Digi XBEE-PRO S3 User manual

XBee®-PRO 900HP/XSC RF Modules
S3 and S3B
User Guide

Revision history—90002173
Revision Date Description
S October
2016
Replaced the Programmable bootloader section with the Programmable XBee
SDK section. Updated the indoor range spec. Corrected the SPand ST
parameter default values.
T May
2018
Added note on range estimation. Changed ICto ISED.
U July
2018
Added the 0x00, 0x80 and 0x89 frames for the 900HP.
V June
2019
Added FCC publication 996369 related information.
W January
2020
Added IFETEL certifications.
Trademarks and copyright
Digi, Digi International, and the Digi logo are trademarks or registered trademarks in the United
States and other countries worldwide. All other trademarks mentioned in this document are the
property of their respective owners.
© 2020 Digi International Inc. All rights reserved.
Disclaimers
Information in this document is subject to change without notice and does not represent a
commitment on the part of Digi International. Digi provides this document “as is,” without warranty of
any kind, expressed or implied, including, but not limited to, the implied warranties of fitness or
merchantability for a particular purpose. Digi may make improvements and/or changes in this manual
or in the product(s) and/or the program(s) described in this manual at any time.
Warranty
To view product warranty information, go to the following website:
www.digi.com/howtobuy/terms
Customer support
Gather support information: Before contacting Digi technical support for help, gather the following
information:
Product name and model
Product serial number (s)
Firmware version
Operating system/browser (if applicable)
XBee®-PRO 900HP/XSC RF Modules 2

Logs (from time of reported issue)
Trace (if possible)
Description of issue
Steps to reproduce
Contact Digi technical support: Digi offers multiple technical support plans and service packages.
Contact us at +1 952.912.3444 or visit us at www.digi.com/support.
Feedback
To provide feedback on this document, email your comments to
techcomm@digi.com
Include the document title and part number (XBee®-PRO 900HP/XSC RF Modules, 90002173 W) in the
subject line of your email.
XBee®-PRO 900HP/XSC RF Modules 3

Contents
About the XBee-PRO 900HP RF Module
User guide structure 13
Technical specifications
Performance specifications 16
Power requirements 16
General specifications 17
Networking specifications 17
Regulatory conformity summary 17
Serial communication specifications 18
UART pin assignments 18
SPI pin assignments 18
GPIO specifications 18
Secondary processor specifications 19
Hardware
Mechanical drawings 22
Pin signals 23
Design notes 25
Power supply design 25
Board layout 25
Antenna performance 25
Recommended pin connections 26
Module operation for the programmable variant 27
Programmable XBee SDK 29
Configure the XBee-PRO 900HP RF Module
Software libraries 31
Configure the device using XCTU 31
Over-the-air firmware updates 31
Distribute the new application 31
Verify the new application 32
Install the application 32
XBee Multi Programmer 33
XBee®-PRO 900HP/XSC RF Modules 4

XBee®-PRO 900HP/XSC RF Modules 5
Operation
Basic operational design 35
Serial interface 35
UART data flow 35
Serial data 36
Configuration considerations 36
Select the serial port 36
Force UART operation 37
Select the SPI port 37
Serial port selection 38
Serial receive buffer 38
Serial transmit buffer 38
UART flow control 38
CTS flow control 38
RTS flow control 38
SPI operation
SPI communications 41
SPI implementation 41
SPI signals 42
Full duplex operation 42
Low power operation 43
SPI and API mode 43
SPI parameters 44
Modes
Serial modes 46
Transparent operating mode 46
API operating mode 46
Comparing Transparent and API modes 46
Modes of operation 48
Idle mode 48
Transmit mode 48
Receive mode 48
Command mode 48
Sleep mode 51
Sleep modes
About sleep modes 53
Asynchronous modes 53
Synchronous modes 53
Normal mode 53
Asynchronous pin sleep mode 54
Asynchronous cyclic sleep mode 54
Asynchronous cyclic sleep with pin wake up mode 54
Synchronous sleep support mode 54
Synchronous cyclic sleep mode 55
The sleep timer 55
Indirect messaging and polling 55

