Digi XBee User manual

XBee®/XBee-PRO S2C ZigBee®
RF Module
User Guide

Revision history—90002002
Revision Date Description
U December2015 Updated XBee-PRO surface-mount agency approvals. Added missing
Extended Modem Status status code descriptions to the 0x98 frame.
Added ANATEL labels.
V July 2016 Updated the firmware release notes section. Updated several
hardware specifications with S2D hardware information. Updated
regulatory information. Revised the Programmable XBee SDK section.
Added the ED command. Updated the BD command. Added antennas
for the S2D hardware. Added a section on loading ZB firmware. Added
“S2C” to the product name on the title page and throughout the
document. Updated the number of supported address table entries.
W February 2017 Added South Korea certification data for the S2C TH and S2C SMT
devices.
X May 2017 Removed the XBee-PRO S2C SMT programmable modules from the
Brazilian certified list.
Y June 2017 Modified regulatory and certification information as required by RED
(Radio Equipment Directive).
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.
© 2017 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
Send comments
Documentation feedback: To provide feedback on this document, send your comments to
[e-mail].
XBee/XBee-PRO® S2C ZigBee® RF Module 2

Customer support
Digi Technical Support: Digi offers multiple technical support plans and service packages to help our
customers get the most out of their Digi product. For information on Technical Support plans and
pricing, contact us at +1 952.912.3444 or visit us at www.digi.com/support.
XBee/XBee-PRO® S2C ZigBee® RF Module 3

Contents
XBee/XBee-PRO® S2C ZigBee® RF Module
Note on product naming 14
Applicable firmware and hardware 14
Firmware release notes 14
Technical specifications
Performance specifications 16
Power requirements 16
General specifications 16
Networking and security specifications 17
Communication interface specifications 17
Regulatory conformity summary 18
Serial communication specifications 19
UART pin assignments 19
SPI pin assignments 19
GPIO specifications 19
Hardware specifications for the programmable variant 20
Hardware
Mechanical drawings 23
Pin signals for the surface-mount module 24
Pin signals for the through-hole module 26
EM357 pin mappings 27
Design notes 28
Power supply design 28
Board layout 29
Antenna performance 29
Recommended pin connections 30
Design notes for PCB antenna devices 30
Design notes for SMT RF pad devices 32
Module operation for the programmable variant 35
Programmable XBee SDK
Programmable connections 37
XBee/XBee-PRO® S2C ZigBee® RF Module 4

XBee/XBee-PRO® S2C ZigBee® RF Module 5
Operation
Serial interface 40
UART data flow 40
Serial data 40
SPI communications 41
SPI operation 41
Serial port selection 42
Serial buffers 42
Serial receive buffer 42
Serial transmit buffer 43
UART flow control 43
CTS flow control 43
RTS flow control 43
Break control 44
Serial interface protocols 44
Transparent operating mode 44
API operating mode 44
Compare Transparent and API operation 45
Modes of operation 47
Idle mode 48
Transmit mode 48
Receive mode 49
Command mode 49
Sleep mode 50
ZigBee networks
About the ZigBee specification 52
ZigBee stack layers 52
ZigBee networking concepts 53
Device types 53
PAN ID 55
Operating channels 56
Zigbee application layers: in depth 56
Application Support Sublayer (APS) 56
Application profiles 56
ZigBee coordinator operation 58
Form a network 58
Security policy 58
Channel selection 58
PAN ID selection 58
Persistent data 58
Coordinator startup 59
Permit joining 60
Reset the coordinator 60
Leave a network 61
Replace a coordinator (security disabled only) 61
Example: start a coordinator 62
Example: replace a coordinator (security disabled) 62
ZigBee router operation 62
Discover ZigBee networks 63
Join a network 63
Persistent data 63

