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Segger J-Link JTAG Isolator

Segger J-Link JTAG Isolator

MPN: 8.06.12
Segger Microcontroller Systems
J-Link - Adapter Board
Active

Overview

The Segger 8.06.12 is a JTAG Isolator board designed to provide electrical isolation between a J-Link debug probe and the target hardware. It features a 20-pin connector and protects the emulator and host PC from ground loops and overvoltage conditions often found in industrial power electronics. This adapter is essential when debugging systems where the target's ground potential is different from the computer ground.

Why Choose This Part

This board provides galvanically isolated JTAG signals, preventing noise and voltage spikes from reaching the debug probe. It uses the standard 20-pin 0.1 inch J-Link connector, making it a plug-and-play solution that requires no additional software configuration.

Applications

High-Voltage Power Electronics
Safe debugging of motor drives, inverters, and power supplies where high voltages pose a risk to the development PC.
Industrial System Maintenance
Connecting to field-deployed equipment where ground potential differences can cause current flow through the JTAG cable.
Laboratory Safety
Protecting expensive J-Link debug probes from accidental electrical damage during early-stage hardware prototyping.

Key Specifications

Accessory Type Adapter Board
Utilized IC / Part J-Link

Getting Started

Connect the J-Link JTAG Isolator directly between the Segger J-Link probe and the target's JTAG ribbon cable. Ensure the target side of the isolator is powered by the target hardware to maintain the isolation barrier. No specific firmware updates are required to use this hardware adapter.

Also Consider

Segger SWD Isolator Segger Microcontroller Systems - Required if the target system utilizes 2-wire Serial Wire Debug (SWD) instead of 4-wire JTAG.