J-Link BASE Compact

298€ HT

Emulateur Compact JTAG/SWD avec interface USB
Un concentré de J-Link BASE : 20 grammes, 47 x 40 x 14 mm
J-Link BASE Compact
CommanderAvis des clients

J-Link BASE Compact is a USB powered JTAG emulator supporting a large number of CPU cores.
Based on a 32-bit RISC CPU, it can communicate at high speed with the supported target CPUs. J-Link is used around the world in tens of thousand places for development and production (flash programming) purposes.
J-Link is supported by all major IDEs such as IAR EWARM, Keil MDK, Rowley CrossWorks, Atollic TrueSTUDIO, IAR EWRX, Renesas HEW, Renesas e2studio, and many others.
Including all models, more than 100,000 J-Links have been sold so far, making J-Link probably the most popular emulator for ARM cores and the de-facto standard.


  • Supported CPUs: Any ARM7/9/11, Cortex-A5/A8/A9, Cortex-M0/M1/M3/M4, Cortex-R4,RX100/RX200/RX610/RX621/RX62N/RX62T/RX630/RX631/RX63N
  • Download speed up to 1 MByte/second
  • Supports unlimited breakpoints in flash memory (1).
  • Setting breakpoints in external flash memory of Cortex-M systems is possible withJ-Link's Unlimited Flash Breakpoints technology only!
  • Supported by all major IDEs
  • Free software updates(2), 1 year of support
  • Supports concurrent access to CPU by multiple applications(3)
  • Crossplatform support (runs on Windows, Linux, Mac OS X)4
  • Intelligence in the emulator firmware More info...
  • Remote Server included. Allows using J-Link remotely via TCP/IP 
  • GDBServer included 
  • Production flash programming software (J-Flash) available
  • Software Developer Kit (SDK) available 
  • Supports multiple target interfaces: JTAG, SWD
  • Supports SWV/SWO (Serial Wire Viewer / Serial wire output)
  • Wide target voltage range: 1.2V - 3.3V, 5V tolerant
  • Supports JTAG chains with multiple devices
  • Embedded Trace Buffer (ETB) support
  • Various target adapters available, including optical isolation adapter. 
  • RDI / RDDI interface DLL available. 
  • Fully plug and play compatible
  • No power supply required, powered through USB
  • Support for adaptive clocking
  • All JTAG signals can be monitored, target voltage can be measured
  • Target power supply: J-Link can supply up to 300 mA to target with overload protection

1-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.
2-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.
3-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 visualisation 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.
4The MAC and Linux versions are fully usable, but limited to the following components:
J-Link Commander, command line GDBServer, shared library (DLL-equivalent)


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
Windows 7
Windows 7 x64
and newer
Mac OSX 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)47 x40 x 14 mm
Weight (without cables)20g
Available Interfaces
USB interfaceUSB 2.0
Target interfaceJTAG 20-pin (14-pin adapter available)
JTAG/SWD Interface, Electrical
Power supplyUSB powered
Max. 50mA + Target Supply current.
Target interface voltage (V IF )1.2V ... 5V
Target supply voltage4.5V ... 5V (if powered with 5V on USB)
Target supply currentMax. 300mA
Reset TypeOpen drain. Can be pulled low or
Reset low level output voltage (V OL )V OL <= 10% of V IF
For the whole target voltage range (1.2V <= V IF <= 5V)
LOW level input voltage (V IL )V IL <= 40% of V IF
HIGH level input voltage (V IH )V IH >= 60% of V IF
For 1.2V <= V IF <= 3.6V
LOW level output voltage (V OL ) with a load of 10 kOhmV OL <= 10% of V IF
HIGH level output voltage (V OH ) with a load of 10 kOhmV OH >= 90% of V IF
For 3.6 <= V IF <= 5V
LOW level output voltage (V OL ) with a load of 10 kOhmV OL <= 20% of V IF
HIGH level output voltage (V OH ) with a load of 10 kOhmV OH >= 80% of V IF
JTAG/SWD Interface, Timing
JTAG speedMax. 15MHz
SWO sampling frequencyMax. 7.5MHz
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)Tfc <= 3ns

* J-Link hardware revision 8 and up

1 x  J-LINK BASE Compact
1 x USB cable
1 x 20-pin, 0.1" target ribbon cable


For a detailed overview of hardware and software features of our J-Link and J-Trace models, please visit the Model comparison.

ModelDownload Speed
into RAM5
Into Flash1
GDB ServerUnlimited Flash
J-FlashRDI /
 J-Link PRO3.0 MByte/sec
 J-Link ULTRA+23.0 MByte/sec
 J-Link PLUS1.0 MByte/sec
 J-Link BASE1.0 MByte/sec
 J-Link EDU31.0 MByte/sec
Debug probes with built-in Trace memory
 J-Trace PRO Cortex-M3.0 MByte/sec
 J-Trace Cortex-M3.0 MByte/sec

 Included           Not included

1For use from within an IDE
2Best value: Includes all software enhancements and maximum performance
3Educational use
4Price does not include VAT or Sales Tax which may be applicable in some regions
5The download speeds listed here are the peak download speeds that can be achieved by the particular J-Link model. The actual download speed may be lower as it depends on various factors, such as, but not limited to: The selected debug interface & speed, the CPU core and its operating frequency, other devices in the JTAG chain in case JTAG is used as target interface.

Options :

Adaptateur 19-Pin Cortex-M

Adaptateur 9-Pin Cortex-M

Adaptateur ARM 14 pin

Adaptateur FINE RX

Adaptateur Needle

Adaptateur RX

Adaptateur TI 14-pin

Adaptateur TI-CTI-20

Isolateur JTAG

Isolateur SWD

298€ HT

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