XBee/XBee-PRO® S2C ZigBee® RF Module 6
ZigBee router joining 64
Permit joining 65
Router network connectivity 65
End device operation 68
Discover ZigBee networks 69
Join a network 69
End device capacity 69
Persistent data 70
Orphan scans 70
End device joining 70
Parent connectivity 71
Reset the end device 71
Leave a network 72
Example: join a network 72
ZigBee channel scanning 73
Manage multiple ZigBee networks 73
Filter PAN ID 73
Configure security keys 73
Prevent unwanted devices from joining 73
Application messaging framework 74
Transmission, addressing, and routing
Addressing 76
64-bit device addresses 76
16-bit device addresses 76
Application layer addressing 76
Data transmission 76
Broadcast transmissions 76
Unicast transmissions 77
Address resolution 78
Address table 78
Group table 79
Binding transmissions 79
Address resolution 79
Binding table 80
Multicast transmissions 80
Address resolution 80
Fragmentation 80
Data transmission examples 80
AT firmware 81
API firmware 81
API frame 82
RF packet routing 83
Link status transmission 83
AODV mesh routing 84
Many-to-One routing 87
High/Low RAM Concentrator mode 87
Source routing 87
Encrypted transmissions 92
Maximum RF payload size 92
Throughput 94
ZDO transmissions 95
ZDO 95
Sending a ZDO command 95

XBee/XBee-PRO® S2C ZigBee® RF Module 7
Receiving ZDO command and responses 95
Transmission timeouts 97
Unicast timeout 98
Extended timeout 98
Transmission examples 99
ZigBee security
Security modes 102
ZigBee security model 102
Network layer security 102
APS layer security 103
Trust center 105
Forming or joining a secure network 105
Implementing security on the XBee/XBee-PRO ZigBee RF Module 105
Enabling security 106
Setting the network security key 106
Set the APS trust center link key 106
Enable APS encryption 106
Use a trust center 107
Security examples 107
Network commissioning and diagnostics
Place devices 109
Test links in a network - loopback cluster 109
RSSI indicators 110
Device discovery 110
Network discovery 110
ZDO discovery 110
Joining Announce 111
Commissioning pushbutton and associate LED 111
Commissioning pushbutton 111
Associate LED 112
Binding 113
End_Device_Bind_req 113
Example of a End_Device_Bind_req 116
Group Table API 116
Add Group command 116
View group 118
Get Group Membership 119
Remove Group 121
Remove All Groups 123
Default responses 124
Common status codes 125
Manage End Devices
End Device operation 127
Parent operation 127
End Device poll timeouts 128
Packet buffer usage 128
Non-Parent device operation 129

XBee/XBee-PRO® S2C ZigBee® RF Module 8
End Device configuration 129
Pin sleep 130
Cyclic sleep 131
Recommended sleep current measurements 136
Achieve the lowest sleep current 136
Compensate for switching time 136
Internal pin pull-ups 137
Transmitting RF data 137
Receiving RF data 137
I/O sampling 138
Waking end devices with the Commissioning Pushbutton 138
Parent verification 138
Rejoining 138
Router/Coordinator configuration 139
RF packet buffering timeout 139
Child poll timeout 139
Transmission timeout 140
Putting it all together 141
Short sleep periods 141
Extended sleep periods 141
Sleep examples 141
Analog and digital I/O lines
Configurable I/O pins and configuration commands 144
XBee ZB through-hole RF module 144
I/O Configuration 145
I/O sampling 146
Queried sampling 147
Periodic I/O sampling 148
Change detection sampling 148
RSSI PWM 148
I/O examples 149
PWM1 149
API Operation
API frame format 151
API operation (AP parameter = 1) 151
API operation-with escaped characters (AP parameter = 2) 151
Data bytes that need to be escaped: 152
Length 152
Frame data 152
Calculate and verify checksums 153
API examples 154
API serial exchanges 155
AT commands 155
Transmit and Receive RF data 156
Remote AT commands 156
Source routing 157
Frame descriptions 158
AT Command Frame - 0x08 158
AT Command - Queue Parameter Value frame - 0x09 160
Transmit Request frame - 0x10 162

