STMicroelectronics STM32H750VBT6

The STM32H750VBT6 microcontroller is part of the STM32H7 series, a high-performance range of microcontrollers designed by STMicroelectronics. Featuring a powerful ARM Cortex-M7 core, the STM32H750VBT6 offers numerous benefits for embedded system developers, including enhanced speed, memory capacity, and versatile peripheral options. This article covers the STM32H750VBT6 pinout, its potential for use with development boards, and how it can be integrated into various Arduino projects. Along the way, we will also touch upon key elements such as the schematic, datasheet, and bootloader, which are essential for efficient programming and circuit design.

Table of Contents

• STM32H750VBT6 Overview
• STM32H750VBT6 Pinout
• Development Boards for STM32H750VBT6
• Using STM32H750VBT6 with Arduino
• Example Projects with STM32H750VBT6
• Circuit Design for STM32H750VBT6
• STM32H750VBT6 Package and Footprint
• Sum up
• Frequently Asked Questions

STM32H750VBT6 Overview

The STM32H750VBT6 microcontroller is a 32-bit ARM Cortex-M7 device that runs at up to 480 MHz, making it highly suitable for demanding embedded applications. 

Key Feature

Dynamic Voltage and Frequency Scaling (DVFS)

Dual I2S interfaces

High-speed USB 2.0 OTG (On-The-Go)

SPI and UART interfaces

Up to 2MB of flash memory

Embedded SRAM

These features make it perfect for everything from industrial automation systems to consumer electronics. To get started with this chip, developers typically refer to the reference manual and datasheet provided by STMicroelectronics, which offer all the detailed information needed to understand its pinout, electrical characteristics, and configuration options.

STM32H750VBT6 Pinout

The pinout of the STM32H750VBT6 is crucial for anyone looking to design a custom circuit or use it on a development board. It provides a comprehensive layout of the microcontroller's pins, which include general-purpose I/O (GPIO) pins, communication interfaces, and power supply connections.

Pin Function

STM32H750VBT6 Pinout

The complete pinout diagram is crucial when designing the PCB or selecting the right pins for a given application.

Development Boards for STM32H750VBT6

To begin working with the STM32H750VBT6, it's best to start with a development board. These boards simplify access to key pins and interfaces, making prototyping quicker and easier. They often include additional features like on-board debugging and power regulation.

Popular Development Boards

STM32H750B-DK Discovery Kit:

This official development board from STMicroelectronics offers a variety of I/O options, USB OTG, microSD card support, and LCD interface. It includes debugging tools like ST-Link, making it ideal for both beginners and experienced users.

STM32H750 Nucleo Board:

A cost-effective and flexible board with essential features like the ST-LINK debugger and expansion headers for external peripherals. Perfect for general prototyping.

Blue Pill:

Although primarily known for its compatibility with the STM32F103, the Blue Pill development board can be adapted to use the STM32H750VBT6 by swapping the chip and using the necessary firmware. It's a popular choice due to its small size and low cost, typically priced under $10, making it an affordable option for hobbyists and small projects.

Third-Party Boards:

Several third-party manufacturers also offer STM32H750VBT6-compatible boards, often with unique features like specialized connectors or additional components.

Development Boards Features

On-board Debugging: Integrated tools such as ST-Link or J-Link for easy programming and troubleshooting.

Multiple I/O Options: Includes GPIO, PWM, UART, SPI, I2C, ADCs, and DACs.

Power Supply Options: USB-powered or external voltage regulators.

Expansion Headers: For easy integration of external modules.

Development Boards Price Range

The STM32H750 Nucleo board typically costs $30 to $50.

The STM32H750B-DK Discovery Kit is in the $60 to $100 range.

The Blue Pill development board is much more affordable, costing around $5 to $10.

Using STM32H750VBT6 with Arduino

STM32H750VBT6 Arduino

The STM32H750VBT6 is compatible with the Arduino IDE, making it easy to program and develop projects. Here's how to get started:

Setting Up Arduino IDE

Install STM32 Board Support: Add the STM32 board package URL in Arduino IDE's preferences and install it through the Board Manager.

Select the Right Board: Choose your STM32H750 board under Tools > Board.

Bootloader: Most STM32H750 boards come with a pre-installed bootloader, allowing you to upload code easily.

Uploading Code

Once set up, write your code in the Arduino IDE and upload it to the STM32H750VBT6 via USB. The bootloader handles the code upload process.

Benefits

Simplified Programming: Use familiar Arduino syntax for quick development.

Large Libraries: Access many pre-built libraries for sensors, displays, and more.

Community Support: Benefit from the extensive Arduino community.