XBee®-PRO 900HP/XSC RF Modules 6
Indirect messaging 55
Polling 56
Sleeping routers 56
Sleep coordinator sleep modes in the DigiMesh network 56
Synchronization messages 57
Become a sleep coordinator 59
Select sleep parameters 61
Start a sleeping synchronous network 61
Add a new node to an existing network 62
Change sleep parameters 63
Rejoin nodes that lose sync 63
Diagnostics 64
Query sleep cycle 64
Sleep status 64
Missed sync messages command 65
Sleep status API messages 65
Networking methods
The MAC and PHY layers 67
64-bit addresses 67
Make a unicast transmission 68
Make a broadcast transmission 68
Delivery methods 68
Point to Point / Point to Multipoint (P2MP) 68
Repeater/directed broadcast 69
DigiMesh networking 70
AT commands
Special commands 76
AC (Apply Changes) 76
FR (Force Reset) 76
RE (Restore Defaults) 76
WR (Write) 76
MAC/PHY commands 77
AF (Available Frequencies) 77
CM (Channel Mask) 77
MF (Minimum Frequency Count) 78
HP (Preamble ID) 78
ID (Network ID) 79
MT(Broadcast Multi-Transmits) 79
PL (TX Power Level) 79
RR (Unicast Mac Retries) 80
ED (Energy Detect) 80
Diagnostic commands 80
BC (Bytes Transmitted) 80
DB (Last Packet RSSI) 80
ER (Received Error Count) 81
GD (Good Packets Received) 81
EA (MAC ACK Failure Count) 81
TR (Transmission Failure Count) 82
UA (MAC Unicast Transmission Count) 82
%H (MAC Unicast One Hop Time) 82

XBee®-PRO 900HP/XSC RF Modules 7
%8 (MAC Broadcast One Hop Time) 82
Network commands 83
CE (Node Messaging Options) 83
BH (Broadcast Hops) 83
NH (Network Hops) 83
NN (Network Delay Slots) 84
MR (Mesh Unicast Retries) 84
RN (Delay Slots) 84
Addressing commands 85
SH (Serial Number High) 85
SL (Serial Number Low) 85
DH (Destination Address High) 85
DL (Destination Address Low) 85
TO (Transmit Options) 86
NI (Node Identifier) 86
NT (Node Discover Time) 87
NO (Node Discovery Options) 87
CI (Cluster ID) 88
DE (Destination Endpoint) 88
SE (Source Endpoint) 88
Addressing discovery/configuration commands 88
AG (Aggregator Support) 88
DN (Discover Node) 89
ND (Network Discover) 89
FN (Find Neighbors) 90
Security commands 91
EE (Security Enable) 91
KY (AES Encryption Key) 91
Serial interfacing commands 91
BD (Baud Rate) 91
NB (Parity) 92
SB (Stop Bits) 92
RO (Packetization Timeout) 93
FT (Flow Control Threshold) 93
AP (API Mode) 93
AO (API Options) 94
I/O settings commands 94
CB (Commissioning Pushbutton) 94
D0 (DIO0/AD0) 94
D1 (DIO1/AD1) 95
D2 (DIO2/AD2) 95
D3 (DIO3/AD3) 96
D4 (DIO4) 96
D5 (DIO5/ASSOCIATED_INDICATOR) 97
D6 (DIO6/RTS) 97
D7 (DIO7/CTS) 98
D8 (DIO8/SLEEP_REQUEST) 98
D9 (DIO9/ON_SLEEP) 99
P0 (DIO10/RSSI/PWM0 Configuration) 99
P1 (DIO11/PWM1 Configuration) 100
P2 (DIO12 Configuration) 100
P3 (DIO13/DOUT) 101
P4 (DIO14/DIN) 101
PD (Pull Up/Down Direction) 101
PR (Pull-up/Down Resistor Enable) 102