XBee/XBee-PRO® S2C ZigBee® RF Module 9
Explicit Addressing Command frame - 0x11 166
Remote AT Command Request frame - 0x17 169
Create Source Route - 0x21 171
AT Command Response frame - 0x88 174
Modem Status frame - 0x8A 176
Transmit Status frame - 0x8B 177
Receive Packet frame - 0x90 179
Explicit Rx Indicator frame - 0x91 181
Data Sample Rx Indicator frame - 0x92 183
XBee Sensor Read Indicator - 0x94 186
Node Identification Indicator frame - 0x95 189
Remote Command Response frame - 0x97 192
Extended Modem Status frame - 0x98 194
Over-the-Air Firmware Update Status - 0xA0 201
Route Record Indicator - 0xA1 203
Many-to-One Route Request Indicator - 0xA3 205
Send ZDO commands with the API 206
Example 208
Send ZigBee Cluster Library (ZCL) commands with the API 209
Example 212
Send Public Profile Commands with the API 214
Frame specific data 214
Example 217
AT commands
Addressing commands 221
DH (Destination Address High) 221
DL (Destination Address Low) 221
MY (16-bit Network Address) 221
MP (16-bit Parent Network Address) 221
NC (Number of Remaining Children) 222
SH (Serial Number High) 222
SL (Serial Number Low) 222
NI (Node Identifier) 222
SE (Source Endpoint) 223
DE (Destination Endpoint) 223
CI (Cluster ID) 223
TO (Transmit Options) 223
NP (Maximum Packet Payload Bytes) 224
DD (Device Type Identifier) 224
CR (Conflict Report) 224
Network commands 225
CH (Operating Channel) 225
CE (Coordinator Enable) 225
ID (Extended PAN ID) 225
OP (Operating Extended PAN ID) 226
NH (Maximum Unicast Hops) 226
BH (Broadcast Hops) 226
OI (Operating 16-bit PAN ID) 226
NT (Node Discover Timeout) 226
NO(Network Discovery Options) 227
SC (Scan Channels) 227
SD (Scan Duration) 228
ZS (ZigBee Stack Profile) 229

XBee/XBee-PRO® S2C ZigBee® RF Module 10
NJ (Node Join Time) 230
JV (Channel Verification) 230
NW(Network Watchdog Timeout) 230
JN (Join Notification) 230
AR (Aggregate Routing Notification) 231
Security commands 231
EE (Encryption Enable) 231
EO (Encryption Options) 231
NK (Network Encryption Key) 232
KY (Link Key) 232
RF interfacing commands 232
PL (TX Power Level) 232
PM (Power Mode) 233
DB (Received Signal Strength) 233
PP (Peak Power) 234
Serial interfacing commands 234
API Enable 234
AO (API Options) 234
BD (Interface Data Rate) 235
NB (Parity) 236
SB (Stop Bits) 236
RO (Packetization Timeout) 237
D6 (DIO6/RTS) 237
I/O settings commands 238
IR (I/O Sample Rate) 238
IC (Digital Change Detection) 238
P0 (RSSI/PWM0 Configuration) 239
P1 (DIO11/PWM1 Configuration) 239
P2 (DIO12 Configuration) 240
P3 (DIO13/DOUT Configuration) 240
P4 (DIO14/DIN) 241
P5 (DIO15/SPI_MISO) 241
P6 (SPI_MOSI Configuration) 241
P7 (DIO17/SPI_SSEL ) 242
P8 (DIO18/SPI_SCLK) 242
P9 (DIO19/SPI_ATTN/PTI_DATA) 242
D0 (AD0/DIO0 Configuration) 243
D1 (AD1/DIO1/PTI_En Configuration) 243
D2 (AD2/DIO2 Configuration) 244
D3 (AD3/DIO3 Configuration) 244
D4 (DIO4 Configuration) 245
D5 (DIO5/Associate Configuration) 245
D8 (DIO8/DTR/SLP_RQ) 246
D9 (DIO9/ON_SLEEP) 246
LT (Associate LED Blink Time) 246
PR (Pull-up/Down Resistor Enable) 247
PD (Pull Up/Down Direction) 248
RP(RSSI PWM Timer) 248
DC (Device Controls) 248
DO (Device Options) 249
%V (Voltage Supply Monitoring) 249
V+ (Voltage Supply Monitoring) 249
TP (Temperature) 250
Diagnostic commands 250
VR (Firmware Version) 250

