ST-LINK/V2 (left) and ST-LINK/V2-ISOL
(right). Pictures are not contractual.
Features
• 5 V power supplied by a USB connector
• USB 2.0 full-speed compatible interface
• USB Type-A to Mini-B cable provided
• SWIM specific features:
– 1.65 V to 5.5 V application voltage support on the SWIM interface
– SWIM low-speed and high-speed modes support
– SWIM programming speed rates: 9.7 kbyte/s in low-speed, 12.8 kbyte/s in
high-speed
– SWIM cable for connection to an application with an ERNI standard
connector
◦ Vertical connector reference: 284697 or 214017
◦ Horizontal connector reference: 214012
– SWIM cable for connection to an application with pin headers or 2.54 mm
pitch connector
• JTAG/serial wire debug (SWD) specific features:
– 1.65 V to 3.6 V application voltage support on the JTAG/SWD interface and
5 V tolerant inputs
– JTAG cable for connection to a standard JTAG 20-pin 2.54 mm pitch
connector
– JTAG support
– SWD and serial wire viewer (SWV) communication support
• Direct firmware update support (DFU)
• Status LED blinking during the communication with the PC
• Operating temperature from 0 °C to 50 °C
• 1000 Vrms high isolation voltage (ST-LINK/V2-ISOL only)
Description
The ST-LINK/V2 is an in-circuit debugger and programmer for the STM8 and STM32
microcontrollers. The single-wire interface module (SWIM) and JTAG/serial wire
debugging (SWD) interfaces are used to communicate with any STM8 or STM32
microcontroller located on an application board. In addition to providing the same
functionalities as the ST-LINK/V2, the ST-LINK/V2-ISOL features digital isolation
between the PC and the target application board. It also withstands voltages of up to
1000 Vrms.
STM8 applications use the USB full-speed interface to communicate with the ST
Visual Develop (STVD-STM8) or ST Visual Programmer (STVP-STM8) software, or
with integrated development environments from third-parties.
STM32 applications use the USB full-speed interface to communicate with the
STM32CubeIDE software tool or with integrated development environments from
third-parties.
Product status link
ST-LINK/V2
ST-LINK/V2 in-circuit debugger/programmer
for STM8 and STM32 microcontrollers
ST-LINK/V2
Data brief
DB1275 - Rev 6 - November 2020
For further information contact your local STMicroelectronics sales office.
www.st.com
1Ordering information
To order the ST-LINK/V2 in-circuit debugger and programmer, refer to Table 1. For a detailed description, refer to
its user manual on the product web page.
Table 1. List of available products
Order code User manual ST-LINK description
ST-LINK/V2
UM1075
In-circuit debugger/programmer
ST-LINK/V2-ISOL In-circuit debugger/programmer with 1000 Vrms digital isolation
ST-LINK/V2
Ordering information
DB1275 - Rev 6 page 2/6
2Statement of volatility
Table 2 identifies all the memory locations in the ST-LINK/V2 products. All customer data is only stored in the
RAM of the STM32F103C8T6 microcontroller resident in the ST-LINK/V2. This location is transient and volatile.
All the contents in this location is deleted when the ST-LINK/V2 power is turned off. The STM32F103C8T6
also uses Flash memory, which is non-volatile. The Flash memory includes an STMicroelectronics proprietary
firmware, which must not be modified by the user. This Flash memory does not store any user data under the
normal mode of operation of the ST-LINK/V2 product.
Table 2. Memory locations in ST-LINK/V2
Order
code MCU device Memory
size Type Volatility User
data Purpose Sanitization
procedure
ST-
LINK/V2
STM32F103C8T6
64 Kbytes Flash
memory
Non-
volatile No Stores the official ST-Link
bootloader and firmware. N/A
20 Kbytes RAM Volatile Yes
Stores the ST-Link bootloader
and firmware variables,
including a buffer containing a
section of the user binary to
be programmed into the target
STM8 or STM32 device.
Complete
power-down
ST-
LINK/V2-
ISOL
64 Kbytes Flash
memory
Non-
volatile No Stores the official ST-Link
bootloader and firmware. N/A
20 Kbytes RAM Volatile Yes
Stores the ST-Link bootloader
and firmware variables,
including a buffer containing a
section of the user binary to
be programmed into the target
STM8 or STM32 device.
Complete
power-down
ST-LINK/V2
Statement of volatility
DB1275 - Rev 6 page 3/6
arm
3Development environment
The ST-LINK/V2 implementations embed an STM32 32-bit microcontroller based on the Arm® Cortex®‑M
processor.
Note: Arm is a registered trademark of Arm Limited (or its subsidiaries) in the US and/or elsewhere.
3.1 System requirements
• Windows® OS (7, 8 and 10)(1), Linux® 64-bit, or macOS®
• USB Type-A to Mini-B cable (provided)
1. The ST-LINK/V2 ecosystem is not validated on Windows 7® and Windows 8® because these systems are no longer officially
maintained by Microsoft®.
Note: macOS® is a trademark of Apple Inc. registered in the U.S. and other countries.
All other trademarks are the property of their respective owners.
3.2 Development toolchains
STM8 microcontrollers
• IAR Systems - IAR-EWSTM8(1)
• Cosmic - Free IDEA(1)
• Raisonance - RIDE-STM8(1)
• iSYSTEM - winIDEA-STM8(1)
• STMicroelectronics - STVD-STM8(1) (using Cosmic toolchain)
• STMicroelectronics - STVP-STM8(1)
STM32 microcontrollers
•IAR Systems - EWARM(1)
• Keil® - MDK-ARM(1)
• STMicroelectronics - STM32CubeIDE
• STMicroelectronics - STM32CubeProgrammer (STM32CubeProg)
• STMicroelectronics - STM32CubeMonitor
1. On Windows® only.
3.3 Related software
• ST-LINK firmware upgrade (STSW-LINK007)
• ST-LINK USB driver (STSW-LINK009)
ST-LINK/V2
Development environment
DB1275 - Rev 6 page 4/6
Revision history
Table 3. Document revision history
Date Version Changes
21-Apr-2011 1 Initial release.
7-May-2012 2 Added SWD to JTAG connection features.
14-Sep-2012 3 Added ST-LINK/V2-ISOL.
24-Mar-2016 4 Updated Vrms value in Features and Description.
27-Apr-2020 5
Updated document title, and IDEs for STM8 and STM32 microcontrollers in
Description.
Added Ordering information and Development environment.
25-Nov-2020 6 Added Statement of volatility. Updated System requirements and
Development toolchains.
ST-LINK/V2
DB1275 - Rev 6 page 5/6
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© 2020 STMicroelectronics – All rights reserved
ST-LINK/V2
DB1275 - Rev 6 page 6/6
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