XBee®-PRO 900HP/XSC RF Modules 8
M0 (PWM0 Duty Cycle) 102
M1 (PWM1 Duty Cycle) 103
LT (Associate LED Blink Time) 103
RP (RSSI PWM Timer) 103
I/O sampling commands 103
AV (Analog Voltage Reference) 103
IC (DIO Change Detection) 104
IF (Sleep Sample Rate) 105
IR (I/O Sample Rate) 105
IS (Force Sample) 105
TP (Board Temperature) 106
%V (Voltage Supply Monitoring) 106
Sleep commands 106
SM (Sleep Mode) 106
SO (Sleep Options) 107
SN (Number of Sleep Periods) 107
SP (Sleep Period) 108
ST (Wake Time) 108
WH (Wake Host Delay) 108
Diagnostic - sleep status/timing commands 108
SS (Sleep Status) 109
OS (Operating Sleep Time) 109
OW (Operating Wake Time) 109
MS (Missed Sync Messages) 110
SQ (Missed Sleep Sync Count) 110
Command mode options 110
CC (Command Character) 110
CN (Exit Command Mode) 110
CT (Command Mode Timeout) 111
GT (Guard Times) 111
Firmware commands 111
VL (Version Long) 111
VR (Firmware Version) 111
HV (Hardware Version) 112
HS (Hardware Series) 112
DD (Device Type Identifier) 112
NP (Maximum Packet Payload Bytes) 112
CK (Configuration CRC) 113
Operate in API mode
API mode overview 115
API frame format 115
API operation (AP parameter = 1) 115
API operation-with escaped characters (AP parameter = 2) 115
Data bytes that need to be escaped: 116
Length 116
Frame data 116
API serial exchanges 117
AT commands 117
Transmit and Receive RF data 118
Remote AT commands 118
Device Registration 119
Calculate and verify checksums 119
Example 119

XBee®-PRO 900HP/XSC RF Modules 9
Frame descriptions
Legacy TX Request frame - 0x00 121
AT Command frame - 0x08 122
AT Command - Queue Parameter Value frame - 0x09 124
Transmit Request frame - 0x10 126
Explicit Addressing Command frame - 0x11 129
Remote AT Command Request frame - 0x17 132
Legacy RX Indicator frame - 0x80 134
AT Command Response frame - 0x88 136
TX Status frame - 0x89 138
Modem Status frame - 0x8A 139
Transmit Status frame - 0x8B 140
Route Information Packet frame - 0x8D 142
Aggregate Addressing Update frame - 0x8E 145
Receive Packet frame - 0x90 147
Explicit Rx Indicator frame - 0x91 149
I/O Data Sample Rx Indicator frame - 0x92 152
Node Identification Indicator frame - 0x95 154
Remote Command Response frame - 0x97 157
Advanced application features
Remote configuration commands 160
Send a remote command 160
Apply changes on remote devices 160
Remote command responses 160
Network commissioning and diagnostics 160
Configure devices 160
Network link establishment and maintenance 161
Place devices 162
Device discovery 162
Link reliability 163
Commissioning pushbutton and associate LED 165
I/O line monitoring 168
I/O samples 168
Queried sampling 168
Periodic I/O sampling 171
Detect digital I/O changes 171
General Purpose Flash Memory
General Purpose Flash Memory 173
Access General Purpose Flash Memory 173
General Purpose Flash Memory commands 174
PLATFORM_INFO_REQUEST (0x00) 174
PLATFORM_INFO (0x80) 174
ERASE (0x01) 175
ERASE_RESPONSE (0x81) 175
WRITE (0x02) and ERASE_THEN_WRITE (0x03) 176
WRITE _RESPONSE (0x82) and ERASE_THEN_WRITE_RESPONSE (0x83) 177
READ (0x04) 177
READ_RESPONSE (0x84) 178
FIRMWARE_VERIFY (0x05) and FIRMWARE_VERIFY_AND_INSTALL(0x06) 178

XBee®-PRO 900HP/XSC RF Modules 10
FIRMWARE_VERIFY_RESPONSE (0x85) 179
FIRMWARE_VERIFY _AND_INSTALL_RESPONSE (0x86) 179
Work with flash memory 180
XSC firmware
XBee-PRO XSC RF Module overview 182
Pin signals 182
Electrical characteristics 183
Timing specifications 184
XBee-PRO XSC specifications
Performance specifications 188
Power requirements 188
Networking specifications 189
General specifications 189
Antenna options 189
Regulatory conformity summary 190
XBee-PRO XSC RF Module operation
Serial communications 192
UART-interfaced data flow 192
Serial data 192
Flow control 192
Data In (DIN) buffer and flow control 193
Data Out (DO) buffer and flow control 194
Operating modes 194
Idle mode 194
Transmit mode 195
Receive mode 195
Sleep mode 195
Command mode 198
Configuration and commands
Programming examples 203
Connect the device to a PC 203
Send binary commands 203
Example 203
Special commands 204
FR (Force Reset) 204
PL (TX Power Level) 204
Command mode options 204
AT (Guard Time After) 205
BT (Guard Time Before) 205
CC (Command Sequence Character) 205
CD (DO3 Configuration) 206
CN (Exit Command Mode) 206
CT (Command Mode Timeout) 207
E0 (Echo Off) 207
E1 (Echo On) 207