XBee/XBee-PRO® S2C ZigBee® RF Module 11
VL (Version Long) 250
HV (Hardware Version) 250
AI (Association Indication) 251
Command mode options 251
CT (Command Mode Timeout) 252
CN (Exit Command mode) 252
GT (Guard Times) 252
CC (Command Character) 252
Sleep commands 252
SM (Sleep Mode) 253
SN (Number of Cycles Between ON_SLEEP ) 253
SP (Sleep Period) 253
ST (Time before Sleep) 254
SO (Sleep Options) 254
WH (Wake Host Delay) 254
PO (Polling Rate) 254
Execution commands 255
AC (Apply Changes) 255
AS (Active Scan) 255
WR (Write) 255
RE (Restore Defaults) 256
FR (Software Reset) 256
NR (Network Reset) 256
SI (Sleep Immediately) 257
CB (Commissioning Pushbutton) 257
&X (Clear Binding and Group Tables) 257
ND (Node Discovery) 257
DN (Destination Node) 258
IS (Force Sample) 258
Module support
XCTU configuration tool 261
Customizing XBee ZigBee firmware 261
XBee Bootloader 261
Programming XBee modules 261
Serial firmware updates 261
Invoke the XBee Bootloader 262
Send a firmware image 262
Writing custom firmware 262
Regulatory compliance 262
Enable GPIO 1 and 2 263
Detect XBee versus XBee-PRO 263
Special instructions for using the JTAG interface 264
Regulatory information
United States (FCC) 266
OEM labeling requirements 266
FCC notices 267
FCC-approved antennas (2.4 GHz) 268
Associated antenna descriptions 284
RF exposure 284
Europe (CE) 284

XBee/XBee-PRO® S2C ZigBee® RF Module 12
Maximum power and frequency specifications 284
OEM labeling requirements 285
Declarations of conformity 285
Antennas 285
IC (Industry Canada) 286
Labeling requirements 286
For XBee ZB surface-mount: 286
For XBee-PRO ZB surface-mount: 286
For XBee ZB through-hole: 286
For XBee-PRO ZB through-hole: 286
Transmitters for detachable antennas 286
Detachable antenna 287
For XBee S2D SMT: 287
RF Exposure 287
Australia (RCM) 288
ANATEL (Brazil) 288
South Korea 291
Migrating from XBee through-hole to XBee surface-mount devices
Pin mapping 296
Mounting 297
Manufacturing information
Recommended solder reflow cycle 300
Recommended footprint 300
Flux and cleaning 302
Reworking 302
Load ZigBee firmware on 802.15.4 devices
Background 304
Load ZB firmware 305
Definitions
ZigBee node types 306
ZigBee protocol 307

XBee/XBee-PRO® S2C ZigBee® RF Module
This manual describes the operation of the XBee/XBee-PRO ZigBee RF Module, which consists of
ZigBee firmware loaded onto XBee S2C and PRO S2C hardware.
The XBee/XBee-PRO ZigBee RF Modules provide wireless connectivity to end-point devices in ZigBee
mesh networks. Using the ZigBee PRO Feature Set, these modules are inter-operable with other
ZigBee devices, including devices from other vendors. With the XBee, users can have their ZigBee
network up-and-running in a matter of minutes without configuration or additional development.
The XBee/XBee-PRO ZigBee RF Modules are compatible with other devices that use XBee ZigBee
technology. These include ConnectPortX gateways, XBee and XBee-PRO Adapters, Wall Routers, XBee
Sensors, and other products with the ZB name.
Note on product naming 14
Applicable firmware and hardware 14
Firmware release notes 14
XBee/XBee-PRO® S2C ZigBee® RF Module 13

XBee/XBee-PRO® S2C ZigBee® RF Module Note on product naming
XBee/XBee-PRO® S2C ZigBee® RF Module 14
Note on product naming
Although we refer to the device as an S2C, information for the S2D is also part of the guide. The
information for the S2D is part of the S2C guide because the hardware is very similar.
Applicable firmware and hardware
Hardware: S2C
Firmware: 401x, 402x, 403x, 404x, 405x
Hardware: S2D
Firmware: 705x
Firmware release notes
You can view the current release notes in the Firmware Explorer section of XCTU. For instructions on
downloading and using XCTU, go to: http://www.digi.com/products/xbee-rf-solutions/xctu-
software/xctu.