Example Projects with STM32H750VBT6

The STM32H750VBT6 can be used in a wide range of projects, including:

1. IoT Projects:

The chip's fast processing speed and extensive communication options (such as Wi-Fi, Bluetooth, and Ethernet) make it ideal for Internet of Things (IoT) applications. You can integrate sensors, actuators, and communication protocols to create a connected device.

2. Robotics:

Due to its powerful processing capabilities, STM32H750VBT6 is a great choice for building robotic systems. You can use its GPIOs to control motors, servos, and sensors, and its high-speed processing ensures smooth operation.

3. Wearables:

With its small footprint, low power consumption, and high-performance features, the STM32H750VBT6 is well-suited for wearable devices such as fitness trackers or medical monitoring devices.

4. Audio Processing:

Thanks to its high-speed DSP (Digital Signal Processing) capabilities, STM32H750VBT6 is also excellent for audio applications, such as digital audio effects, microphones, and music players.

These are just a few examples of the numerous potential projects that can be realized with the STM32H750VBT6 microcontroller. Its versatility makes it suitable for hobbyists and professional developers alike.

Circuit Design for STM32H750VBT6

When designing a circuit based on the STM32H750VBT6, the first step is usually to refer to the schematic provided by STMicroelectronics or to use a reference design. The schematic includes all the necessary connections for the microcontroller, such as power supply, clock, and I/O pins. It's crucial to ensure that the voltage levels and pin connections are correctly mapped to avoid errors during development.

STM32H750VBT6 Typical application Circuitry

STM32H750VBT6 Typical application Circuitry

Designing a circuit for the STM32H750VBT6 requires attention to power delivery, clock configuration, and peripheral connections to ensure reliable operation. A typical application circuit includes the following key components:

Power Supply:

The STM32H750VBT6 operates at 3.3V, with decoupling capacitors placed near VDD and VDDA pins for stability. Use a voltage regulator to step down from higher input voltages like 5V.

Clock Source:

An 8 MHz or 25 MHz crystal with appropriate load capacitors is used for precision timing, while internal clocks can be used for less demanding applications.

Reset and Boot:

A reset circuit with a pull-up resistor and a push button connects to the NRST pin. The BOOT0 pin can be configured with pull-up/pull-down resistors to select startup mode (flash, SRAM, or bootloader).

Peripherals:

Use GPIOs for digital I/O, PWM, or ADC/DAC functions.

Connect communication interfaces like UART, SPI, I2C, or Ethernet (with external PHY) for peripherals and networking.

USB 2.0 OTG is used for device/host communication.

Debugging:

Expose SWD or JTAG pins for programming and debugging via ST-Link or other tools.

Protection and Layout:

Add ESD protection diodes and use proper grounding. Follow the microcontroller's footprint and layout recommendations from the datasheet.

STM32H750VBT6 Package and Footprint

The STM32H750VBT6 comes in a 100-pin LQFP package, ideal for surface-mount applications. Here are the key details:

Package Details:

STM32H750VBT6 package

Type: 100-pin LQFP (Low-profile Quad Flat Package)

Body Size: 14.0 mm x 14.0 mm

Pin Pitch: 0.5 mm

Overall Dimensions: 16.7 mm x 16.7 mm (including pins)

Pin Length: 0.45 mm to 0.75 mm

Lead Width: 0.13 mm to 0.27 mm

Height: Max 1.6 mm

Footprint Design:

STM32H750VBT6 Footprint

Pad Width: 0.3 mm

Pad Length: 1.2 mm

Inner Clearance: 12.3 mm (between opposing pads)

Outer Clearance: 16.7 mm x 16.7 mm

Pin Count: 100 pads, 25 per side.

Sum up

In conclusion, the STM32H750VBT6 microcontroller offers exceptional performance for embedded applications, and it can be easily used in development boards for prototyping. Its integration with the Arduino IDE further simplifies the programming process, making it an accessible choice for hobbyists and professionals. Whether you're working on a simple project or a complex embedded system, the STM32H750VBT6 offers the flexibility and power required to bring your ideas to life. With careful attention to its pinout, schematic, and datasheet, you can start building amazing systems today.

Frequently Asked Questions

Does it support USB OTG?

Yes, it supports high-speed USB 2.0 OTG for device and host communication.

What is DVFS in STM32H750VBT6?

DVFS dynamically adjusts voltage and frequency for power savings.

How do I reset the STM32H750VBT6?

It has an NRST pin to trigger a reset.

Does the STM32H750VBT6 have built-in EEPROM?

No, it does not have built-in EEPROM but can use external memory.

What is the price of STM32H750VBT6?

Prices range from $10 to $30 depending on the supplier and quantity.

Are there cheaper alternatives?

Other STM32H7 models, like the STM32H743, may be cheaper but with fewer features.