XBee®-PRO 900HP/XSC RF Modules 11
PC (Power-up to Transparent operating mode) 208
Networking and security commands 208
AM (Auto-set MY) 208
MD (RF Mode) 209
MY (Source Address) 209
Network commands 210
DT (Destination Address) 210
HP (Preamble ID) 210
HT (Time before Wake-up Initializer) 211
ID (Network ID) 211
MK (Address Mask) 211
RN (Delay Slots) 212
RR (Unicast Mac Retries) 212
SY (Time Before Initialization) 213
TT (Streaming Limit) 214
Serial interfacing commands 214
BD (Interface Data Rate) 214
CS (DO2 Configuration) 215
FL (Software Flow Control) 216
FT (Flow Control Threshold) 217
NB (Parity) 217
PK (Maximum RF Packet Size) 217
RB (Packetization Threshold) 218
RO (Packetization Timeout) 218
RT (DI2 Configuration) 219
Diagnostic commands 219
ER (Receive Count Error) 219
GD (Receive Good Count) 220
RE (Restore Defaults) 220
RP (RSSI PWM Timer) 221
RZ (DI Buffer Size) 221
RS (RSSI) 222
SH (Serial Number High) 222
SL (Serial Number Low) 222
TR (Transmission Failure Count) 223
VR (Firmware Version - Short) 223
Sleep commands 224
FH (Force Wakeup Initializer) 224
HT (Time before Wake-up Initializer) 224
LH (Wakeup Initializer Timer) 225
PW (Pin Wakeup) 225
SM (Sleep Mode) 226
ST (Wake Time) 226
Network configurations
Network topologies 229
Point-to-point networks 229
Point-to-multipoint networks 229
Peer to peer networks 230
Addressing 231
Address recognition 232
Basic communications 232
Streaming mode (default) 232
Repeater mode 233

XBee®-PRO 900HP/XSC RF Modules 12
Acknowledged mode 237
S3B hardware certifications
Agency certifications - United States 241
United States (FCC) 241
OEM labeling requirements 241
XBee-PRO 900HP and XBee-PRO XSC 241
FCC notices 241
Limited modular approval 242
Fixed base station and mobile applications 242
Portable applications and SAR testing 243
RF exposure statement 243
FCC-approved antennas (900 MHz) 244
Antennas approved for use with the XBee-PRO 900HP RF Module 244
FCC publication 996369 related information 251
ISED (Innovation, Science and Economic Development Canada) 253
Labeling requirements 253
Contains IC: 1846A-XB900HP 253
Transmitters for detachable antennas 253
Detachable antenna 253
Brazil ANATEL 254
Mexico IFETEL 255
OEM labeling requirements 255
IDA (Singapore) certification 255
Labeling 255
Frequency band 256
Antenna gain 256
Legacy S3B hardware certifications
Agency certifications - United States 258
United States (FCC) 258
OEM labeling requirements 258
XBee PRO S3 258
XBee PRO S3B 258
FCC notices 259
Limited modular approval 259
Fixed base station and mobile applications 260
Portable applications and SAR testing 260
RF exposure statement 260
ISED (Innovation, Science and Economic Development Canada) 261
Labeling requirements 261
Contains IC: 1846A-XB900HP 261
Contains IC: 1846A-XBEEXSC or Contains IC: 1846A-XBPS3B 261
Antenna options: 900 MHz antenna listings 262
Transmitters with detachable antennas 267
Detachable antenna 268
Brazil ANATEL 269