Technical specifications
Performance specifications 16
Power requirements 16
General specifications 16
Networking and security specifications 17
Communication interface specifications 17
Regulatory conformity summary 18
Serial communication specifications 19
GPIO specifications 19
Hardware specifications for the programmable variant 20
XBee/XBee-PRO® S2C ZigBee® RF Module 15

Technical specifications Performance specifications
XBee/XBee-PRO® S2C ZigBee® RF Module 16
Performance specifications
The following table describes the performance specifications for the devices.
Specification XBee ZigBee S2C
XBee-PRO
ZigBee S2C XBee ZigBee S2D
Indoor/urban
range
Up to 60 m (200 ft) Up to 90 m
(300 ft)
Up to 60 m (200 ft)
Outdoor RF line-
of-sight range
Up to 1200 m (4000 ft) Up to 3200
m (2 mi)
Up to 1200 m (4000 ft)
Transmit power
output (maximum)
6.3 mW (+8 dBm), boost mode
3.1 mW (+5 dBm), normal mode
channel 26 max power is +3 dBm
63 mW (+18
dBm)
6.3 mW (+8 dBm) channel
26 max power is +1 dBm
RF data rate 250,000 b/s
Receiver
sensitivity
-102 dBm, boost mode
-100 dBm, normal mode
-101 dBm -102 dBm, boost mode
-100 dBm, normal mode
Power requirements
The following table describes the power requirements for the XBee/XBee-PRO ZigBee RF Module.
Specification XBee ZigBee S2C
XBee-PRO ZigBee
S2C
XBee
ZigBee S2D
Adjustable power Yes
Supply voltage 2.1 - 3.6 V 2.2 - 3.6 V for programmable
version
2.7 - 3.6 V 2.1 - 3.6 V
Operating current
(transmit)
45 mA (+8 dBm, boost mode) 33 mA (+5
dBm, normal mode)
120 mA @ +3.3 V,
+18 dBm
45 mA
Operating current
(receive)
31 mA (boost mode)
28 mA (normal mode)
31 mA 31 mA
Power-down
current
< 1 µA @ 25°C < 3 uA @ 25°
C
General specifications
The following table describes the general specifications for the devices.
Specification XBee ZigBee S2C XBee-PRO ZigBee S2C XBee ZigBee S2D
Operating frequency
band
ISM 2.4 - 2.5 GHz
Form factor through-hole, surface-mount surface-mount

Technical specifications Networking and security specifications
XBee/XBee-PRO® S2C ZigBee® RF Module 17
Specification XBee ZigBee S2C XBee-PRO ZigBee S2C XBee ZigBee S2D
Dimensions through-hole: 2.438 x
2.761 cm (0.960 x 1.087
in)
surface-mount: 2.199 x
3.4 x 0.305 cm (0.866 x
1.33 x 0.120 in)
through-hole: 2.438 x
3.294 cm (0.960 x 1.297
in)
surface-mount: 2.199 x
3.4 x 0.305 cm (0.866 x
1.33 x 0.120 in)
surface-mount: 2.199 x
3.4 x 0.305 cm (0.866 x
1.33 x 0.120 in)
Operatingtemperature -40 to 85 °C (industrial)
Antenna options through-hole: PCB antenna, U.FL connector, RPSMA connector, or
integrated wire
surface-mount: RF pad, PCB antenna, or U.FL connector
Networking and security specifications
The following table describes the networking and security specifications for the devices.
Specification XBee ZigBee S2C XBee-PRO ZigBee S2C XBee ZigBee S2D
Supported network
topologies
Point-to-point, point-to-multipoint, peer-to-peer, and DigiMesh
Number of channels 16 Direct sequence
channels
15 Direct sequence
channels
16 Direct sequence
channels
Interface immunity Direct Sequence Spread Spectrum (DSSS)
Channels 11 to 26
Addressing options PAN ID and addresses, cluster IDs and endpoints (optional)
Communication interface specifications
The following table provides the device's communication interface specifications.
Interface options
UART 250 Kb/s maximum
SPI 5 Mb/s maximum (burst)

