Description
The ST-LINK/V2 is an in-circuit debugger and programmer for the STM8 and STM32 microcontroller families. 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. 
STM8 applications use the USB full speed interface to communicate with STMicroelectronic’s ST Visual Develop (STVD) or ST Visual Program (STVP) software.
STM32 applications use the USB full speed interface to communicate with Atollic, IAR, Keil or TASKING integrated development environments.
 
Key Features
5 V power supplied by a USB connector
USB 2.0 full speed compatible interface
USB standard A to mini B cable
SWIM specific features
1.65 V to 5.5 V application voltage supported on SWIM interface
SWIM low-speed and high-speed modes supported
SWIM programming speed rate: 9.7 Kbytes/s in low speed and 12.8 Kbytes/s in high speed
SWIM cable for connection to the application via an ERNI standard vertical connector  or horizontal connector 
SWIM cable for connection to the application via a pin header or a 2.54 mm pitch connector
JTAG/serial wire debugging (SWD) specific features
1.65 V to 3.6 V application voltage supported on the JTAG/SWD interface and 5 V tolerant inputs
JTAG cable for connection to a standard JTAG 20-pin pitch 2.54 mm connector
JTAG supported
SWD and serial wire viewer (SWV) communication supported
Direct firmware update feature supported (DFU)
Status LED which blinks during communication with the PC
Operating temperature 0 to 50 °C