on October 27th 41,536

ST-LINK/V2: Pinout, Specifications, and Datasheet

This article takes you through the ST-LINK/V2, a well-regarded tool that amplifies connectivity and functionality. Key topics will cover its pinout configuration, delve into its 3D model, and spotlight specifications. Such understanding expands the horizons of STM microcontrollers in diverse applications. By grasping these interfaces and tools, you can transform embedded systems, opening doors to innovation and superior technology solutions. Effective communication with microcontrollers can drive progress in automation, control systems, and more.

Catalog

What is the ST-LINK/V2?

The ST-LINK/V2 facilitates debugging and programming for STM8 and STM32 microcontrollers. Utilizing SWIM and JTAG/SWD interfaces, it enables effective communication with application boards. The ST-LINK/V2-ISOL variant offers digital isolation, protecting from voltages up to 1000 Vrms during debugging sessions. SWIM and JTAG/SWD interfaces provide seamless interaction with diverse microcontroller architectures. SWIM is suited for the STM8 series. JTAG/SWD is designed for the STM32 series. This flexibility supports engaged in various projects, enhancing the adaptability of debugging and programming tools.

Digital isolation in the ST-LINK/V2-ISOL model delivers protection against electrical interference, beneficial in environments with high voltages. This feature aids industrial and automotive applications where reliability is important. Such isolation helps protect both the device and the development environment, reflecting best practices in safety engineering. Many praise the ST-LINK/V2 for its ability to tackle complex debugging tasks. Its efficiency contributes to the iterative development process, lessening the time spent diagnosing and resolving issues. Gathering feedback and adapting to different environments enhances the debugging, underlining the continued evolution and support needed from tool manufacturers.

ST-LINK/V2 Equivalents

• ATXMEGA16A4U-AU

• ATXMEGA128A3U-AU

• PIC16F716-I/P

Product Inclusion List

Cable Connections

USB cable (Standard A to Mini-B). Feel the link between devices.

Debugging Tools

ST-LINK/V2 , a companion for those deep dives into code analysis and refinement.

Connector Options

SWIM connector, for those moments when cost-effectiveness meets functionality.

Ribbon Connections

SWIM flat ribbon, equipped with a standard ERNI connector, bridging hardware seamlessly.

JTAG/SWD Options

Flat ribbon with a 20-pin connector. Whether it's JTAG, SWD, or SWV, there's a path for every signal.

ST-LINK/V2 Pin Configuration

Pin Number	Pin Name	Description
1	VDD	Power supply to the target MCU
2	DATA	Data line for SWD (Serial Wire Debug)
3	GND	Ground connection
4	RESET	Reset line, active low for resetting the MCU

ST-LINK/V2 Symbol, Footprint, and CAD Model

ST-LINK/V2 Specifications

Type	Parameter
Weight	145.14958g
Part Status	Active
Type	Debugger, Programmer (In-Circuit/In-System)
Interface	USB
Evaluation Kit	Yes
Contents	Board(s), Cable(s)
Length	154.94mm
REACH SVHC	No SVHC
RoHS Status	RoHS3 Compliant
Packaging	Box
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Operating Supply Voltage	5V
Data Bus Width	8b
Core Architecture	ARM
Height	29.972mm
Width	108.982mm
Radiation Hardening	No
Lead Free	Lead Free

Features of ST-LINK/V2

SWIM Protocol Flexibility

The SWIM interface supports voltage levels ranging from 1.65V to 5.5V, enabling interaction with various microcontrollers. It offers both low and high-speed modes, excelling in debugging and programming tasks. Others value the SWIM protocol for its dynamic voltage handling, enhancing performance in complex environments.

JTAG/SWD Interface

The JTAG/SWD interface, supporting voltages from 1.65V to 3.6V, fosters stable communication. Designed for effective troubleshooting and firmware programming, its voltage compatibility makes it ideal for environments requiring consistent data exchange.

Firmware Update

A notable feature of the ST-LINK/V2 is the direct firmware update capability. This allows devices to stay current with new functionalities without extensive reconfiguration, streamlining development and boosting productivity.

LED Status Indicator

The status LED offers instant visual feedback, aiding in efficient monitoring and troubleshooting. In fast-paced development settings, quick diagnostics provided by this feature are invaluable.

Comparing ST-LINK Variants: V2 Mini, V2, and Original

COMPARE	ST-LINK/V2 (MINI)	ST-LINK/V2	ST-LINK	REMARKS
SWD voltage range	1.65V - 3.6V	1.65V - 3.6V	3V - 3.6V	ST-LINK/V2 and ST-LINK/V2 (mini) support STM32 low voltage devices
SWIM voltage range	1.65V - 5.5V	1.65V - 5.5V	1.65V - 5.5V
Supports SWV	NO	YES	NO	For the moment, only STM32 supports SWV while STM8 doesn't
Debug interfaces	2	2	1	ST-LINK/V2 and ST-LINK/V2 (mini) support STM8/STM32 with separated interfaces
LED indicator	Dual-color LED	Dual-color LED	Red LED	Dual-color LED allows indicating more status
Fuse	YES	NO	NO	Fuse for avoiding harm by a short circuit

STM32F070CBT6 Manufacturer Information

STMicroelectronics, celebrated for its adeptness in semiconductor solutions, offers an extensive array of products within the microelectronics sphere. Excelling in system-on-chip technology, the company possesses a broad intellectual property portfolio. Focused on innovation, they tackle industry challenges, particularly in energy management, connectivity, and security. Through diligent research efforts and market understanding, STMicroelectronics remains influential in semiconductor. The STM32F070CBT6 embodies the company's commitment to versatile and efficient solutions. Their technological capabilities highlight innovation and strategic insight as elements in maintaining industry relevance.

Datasheet PDF

ST-LINK/V2 Datasheets:

ST-LINK/V2 User Manual.pdf

Frequently Asked Questions [FAQ]

1. How many pins does the ST-LINK/V2 have?

The ST-LINK/V2 includes four primary pins. These pins manage functions such as power supply, ground connection, clock signal, and data transfer. They form the interface needed for programming and debugging, enabling communication with STM8 and STM32 microcontrollers. Understanding their configuration can provide greater stability and efficiency in any projects.

2. What is the purpose of the ST-LINK/V2?

The ST-LINK/V2 acts as a programmer and in-circuit debugger for STM8 and STM32 microcontrollers. It enhances by integrating smoothly into development environments. Features include advanced debugging, firmware upgrades, and efficient program loading. Appreciating its flexibility can streamline the development process, saving time and resources while ensuring precise microcontroller applications.