature
(°C)
-4010.513.813.7
2510.014.114.6
859.113.413.7
VDD = 2.1VVDD = 3.3VVDD = 3.6V
Typical Output Power at 868 MHz (dBm)
TABLE 2-7:OUTPUT POWER OF SUPPLY VOLTAGE AND TEMPERATURE
Temperature
(°C)
-4010.113.213.2
259.713.614.2
859.313.013.4
VDD = 2.1VVDD = 3.3VVDD = 3.6V
Typical Output Power at 434 MHz (dBm)
DS50002346D-page 8 2015-2019 Microchip Technology Inc.
Page 9
3.0TYPICAL HARDWARE CONNECTIONS
868 MHz Antenna434 MHz Antenna
GNDGND
VCC
VCC
GNDGND
1
2
3
4
5
6
ICSP
10k
VCCVCC
GND
220R
220R
GND
VCC
220R
3
1
2
GND
GND
VCC
MCU
GPIOs
Transistor output
Analog
Sensor
0-VCC
VCC
GND
Indicator LEDs
GND
Logic input
2
3
1
VCC
GND
1
UART_RTS
2
UART_CTS
3
RESERVED
4
RESERVED
5
UART_TX
6
UART_RX
7
GND
8
GND
11
VDD
12
NC
15
NC
16
NC
17
NC
18
NC
19
GND
20
GND21GND
22
RFH
23
GND
24
RFL
25
GND26GND
27
GND
28
NC
29
PGC_INT
30
PGD_INT
31
RESET
32
GND
33
VDD
34
GPIO0
35
GND
41
NC
42
GND
47
GND
UA
S
U
_
CTS
RES
RESERV
UA
TX
U
GND
GND
VDD
C
C
C
C
C
GND
NNNNN
G
C
_
INT
INT
RESET
G
V
GPIO
G
C
G
GPIO1
36
GPIO2
37
GPIO3
38
GPIO4
39
GPIO5
40
GPIO6
43
GPIO7
44
GPIO8
45
GPIO9
46
GPIO11
13
GPIO10
14
GPIO12
10
GPIO13
9
RN2483
Figure 3-1 shows the typical hardware connections.
FIGURE 3-1:HARDWARE CONNECTIONS
RN2483
®
Technology Module
3.1Interface to Host MCU
The RN2483 module has a dedicated UART interface
to communicate with a host controller. Optional
handshake lines are supported in future firmware
releases. The “RN2483 LoRaCommand Reference User’s Guide” (DS40001784)
provides a detailed UART command description.
Table 3-1 shows the default settings for the UART
communication.
TABLE 3-1: DEFAULT UART SETTINGS
SpecificationDescription
Baud Rate57600 bps
Packet Length8 bit
Parity BitNo
Stop Bits1 bit
Hardware Flow ControlNo
ND
N
PGC
PGD_
ND
DD
ND
N
ND
0
ART_RX
RT_
ERVED
ART
RT_RT
N
N
N
N
N
ED
3.2GPIO Pins (GPIO0-GPIO13)
The module has 14 GPIO pins. These lines can be
connected to switches, LEDs, and relay outputs. The
pins can be either logic inputs or outputs, and some
pins (see Ta bl e 1- 1) have analog input capability that
can be accessed via the module firmware. These pins
have limited sink and source capabilities. Electrical
characteristics are described in Tab l e 2- 2. For more
information, see “RN2483 LoRaCommand Reference User’s Guide” (DS40001784).
3.3RF Connections (RFL, RFH)
RFL is the RF analog port for the lower frequency band
(433 MHz) while RFH is for the higher frequency band
(868 MHz). When routing RF paths, use proper strip
lines with an impedance of 50 Ohm.
However, for backup firmware update purposes the
user can place a 6-pin ICSP header on their host PCB
with PGC_INT (Pin 30), PGD_INT (Pin 31), RESET
(Pin 32), power and ground.
During High Voltage In-Circuit Serial Programming
mode, the RESET pin is driven with high-voltage (9V),
therefore protection may be necessary for sensitive
devices.
®
DS50002346D-page 10 2015-2019 Microchip Technology Inc.
Page 11
4.0PHYSICAL DIMENSIONS
Figure 4-1 and Figure 4-2 illustrate the physical
dimensions and the recommended PCB layout for the
RN2483 module.
The RN2483 modular transmitter is certified with a PCB
edge SMA connector and micro-strip trace layout as
shown in Figure 5-1 and Figure 5-2. The two RF paths
FIGURE 5-1:RF TRACE ROUTING (TOP LAYER)
are axisymmetric with the same linear dimensions.
Gerber files are available on the RN2483 product web
page at www.microchip.com/RN2483.
FIGURE 5-2:RF TRACE ROUTING (BOTTOM LAYER)
DS50002346D-page 12 2015-2019 Microchip Technology Inc.