About the XBee-PRO 900HP RF Module
The XBee-PRO 900HP RF Modules consist of firmware loaded onto XBee-PRO S3B hardware. These
embedded RF devices provide wireless connectivity to end-point devices in mesh networks.
You can build networks up to 128 nodes using the XBee devices. For larger networks of up to 1,000 or
more nodes, we offer RF optimization services to assist with proper network configuration.
For more information network configuration, contact Digi Technical Support.
Note The XBee-PRO 900HP RF Module is not backward compatible with the legacy XBee-PRO 900
(Part Number: XBP09-DP…) or XBee-PRO DigiMesh 900 (Part Number: XBP09-DM…) RF modules.
The XBee-PRO S3B hardware consists of:
nOne Energy Micro EFM®32G230F128 microcontroller
nOne Analog Devices ADF7023 radio transceiver
nOne RF power amplifier
nOne NXP MC9S08QE32®microcontroller, only in the programmable version of the XBee
User guide structure
This user guide contains documentation for two RF protocols: XStream Compatible (XSC) and 900HP.
The XSC firmware is provided for customers who need compatibility with existing networks that need
to be 9XStream compatible. Customers who do not require this compatibility should not use the XSC
firmware, but rather the newer 900HP firmware.
The XSC firmware section at the back of this user guide contains documentation for the XSC firmware
only. All other firmware documentation in the user guide is applicable to the 900HP firmware only. For
more information about XSC firmware see the XSC firmware section.
The XBee-PRO 900HP RF Module is not backward compatible with the legacy XBee-PRO 900 (Part
Number: XBP09-DP…) or XBee-PRO DigiMesh 900 (Part Number: XBP09-DM…) RF Modules.
The following table describes how to use this user guide based on the Digi part number for the
module:
XBee®-PRO 900HP/XSC RF Modules 13

About the XBee-PRO 900HP RF Module User guide structure
XBee®-PRO 900HP/XSC RF Modules 14
Digi Part
Numbers FCC ID
Hardware
Platform
Pre-
installed
Firmware
Firmware
Available
Regulatory
Information
XBP09-XC… MCQ-
XBEEXSC
S31XSC XSC Legacy S3B hardware
certifications
XBP9B-XC*T-001 (revision G
and earlier)
XBP9B-XC*T-002 (revision G
and earlier)
XBP9B-XC*T-021 (revision F
and earlier)
XBP9B-XC*T-022 (revision F
and earlier)
MCQ-
XBPS3B
S3B XSC XSC Legacy S3B hardware
certifications
XBP9B-XC*T-001 (revision H
and later)
XBP9B-XC*T-002 (revision H
and later)
XBP9B-XC*T-021 (revision G
and later)
XBP9B-XC*T-022 (revision G
and later)
all other part numbers
beginning XBP9B-XC...
MCQ-
XB900HP
S3B XSC XSC /
900HP
XBP9B-D… MCQ-
XB900HP
S3B 900HP XSC /
900HP
1The S3 hardware variant is a legacy design that is obsolete. New and old designs should use the S3B hardware
variant.

Technical specifications Performance specifications
XBee®-PRO 900HP/XSC RF Modules 16
Performance specifications
This table describes the performance specifications for the devices.
Note Range figure estimates are based on free-air terrain with limited sources of interference. Actual
range will vary based on transmitting power, orientation of transmitter and receiver, height of
transmitting antenna, height of receiving antenna, weather conditions, interference sources in the
area, and terrain between receiver and transmitter, including indoor and outdoor structures such as
walls, trees, buildings, hills, and mountains.
Specification Value
Ideal RF line-of-sight
range
10 kb/s: up to 9 miles (15.5 km)
200 kb/s: up to 4 miles (6.5 km)
(with 2.1 dB dipole antennas)
Transmit power output 24 dBm (250 mW) (software selectable)
RF data rate (high) 200 kb/s
RF data rate (low) 10 kb/s
Serial UART interface Complementary metal–oxide–semiconductor (CMOS) Serial universal
asynchronous receiver/transmitter (UART), baud rate stability of <1%
Serial interface data
rate (software
selectable)
9600-230400 baud
Receiver sensitivity
(typical)
-101 dBm, high data rate
-110 dBm, low data rate
Power requirements
The following table describes the power requirements for the XBee-PRO 900HP RF Module.
Specification Value
Supply voltage 2.1 to 3.6 VDC1
Transmit current PL = 4: 215 mA typical, (290 mA max)
PL = 3: 160 mA typical
PL = 2: 120 mA typical
PL = 1: 95 mA typical
PL = 0: 60 mA typical
Idle/receive current 29 mA typical at 3.3 V (35 mA max)
Sleep current 2.5 µA (typical)
1Supply voltages of less than 3.0 V may reduce performance. Output power and receiver sensitivity may
degrade.

