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J-Link LITE Cortex-M

JTAG/SWD debug probe for Cortex-M cores. J-Link Lite CortexM is a specific OEM-version of SEGGER J-Link Lite which is designed to be used with Cortex-M devices.

  • Very small form factor
  • Fully software compatible with J-Link
  • Cortex-M0/M0+/M1/M3/M4/M7 cores supported
  • JTAG clock up to 2 MHzSWD, SWO supported'
  • Flash download into supported MCUs
  • Standard .05" 9-pin or 19-pin Samtec FTSH connector (depends on model)
  • 3.3V target interface voltage



About J-Link LITE for Cortex-M

J-Link Lite CortexM is a specific OEM version of SEGGER J-Link Lite which is designed to be used with Cortex-M devices. If you are selling evaluation-boards, J-Link Lite CortexM is an inexpensive debug probe solution for you. Your customer receives a widely acknowledged JTAG/SWD debug probe which allows him to start right away with his development.

J-Link LITE Models

Please note that J-Link LITE CortexM is available in two different versions:

J-Link Lite CortexM-19

  • 19-pin connector populated
  • Delivered with 20-pin cable

J-Link Lite CortexM-9

  • 9-pin connector populated
  • Delivered with 10-pin cable

When ordering J-Link LITE CortexM please always specify the model which shall be ordered.

J-Link LITE Cortex-M Specifications

Supported OSMicrosoft Windows 2000
Microsoft Windows XP
Microsoft Windows XP x64
Microsoft Windows 2003
Microsoft Windows 2003 x64
Microsoft Windows Vista
Microsoft Windows Vista x64
Microsoft Windows 7
Microsoft Windows 7 x64
Microsoft Windows 8
Microsoft Windows 8 x64
Microsoft Windows 10
Microsoft Windows 10 x64
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) 41mm x 34mm x 8mm
Weight (without cables)6g
USB interfaceUSB 2.0
Target interface 9-pin 0.05'' Samtec FTSH connector (J-Link Lite CortexM-9)
19-pin 0.05'' Samtec FTSH connector (J-Link Lite CortexM-19)
JTAG/SWD Interface, Electrical
Power supplyUSB powered Max. 50mA + Target Supply current.
Target interface voltage (VIF) 3.3V
Target supply voltage 4.5V ... 5V (if powered with 5V on USB)
Target supply currentMax. 300mA
LOW level input voltage (VIL) Max. 40% of VIF
HIGH level input voltage (VIH) Min. 60% of VIF
JTAG/SWD Interface, Timing
Data input rise time (Trdi)Max. 20ns
Data input fall time (Tfdi) Max. 20ns
Data output rise time (Trdo)Max. 10ns
Data output fall time (Tfdo)Max. 10ns
Clock rise time (Trc)Max. 10ns
Clock fall time (Tfc)Max. 10ns

If you are interested in J-Link LITE, please contact

J-Link LITE Cortex-M Licensing

J-Link Lite CortexM is only delivered and supported as part of a starter kit, which includes an evaluation board. It is not sold separately. It may only be used with the evaluation board it came with.

Support is given via the eval board manufacturer and via SEGGER Forum.

Package Content


J-Link Lite CortexM with standard 9-pin or 19-pin 0.05" Samtec FTSH connector (depends on model)


.05" 10-pin or 20-pin ribbon cable (depends on model)


Mini-USB cable