
© 2016 MICRORISC s.r.o.  www.iqrf.org  User_guide_DDC-76D-01_160201     Page 1 
DDC-76D-01 
Development kit 
User’s guide 

  DDC-76D-01 
© 2016 MICRORISC s.r.o.  www.iqrf.org  User_guide_DDC-76D-01_160201     Page 2 
Block diagram 
Key features 
 Internal DCTR-76DA transceiver  
 +3 V LDO voltage regulator  
 1 pushbutton to control the transceiver  
 2 LEDs controlled from the transceiver, disconnectable  
 1 LED indicating the pushbutton pressing  
 All I/O pins protected by serial resistors  
 All I/Os accessible via connectors  
 Connectable to CK-USB-04A for TR upload, debug and 
operation or to DK-EVAL-04A for portable operation 
 Connectable up to two DDC development kits (DDC-IO-01 for 
comfortable managing TR I/O pins, DDC-SE-01 sensor kit or  
DDC-RE-01 relay kit) 
 Supplied from CK-USB-04A or DK-EVAL-04A 
Applications 
 Development with SMT transceivers TR-76Dx  
 Solderess development and prototyping 
Description 
DDC-76D-01 is a kit for solderless development of TR-76D 
transceiver applications. It contains TR-76DA transceiver and 
the environment needed for efficient operation, testing and 
debug. All TR pins are accessible via connectors. 
DDC-76D-01 is intended to be used with the CK-USB-04A or 
DK-EVAL-04A development kits and allows to connect up to two 
DDC development kits (DDC-IO-01 for comfortable managing 
TR I/O pins, DDC-SE-01 sensor kit or DDC-RE-01 relay kit). 
DDC-76D-01 is equipped with DCTR-76DA transceiver. For 
simplicity, the abbreviation TR instead of DCTR is often used 
further on throughout this document. 

  DDC-76D-01 
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Electrical specifications  Typical values unless otherwise stated 
Supply voltage (VIN)      3.1 V to 5.5 V 
Internal regulated supply voltage (VCC) +3.0 V ± 3 % ( VIN > 3.1 V) 
Input voltage on TR I/O pins    0 V to V
CC 
Supply current 
TR in Sleep mode, all LEDs off  2.9 µA (typical) 
Additional supply current 
TR active       See TR-76D datasheet. 
LEDs active      About 2 mA per LED. Rough value for brief guidance only. 
Operating temperature 1    -40 °C to +85 °C 
Size (L x W x H)      48 mm x 27 mm x 12 mm 
Note 1: RF range may change with lower temperature. Frost, condensation or humidity over 85% may disable transceiver 
functionality. The suitability should be tested in final application. 
Absolute maximum ratings 
Stresses above listed maximum values may cause permanent damage to the device and affect device reliability. Functional 
operation at these or any other conditions beyond those specified is not supported. 
Supply voltage (VIN)            6 V 
Voltage on TR I/O pins (configured as inputs) vs. GND   -0.3 V to ( VCC + 0.3 V) 
Storage temperature            -40 °C to +85 °C 
Ambient temperature under bias        -40 °C to +85 °C 
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. 
MICRORISC MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND TO STATED CONDITION, QUALITY, 
PERFORMANCE, MERCHANTABILITY OR FITNESS FOR PURPOSE and disclaims all liability arising from this information and its use. 
Use of MICRORISC devices in life support and/or safety applications is entirely at the buyer’s risk, and the buyer agrees to defend,  
indemnify and hold harmless MICRORISC from any and all damages, claims, suits, or expenses resulting from such use. No licenses 
are conveyed, implicitly or otherwise, under any MICRORISC intellectual property rights. 
Caution: Electrostatic sensitive device. Observe appropriate precautions for handling. 