Page 13
RN2483
6.0REGULATORY APPROVAL
This section outlines the regulatory information for the
RN2483 module for Europe.
6.1Europe
The RN2483 module is an Radio Equipment Directive
(RED) assessed radio module that is CE marked and
has been manufactured and tested with the intention of
being integrated into a final product.
The RN2483 module has been tested to RED
2014/53/EU Essential Requirements for Health and
Safety (Article (3.1(a)), Electro Magnetic Compatibility
(EMC) (Article 3.1(b)), and Radio (Article 3.2) and are
summarized in Tab l e 6 -1 .
The ETSI provides guidance on modular devices in
“Guide to the application of harmonised standards cov-
ering Article 3.1(b) and Article 3.2 of the Directive 2014/
53/EURED to multi-radio and combined radio and non-
listed in Table 6-1, the module shall be
installed in accordance with the installation instructions in this datasheet and shall
not be modified. When integrating a radio
module into a completed product the integrator becomes the manufacturer of the
final product and is therefore responsible
for demonstrating compliance of the final
product with the essential requirements
against the RED.
.
6.1.1LABELING AND USER
INFORMATION REQUIREMENTS
The label on the final product which contains the
RN2483 module must follow CE marking requirements.
From ETSI Guidance Note EG 203367, section 6.1
Non-radio products are combined with a radio product:
If the manufacturer of the combined equipment installs
the radio product in a host non-radio product in equivalent assessment conditions (i.e. host equivalent to the
one used for the assessment of the radio product) and
according to the installation instructions for the radio
product, then no additional assessment of the combined equipment against article 3.2 of the RED is
required.
The European Compliance Testing listed in Table 6-1,
was performed using the Integral PCB antenna
6.1.3SIMPLIFIED EU DECLARATION OF
CONFORMITY
Hereby, Microchip Technology Inc. declares that the
radio equipment type RN2483 is in compliance with
Directive 2014/53/EU.
The full text of the EU declaration of conformity, for this
product, is available at: http://www.microchip.com/
design-centers/wireless-connectivity.
6.1.4HELPFUL WEBSITES
A document that can be used as a starting point in
understanding the use of Short Range Devices (SRD)
in Europe is the European Radio Communications
Committee (ERC) Recommendation 70-03 E, which
can be downloaded from the European Communications Committee (ECC) at: http://www.ecodocdb.dk/
Additional helpful web sites are:
• Radio Equipment Directive (2014/53/EU): https://
DS50002346D-page 16 2015-2019 Microchip Technology Inc.
Page 17
RN2483
THE MICROCHIP WEBSITE
Microchip provides online support via our WWW site at
www.microchip.com. This website is used as a means
to make files and information easily available to
customers. Accessible by using your favorite Internet
browser, the website contains the following information:
• Product Support – Data sheets and errata,
application notes and sample programs, design
resources, user’s guides and hardware support
documents, latest software releases and archived
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• General Technical Support – Frequently Asked
Questions (FAQ), technical support requests,
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program member listing
• Business of Microchip – Product selector and
ordering guides, latest Microchip press releases,
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Microchip sales offices, distributors and factory
representatives
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SERVICE
Microchip’s customer notification service helps keep
customers current on Microchip products. Subscribers
will receive e-mail notification whenever there are
changes, updates, revisions or errata related to a
specified product family or development tool of interest.
To register, access the Microchip website at
www.microchip.com. Under “Support”, click on
“Customer Change Notification” and follow the
registration instructions.
CUSTOMER SUPPORT
Users of Microchip products can receive assistance
through several channels:
• Distributor or Representative
• Local Sales Office
• Field Application Engineer (FAE)
• Technical Support
Customers should contact their distributor,
representative or Field Application Engineer (FAE) for
support. Local sales offices are also available to help
customers. A listing of sales offices and locations is
included in the back of this document.
Technical support is available through the website
at: http://microchip.com/support
DS50002346D-page 20 2015-2019 Microchip Technology Inc.
Page 21
Note the following details of the code protection feature on Microchip devices:
YSTEM
CERTIFIED BY DNV
== ISO/TS 16949==
•Microchip products meet the specification contained in their particular Microchip Data Sheet.
•Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the
intended manner and under normal conditions.
•There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our
knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data
Sheets. Most likely, the person doing so is engaged in theft of intellectual property.
•Microchip is willing to work with the customer who is concerned about the integrity of their code.
•Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not
mean that we are guaranteeing the product as “unbreakable.”
Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our
products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts
allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.
Information contained in this publication regarding device
applications and the like is provided only for your convenience
and may be superseded by updates. It is your responsibility to
ensure that your application meets with your specifications.
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®
MCUs and dsPIC® DSCs, KEELOQ
®
code hopping
QUALITY MANAGEMENT S
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