Skip navigation

J-Link PLUS / J-Link PLUS Compact

  • Comes with integrated licenses for: Unlimited breakpoints in flash memory (Unlimited Flash Breakpoints), RDI / RDDI and J-Flash
  • Superset of J-Link BASE [More..]
  • Supports a broad range of microcontrollers [More..]
  • Supports direct download into RAM and flash memory
  • Download speed up to 1 MByte/s
  • Supports unlimited breakpoints in flash memory [More..]
  • Multiple CPUs supported—8051, PIC32, RX, ARM7/9/11, Cortex-M/R/A, RISC-V [More..]
  • Free software updates
  • Built-in VCOM functionality [More..]

JTAG/SWD debug probe with USB interface. 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.

JTAG/SWD debug probe with USB interface

J-Link PLUS is a USB powered JTAG debug probe 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 PLUS is available in two form factors with identical function: J-Link PLUS and J-Link PLUS Compact.

The J-Link debug probes are supported by all major IDEs including Eclipse, GDB-based IDEs and SEGGER Embedded Studio. For a complete list, please refer to Supported IDEs. Including all models, more than 500,000 J-Links have been shipped so far, making J-Link probably the most popular debug probe for ARM cores and the de-facto standard.

Specifications

Specification Value
Supported OSMicrosoft Windows 2000, XP, 2003, Vista, 7 and newer (32 bit and 64 bit versions)
Linux
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
Mechanical
Size standard housing (without cables) 100mm x 53mm x 27mm
Weight standard housing (without cables) 70g
Size compact device (without cables) 47mm x 40mm x 14mm
Weight compact device (without cables) 20g
Available Interfaces
USB interface USB 2.0 (Hi-Speed)
Target interface JTAG/SWD 20-pin (adapters available)
JTAG/SWD Interface, Electrical
Power supply USB 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 5V (derived from USB voltage)
Target supply current Max. 300mA
Reset type Open drain. Can be pulled low or tristated
Reset low level output voltage (VOL) VOL <= 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 kOhm VOL <= 20% of VIF
HIGH level output voltage (VOH) with a load of 10 kOhm VOH >= 80% of VIF
For 3.6 <= VIF <= 5V
LOW level output voltage (VOL) with a load of 10 kOhm VOL <= 20% of VIF
HIGH level output voltage (VOH) with a load of 10 kOhm VOH >= 80% of VIF
JTAG/SWD Interface, Timing
Target interface speed Max. 15 MHz
SWO sampling frequency Max. 30 MHz
Data input rise time (Trdi) 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

Licensing

J-Link PLUS comes with licenses for all J-Link related SEGGER software products:

J-Link Unlimited Flash Breakpoints, J-Link RDI / RDDI, J-Flash providing the optimum debugging experience for professional developers.

Package Content

J-Link PLUS

.1" 20-pin ribbon cable

USB cable

Package Content J-Link PLUS Compact

J-Link PLUS Compact

.1" 20-pin ribbon cable

USB cable