The STM32H743AII6 is a microcontroller from STMicroelectronics in the STM32H7 series. It belongs to a family of ARM Cortex-M7 based microcontrollers that are widely used for high-performance embedded applications.
Packaging Information:
The STM32H743AII6 comes in a LQFP-176 package, which means it has 176 pins. The "LQFP" stands for Low-Profile Quad Flat Package.
Pin Function Specification & Circuit Principles:
The STM32H743AII6 has 176 pins, and each pin has specific functions for various capabilities such as GPIO, ADC, DAC, Communication interface s (I2C, SPI, UART, etc.), timers, and others. The detailed pinout and function of each pin would be extensive due to the sheer number of pins, and it would require a complete datasheet to cover all of the individual pin functions.
Here’s a brief idea of the types of functionalities:
GPIO (General Purpose Input/Output): Some pins can function as standard GPIOs, and they are configurable as either input or output. For instance, some of the pins serve as analog inputs, outputs, or even PWM channels.
Analog Pins: Several pins on the STM32H743AII6 are used for analog functions, including ADC (Analog-to-Digital Converter) inputs and DAC (Digital-to-Analog Converter) outputs. Some pins are multiplexed to offer both digital and analog functionality.
Communication Interfaces:
I2C (Inter-Integrated Circuit): Several pins on the MCU are dedicated to I2C communication, supporting data transfer between the MCU and various peripherals. SPI (Serial Peripheral Interface): Multiple SPI buses are supported for high-speed data transfer with peripherals like sensors and Memory devices. USART (Universal Synchronous Asynchronous Receiver Transmitter): Pins for UART and USART are provided to facilitate serial communication.Timers: The STM32H743AII6 supports multiple timers for generating PWM, measuring time, and controlling various systems.
Power Pins: Specific pins are reserved for power supply, including VDD, VSS, VDDA, and VSSA.
Example of Pin Function Mapping:
Here’s an example table format of the pinout mapping for a few select pins:
Pin Number Pin Name Pin Function Description 1 VSS Ground Common ground for the MCU and external circuits. 2 VDD Power Supply Power input for the MCU. Must be between 2.0V to 3.6V for proper operation. 3 PA0 GPIO, ADC1_IN1 General-purpose I/O pin. Can also be used as ADC input. 4 PA1 GPIO, ADC1_IN2 General-purpose I/O pin. Can also be used as ADC input. 5 PA2 USART2_TX, GPIO Can be used for USART2 transmit pin or as a general-purpose I/O. 6 PA3 USART2_RX, GPIO Can be used for USART2 receive pin or as a general-purpose I/O. 7 PB0 SPI1_SCK, GPIO Pin for SPI clock or general-purpose I/O. 8 PB1 SPI1_MISO, GPIO Pin for SPI master input slave output or general-purpose I/O. 9 PB2 SPI1_MOSI, GPIO Pin for SPI master output slave input or general-purpose I/O. 10 PB3 SPI1_NSS, GPIO Pin for SPI chip select or general-purpose I/O.This table can be expanded to cover all 176 pins. Due to the vast number of pin functionalities, a complete pinout table can be found in the STM32H743AII6 datasheet, which provides a detailed description of each pin's functionality and any available multiplexed options.
Frequently Asked Questions (FAQs):
Here is a sample FAQ list for the STM32H743AII6:
What is the voltage range for STM32H743AII6? The STM32H743AII6 operates with a voltage range of 2.0V to 3.6V on the VDD pins.
How many GPIO pins does the STM32H743AII6 have? The STM32H743AII6 has 176 pins, and many of these can be configured as GPIO pins.
What are the communication interfaces available on STM32H743AII6? The STM32H743AII6 supports I2C, SPI, USART, CAN, and more.
Can STM32H743AII6 handle analog signals? Yes, it has analog inputs (ADC) and analog outputs (DAC) on specific pins.
How do I use PWM on STM32H743AII6? The STM32H743AII6 has multiple timers capable of generating PWM signals through specific GPIO pins.
What is the maximum clock speed of STM32H743AII6? The STM32H743AII6 runs at a maximum clock speed of 480 MHz.
Is STM32H743AII6 compatible with Arduino? No, STM32H743AII6 is not directly compatible with Arduino, but it can be used with other development environments like STM32CubeIDE.
Can STM32H743AII6 support external memory? Yes, it supports external Flash and SRAM memory via the external memory interface.
Does STM32H743AII6 support USB communication? Yes, it supports both USB host and USB device functionality.
How many timers does the STM32H743AII6 have? The STM32H743AII6 has 14 timers, which can be used for PWM, time measurement, etc.
What are the operating temperature ranges for STM32H743AII6? The STM32H743AII6 operates in a temperature range of -40°C to +85°C.
Can STM32H743AII6 be used in automotive applications? Yes, it can be used in automotive applications, depending on the operating conditions.
What is the memory capacity of STM32H743AII6? It has 2MB of Flash memory and 1MB of SRAM.
Can STM32H743AII6 be programmed using ST-Link? Yes, you can program STM32H743AII6 using an ST-Link debugger/programmer.
How many ADC channels are available on STM32H743AII6? The STM32H743AII6 has up to 24 channels of ADC.
What is the maximum resolution of the ADC in STM32H743AII6? The ADC in STM32H743AII6 has a maximum resolution of 12 bits.
Can STM32H743AII6 operate as a master or slave in I2C communication? Yes, it can function as both a master and slave in I2C communication.
Does STM32H743AII6 support DMA? Yes, STM32H743AII6 has Direct Memory Access (DMA) channels.
What is the power consumption of STM32H743AII6? The power consumption depends on the operating conditions, but in active mode, it consumes about 200mA at full load.
What tools are available for STM32H743AII6 development? You can use STM32CubeIDE, STM32CubeMX, and external debuggers like ST-Link for development.
For a more exhaustive set of questions and answers, you should consult the detailed STM32H743AII6 datasheet.