Technical specifications Regulatory conformity summary XBee/XBee-PRO® S2C ZigBee® RF Module 18
Regulatory conformity summary
This table describes the agency approvals for the devices.
Note Legacy XBee-PRO SMT (model: PRO S2C; hardware version 21xx) has different FCC and IC IDs. For more information, see Regulatory information.
Approval
XBee (surface-
mount) XBee-PRO (surface-mount)
XBee (through-
hole)
XBee-PRO
(through-hole)
XBee S2D (surface-
mount)
United States (FCC Part
15.247)
FCC ID: MCQ-
XBS2C
FCC ID: MCQ-XBPS2C
(revision K and earlier)
FCC ID: MCQ-PS2CSM
(revision L and later)
FCC ID: MCQ-S2CTH FCC ID: MCQ-
PS2CTH
FCC ID: MCQ-
S2DSM
Industry Canada (IC) IC: 1846A-XBS2C IC: 1846A-XBPS2C
(revision K and earlier)
IC: 1846A-PS2CSM (revision L
and later)
IC: 1846A-S2CTH IC: 1846A-PS2CTH IC: 1846A-S2DSM
FCC/IC Test Transmit Power
Output range
-26 to +8 dBm -0.7 to +19.4 dBm -26 to +8 dBm +1 to +19 dBm -10 to +8 dBm
Europe (CE) Yes Yes Yes
Australia RCM RCM RCM RCM
Japan R201WW10215369 R210-105563
Brazil (Res. 506) ANATEL: 0616-15-
1209
ANATEL: 1533-15- 1209 ANATEL: 4556-15-
1209
ANATEL: 4077-15-
1209
South Korea MSIP-CRM-DIG-
XBee-S2C
MSIP-CRM-DIG-
XBee-S2C-TH
RoHS Compliant

Technical specifications Serial communication specifications
XBee/XBee-PRO® S2C ZigBee® RF Module 19
Serial communication specifications
The XBee/XBee-PRO ZigBee RF Module supports both Universal Asynchronous Receiver / Transmitter
(UART) and Serial Peripheral Interface (SPI)serial connections.
UART pin assignments
Specifications Device pin number
UART pins XBee (surface-mount) XBee (through-hole)
DOUT 3 2
DIN / CONFIG 4 3
CTS / DIO7 25 12
RTS/ DIO6 29 16
For more information on UART operation, see Operation.
SPI pin assignments
The SC2 (Serial Communication Port 2) of the Ember 357 is connected to the SPI port.
Specifications Device pin number
SPI pins XBee (surface-mount) XBee (through-hole)
SPI_SCLK 14 18
SPI_SSEL 15 17
SPI_MOSI 16 11
SPI_MISO 17 4
For more information on SPI operation, see SPI operation.
GPIO specifications
XBee/XBee-PRO ZigBee RF Modules have 15 General Purpose Input / Output (GPIO) ports available.
The exact list depends on the device configuration as some GPIO pads are used for purposes such as
serial communication.
See Enable GPIO 1 and 2 for more information on configuring and using GPIO ports.
GPIO electrical specification Value
Voltage - supply 2.1 - 3.6 V

Technical specifications Hardware specifications for the programmable variant
XBee/XBee-PRO® S2C ZigBee® RF Module 20
GPIO electrical specification Value
Low Schmitt switching threshold 0.42 - 0.5 x VCC
High Schmitt switching threshold 0.62 - 0.8 x VCC
Input current for logic 0 -0.5 µA
Input current for logic 1 0.5 µA
Input pull-up resistor value 29 kΩ
Input pull-down resistor value 29 kΩ
Output voltage for logic 0 0.18 x VCC
(maximum)
Output voltage for logic 1 0.82 x VCC
(minimum)
Output source/sink current for pad numbers 3, 4, 5, 10, 12, 14, 15, 16, 17, 25, 26,
28, 29, 30, and 32 on the SMT modules
4 mA
Output source/sink current for pin numbers 2, 3, 4, 9, 12, 13, 15, 16, 17, and 19 on
the TH modules
4 mA
Output source/sink current for pad numbers 7, 8, 24, 31, and 33 on the SMT
modules
8 mA
Output source/sink current for pin numbers 6, 7, 11, 18, and 20 on the TH modules 8 mA
Total output current (for GPIO pads) 40 mA
Hardware specifications for the programmable variant
If the module has the programmable secondary processor, add the following table values to the
specifications listed. For example, if the secondary processor is running at 20 MHz and the primary
processor is in receive mode then the new current value will be Itotal = Ir2 + Irx = 14 mA + 9 mA = 23 mA,
where Ir2 is the runtime current of the secondary processor and is the receive current of the
primary.
Optional secondary processor
specification
Add to RX, TX, and sleep currents specifications
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 +0.5 µA typical
For additional specifications see NXP
Datasheet and Manual
MC9S08QE32