Description
The ST-LINK/V2 Debugger (Version 4.0) is a USB in-circuit debugger and programmer designed for STM8 and STM32 microcontrollers. It provides a reliable and fast connection between your PC and target board for programming, debugging, and firmware updates.
This version comes with improved stability, wide-range voltage support (1.8V–5.5V), and firmware-level compatibility with the official ST-LINK/V2 interface — making it ideal for development boards like STM32F103, STM32F401, STM32F4xx, STM8S, STM8L, and more.
Perfect for:
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Embedded systems learning and experimentation
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STM32CubeIDE and Keil uVision debugging
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Flashing firmware and testing applications on STM32/STM8 MCUs
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Hands-on embedded projects and academic labs
Technical Specifications
| Parameter | Specification |
|---|---|
| MCU Interface | SWD (for STM32) / SWIM (for STM8) |
| Communication | USB 2.0 Full Speed |
| Voltage Range | 1.8V – 5.5V |
| Operating Current | < 100 mA |
| Dimensions | 66 mm × 26 mm × 13 mm |
| Cable Length | Approx. 20 cm |
| Supported IDEs | STM32CubeIDE, Keil uVision, IAR EWARM |
| OS Support | Windows / Linux / macOS |
| Firmware | ST-LINK/V2 Compatible Firmware v4.0 |





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