  DDC-76D-01 
© 2016 MICRORISC s.r.o.  www.iqrf.org  User_guide_DDC-76D-01_160201     Page 4 
Schematic 

  DDC-76D-01 
© 2016 MICRORISC s.r.o.  www.iqrf.org  User_guide_DDC-76D-01_160201     Page 5 
Hardware 
Top view 
Power supply 
DDC-76D-01 should be supplied from CK-USB-04A or DK-EVAL-04A development kit connected via connector XC3. It is not 
intended to be supplied from other power sources. LDO voltage regulator MCP1700T-3002E/TT by Microchip converts the 
internal supply voltage to 3 V. 
If CK-USB-04A is used, IQRF IDE development environment controls connection to internal supply voltage (to perform TR 
upload). If DK-EVAL-04A is used (and switched on), the DDC-76D-01 is supplied continually. 
RF transceiver 
TR-76DA with on-board antenna. Refer to the TR-76D datasheet. 
Pushbutton 
User pushbutton is completely controlled from the application inside the transceiver. It is intended for task such as RFPGM 
(wireless upload) termination, bonding initialization, wake-up from TR sleep, MCU interrupt or any other user-specific 
functionality. 
Pressing the pushbutton is indicated by red LED (LED3). 
System LEDs 
LED1 (green) and LED2 (red) can be connected to the transceiver by the dipswitch. They are managed by IQRF OS (LEDG 
and LEDR) and DPA framework (if applied), and can also be handled by the user application. 
Connectors XC1 and XC2 
Connectors XC1 and XC2 are intended for connection to DDC kits, a user development board or some user equipment. 
DDC kits 
DDC-IO-01, DDC-SE-01 or DDC-RE-01 can be connected via connectors XC1 or XC2. All I/O pins (protected by serial 
resistors) are accessible at these two connectors. Note that the Q13 pin of the transceiver is input only. 
Some limitations resulting from factual circuitry of DDC kits should be taken into account. E.g., relay 2 can not be controlled 
if DDC-RE-01 is connected via connector XC2. 

  DDC-76D-01 
© 2016 MICRORISC s.r.o.  www.iqrf.org  User_guide_DDC-76D-01_160201     Page 6 
Application 
Upload 
TR programming (upload): 
 Wired upload: See the picture below and the CK-USB-04A User's guide.  
 Wireless upload: See the IQRF OS User's guide, Appendix RFPGM – RF programming
TM
. 
Operation 
Example of using with DK-EVAL-04A and two DDC kits: 
Application software 
See IQRF Quick start guide and other documentation relating to applications of IQRF transceivers. 

  DDC-76D-01 
© 2016 MICRORISC s.r.o.  www.iqrf.org  User_guide_DDC-76D-01_160201     Page 7 
Product information 
Pack list 
DDC-76D-01   Development kit for TR-76Dx transceivers, with DCTR-76DA soldered. 
Recommended options 
CK-USB-04A   IQRF programmer, debugger, development and test kit 
DK-EVAL-04    IQRF development kit for end wireless devices 
DDC-IO-01    IQRF development kits for managing I/Os, 2 pcs 
DDC-SE-01    IQRF sensor development kit 
DDC-RE-01    IQRF relay development kit 
Ordering code 
DDC-76D-01 
Document history 
 160201    First release. 

  DDC-76D-01 
© 2016 MICRORISC s.r.o.  www.iqrf.org  User_guide_DDC-76D-01_160201     Page 8 
Sales and Service 
Corporate office 
MICRORISC s.r.o., Prumyslova 1275, 506 01 Jicin, Czech Republic, EU 
Tel: +420 493 538 125, Fax: +420 493 538 126, www.microrisc.com. 
Partners and distribution 
Please visit www.iqrf.org/partners. 
Quality management 
ISO 9001 : 2009 certified 
Complies with ETSI directives EN 301489-1 V1.9.2:2011, EN 301489-3 V1.6.1:2013, 
EN 300220-1 V2.4.1:2012, EN 300220-2 V2.4.1:2012 and VO-R/10/05.2014-3. 
Complies with directives 2011/65/EU (RoHS) and 2012/19/EU (WEEE). 
Trademarks 
The IQRF name and logo and MICRORISC name are registered trademarks of MICRORISC s.r.o. 
PIC, SPI, Microchip and all other trademarks mentioned herein are property of their respective owners. 
Legal 
All information contained in this publication is intended through suggestion only and may be superseded by updates without 
prior notice. No representation or warranty is given and no liability is assumed by MICRORISC s.r.o. with respect to the 
accuracy or use of such information. 
Without written permission it is not allowed to copy or reproduce this information, even partially.  
No licenses are conveyed, implicitly or otherwise, under any intellectual property rights. 
The IQRF ® products utilize several patents (CZ, EU, US) 
On-line support: support@iqrf.org