Skip navigation

J-Link EDU

Low-cost J-Link for educational purpose J-LINK EDU is identical to J-Link BASE and offers the same functionality. It has been designed to allow students and educational facilities as well as hobbyists access to top of the line debug probe technology.

  • Supports a broad range of microcontrollers
  • Multiple CPUs supported—8051, PIC32, RX, ARM7/9/11, Cortex-M/R/A, RISC-V
  • Download speed up to 1 MByte/s
  • Supports unlimited breakpoints in flash memory, additional license required.
  • Built-in VCOM functionality 



Full J-Link Support

Unlimited Breakpoints

The unlimited breakpoints in flash memory feature can be used free of charge for evaluation. The evaluation period is not time limited. For commercial use a separate license is required.

Free Software Updates

As a legitimate owner of a SEGGER J-Link, you can always download the latest software free of charge. Though not planned and not likely, we reserve the right to change this policy. Note that older models may not be supported by newer versions of the software. Typically, we support older models with new software at least 3 years after end of life.

Supports concurrent access to CPU by multiple applications

J-Link allows multiple applications to access a CPU at the same time. This has numerous applications. J-Link commander can be used in parallel to a debugger, a tool to communicate via DCC can be used in parallel to a debugger or a visualization tool such as Micrium's u/C-Probe or SEGGER's kernel viewer embOSView. This feature is currently not available for Cortex A and R cores.

Crossplatform support

runs on Windows, Linux, macOS. The MAC and Linux versions are fully usable, but limited to the following components:

J-Link Commander, command line GDBServer, shared library (DLL-equivalent)


Licensing and Support

  • J-Link EDU may only be used for non-commercial purposes.
  • J-Link EDU does not come with support. In case of questions / problems, you can visit our community forum. However, there is no claim for guaranteed support in the forum. View forum rules for more information.


Supported OSMicrosoft Windows 2000, XP, 2003, Vista, 7 and newer 
macOS 10.5 and higher
Electromagnetic compatibility (EMC)EN 55022, EN 55024
Operating temperature+5°C ... +60°C
Storage temperature-20°C ... +65 °C
Relative humidity (non-condensing)Max. 90% rH
Size (without cables)100mm x 53mm x 27mm
Weight (without cables)70g
Available Interfaces
USB interfaceUSB 2.0 (Hi-Speed)
Target interfaceJTAG/SWD 20-pin
JTAG/SWD Interface, Electrical
Power supplyUSB powered
Max. 50mA + Target Supply current.
Target interface voltage (VIF)1.2V ... 5V
Current drawn from target voltage sense pin (VTRef)< 25µA
Target supply voltage 4.5V ... 5V (if powered with 5V on USB)
Target supply currentMax. 300mA
Reset typeOpen drain. Can be pulled low or tristated
Reset low level output voltageVOL <= 10% of VIF
For the whole target voltage range (1.2V <= VIF <= 5V)
LOW level input voltage (VIL)VIL <= 40% of VIF
HIGH level input voltage (VIH)VIH >= 60% of VIF
For 1.2V >= VIF <= 3.6V
LOW level output voltage (VOL) with a load of 10 kOhmVOL <= 10% of VIF
HIGH level output voltage (VOH) with a load of 10 kOhmVOH >= 90% of VIF
For 3.6 <= VIF <= 5V
LOW level output voltage (VOL) with a load of 10 kOhmVOL <= 20% of VIF
HIGH level output voltage (VOH) with a load of 10 kOhmVOH >= 80% of VIF
JTAG/SWD Interface, Timing
JTAG speedMax. 15 MHz
SWO sampling frequencyMax. 30 MHz
Data input rise time (Trdi)Trdi <= 20ns
Data input fall time (Tfdi)Tfdi <= 20ns
Data output rise time (Trdo)Trdo <= 10ns
Data output fall time (Tfdo)Tfdo <= 10ns
Clock rise time (Trc)Trc <= 3ns
Clock fall time (Tfc)Trc <= 3ns

Terms of use

You may use the J-Link EDU for non profit educational purposes only! Non-profit educational purposes means that you may not use the J-Link EDU and its J-Link software:

  • directly or indirectly in or for a profit organization or business purposes or other undertaking intended for profit.
  • direct or indirect within any other commercial environment (e.g. office).
  • to develop, debug, program or manufacture a commercial product (or parts thereof).
  • to use it to either earn money or reasonably anticipate the receipt of monetary gain from it.

Any other use of the J-Link EDU is prohibited and illegal! If there is any doubt if a certain use may be considered within the foregoing scope or whether your use of the J-Link EDU applies to an educational situation, it is strongly recommended to get in touch and consult SEGGER prior use.

For clarification purposes: A student using the J-Link EDU direct or indirect in a business or profit organization (e.g. company) is considered a violation of the scope of this agreement.

Note: Before connecting with the J-Link EDU you need to accept the Terms of use as shown on the screen below:


How to purchase J-Link EDU

J-Link EDU is available for 49.98 € including VAT (list price)

In case you would like to purchase the J-Link EDU from Europe, please contact the appropriate distributor in your country or the online shop at AK-Modul-Bus. For purchase from countries outside Europe, J-Link EDU is sold via distribution or at the Digi-Key website. U.S. customers, please check out our website

If you are not sure how to purchase a SEGGER J-Link EDU, please contact

Package Content


J-Link EDU


.1" 20-pin ribbon cable


USB cable