Technical specifications General specifications
XBee®-PRO 900HP/XSC RF Modules 17
General specifications
The following table describes the general specifications for the devices.
Specification Value
Operating frequency band1902 to 928 MHz (software selectable channels)
Dimensions 3.29 cm x 2.44 cm x 0.546 cm (1.297" x 0.962" x 0.215)
Dimensions do not include connector/antenna or pin lengths
Weight 5 to 8 grams, depending on the antenna option
Operating temperature -40 ºC to 85 º C (industrial)
Antenna options Integrated wire, U. FL RF connector, reverse-polarity SMA
connector
Digital I/O Fifteen (15) I/O lines,
Analog-to-digital converter
(ADC)
Four (4)10-bit analog inputs
Networking specifications
The following table provides the networking specifications for the device.
Specification Value
Supported network topologies Mesh, point-to-point, point-to-multipoint, peer-to-peer
Number of channels, user selectable
channels
64 channels available
Addressing options Personal Area Network identifier (PAN ID), Preamble ID, and
64-bit addresses
Encryption 128 bit Advanced Encryption Standard (AES)
Regulatory conformity summary
This table describes the agency approvals for the devices.
Country Approval
United States (FCC Part 15.247) MCQ-XB900HP
Innovation, Science and Economic Development Canada
(ISED)
1846A-XB900HP
1Supply voltages of less than 3.0 V may reduce performance. Output power and receiver sensitivity may
degrade.

Technical specifications Serial communication specifications
XBee®-PRO 900HP/XSC RF Modules 18
Country Approval
Australia RCM
Brazil ANATEL 3727-12-1209
Singapore License No. DA105737 (XB900HP only)
Mexico IFETEL (XB900HP listed in Mexico
IFETEL)
RoHS2 Compliant
Serial communication specifications
The XBee-PRO 900HP RF Module supports both Universal Asynchronous Receiver / Transmitter
(UART) and Serial Peripheral Interface (SPI)serial connections.
UART pin assignments
UART pins Device pin number
DOUT 2
DIN / CONFIG 3
CTS / DIO7 12
RTS / DIO6 16
SPI pin assignments
SPI pins Device pin number
SPI_SCLK / DIO18 18
SPI_SSEL / DIO17 17
SPI_MOSI / DIO16 11
SPI_MISO / DIO15 4
SPI_ATTN / DIO1 19
GPIO specifications
XBee devices have 15 General Purpose Input/Output (GPIO) ports available. The precise list depends
on the device configuration as some devices use the GPIO pins for purposes such as serial
communication. The following table shows the electrical specifications for the GPIO pins.

Technical specifications Secondary processor specifications
XBee®-PRO 900HP/XSC RF Modules 19
GPIO electrical specification Value
Voltage - supply 2.1 - 3.6 V (3.0 V or higher required for optimal performance)
Low Schmitt switching threshold 0.3 x VDD
High Schmitt switching threshold 0.7 x VDD
Input pull-up resistor value 40 kΩ
Input pull-down resistor value 40 kΩ
Output voltage for logic 0 0.05 x VDD
Output voltage for logic 1 0.95 x VDD
Output source current 2 mA
Output sink current 2 mA
Total output current (for GPIO pins) 48 mA
Note For information about Mexico IFETEL, see Mexico IFETEL. Only the XBee-PRO 900HP devices
listed are approved by IFETEL.
Secondary processor specifications
If the device has the programmable secondary processor, add the values from the following tables to
the specifications listed in the Power requirements specifications. For more information about
transmit, receive, and sleep currents, see Power requirements.
For example, if the secondary processor runs at 20 MHz and the primary processor is in receive mode,
then the new current value is:
Itotal = Ir2 + Irx = 14 mA + 9 mA = 23 mA
where Ir2 is the runtime current of the secondary processor and Irx is the receive current of the
primary processor.
Optional secondary processor specification
Add these numbers to power requirement
specifications
(add to RX, TX, and sleep currents
depending on mode of operation)
Runtime current for 32 k running at 20 MHz +14 mA
Runtime current for 32 k running at 1 MHz +1 mA
Sleep current +0.5µ A typical
For additional specifications see the NXP datasheet
and manual
MC9S08QE32
Voltage requirement for secondary processor to
operate at maximum clock frequency
2.4 to 3.6 VDC

Technical specifications Secondary processor specifications
XBee®-PRO 900HP/XSC RF Modules 20
Optional secondary processor specification
Add these numbers to power requirement
specifications
(add to RX, TX, and sleep currents
depending on mode of operation)
Minimum reset pulse for programmable variant 100 nS
Minimum reset pulse to radio 50 nS
Voltage reference (VREF) range 1.8 VDC to VCC
This manual suits for next models
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