ST Microcontroller (STMicroelectronics) and TI Microcontroller (Texas Instruments) are two semiconductor companies that produce their own brands of microcontrollers. Although they all offer powerful processing power and rich peripheral support, they differ in some ways, mainly in terms of architecture, family selection, development tools, application areas, and product positioning. Here are a few key differences between ST microcontrollers and TI microcontrollers:

1. Chip architecture
  ST microcontroller: ST mainly uses ARM Cortex-M series cores (such as Cortex-M0, Cortex-M3, Cortex-M4, Cortex-M7, etc.), and also has 8-bit microcontrollers based on STM8 architecture. ST's STM32 series of microcontrollers dominate the market and they support a wide range of applications, from low power consumption to high performance, suitable for a variety of embedded applications.
      TI microcontrollers: TI microcontrollers mainly include the MSP430 series (16-bit architecture), Tiva C series (based on Cortex-M4), and the higher-end C2000 series (based on C28x DSP architecture). TI's MSP430 series focuses on low-power applications, while Tiva C and C2000 are used for applications requiring high-performance computing and real-time control.

2. Product series
  ST single-chip microcomputer: ST's STM32 series covers a variety of models from entry-level to high-end, with a wealth of peripherals and strong processing power. The STM32 series includes the STM32F, STM32L (low power series), STM32H (high performance series), etc., suitable for simple sensor control to complex digital signal processing tasks.
      TI Microcontroller: TI's product range is more diverse, in addition to the MSP430, there are Tiva C (mainly for high-performance applications) and C2000 (mainly for industrial control and real-time control tasks). TI's microcontrollers have significant advantages in high-performance real-time computing (such as motor c

3. Develop tools

  ST Microcontrollers: ST provides a wealth of development tools and software support, including STM32CubeIDE (Integrated Development Environment), STM32CubeMX (configuration tool), and various middleware and hardware abstraction layers (HAL). In addition, ST's development environment is usually compatible with various third-party tools (such as Keil, IAR), and developers can develop with tools they are familiar with.
      TI Microcontroller: TI provides the Code Composer Studio (CCS) as a development environment that supports all TI microcontrollers and processors. For low-power applications, TI also offers specialized low-power development tools. In addition, TI tools such as PSpice and WEBENCH can be used for circuit simulation and design.

4. Peripheral support
  ST Microcontroller: ST's STM32 series offers a wide range of peripheral interfaces, such as ADC, DAC, UART, SPI, I2C, CAN, USB, Ethernet, SDIO, etc., for embedded system applications ranging from low power consumption to high performance. The STM32 also offers many dedicated peripherals, such as graphics LCD controller, audio interface, etc., for a variety of application needs.
      TI microcontroller: TI microcontroller also has great advantages in peripheral support, especially in the field of digital signal processing (DSP) and efficient motor control. For example, the C2000 series is very suitable for control systems, including dedicated PWM, QEP (encoder interface), high-precision ADC and other peripherals. The MSP430 focuses more on low-power applications, with lower peripheral interface and sensor support。

5. Low power consumption and performance
  ST single-chip microcomputer: STM32 series single-chip microcomputer has a good balance between low power consumption and performance. The STM32L series has a special focus on low-power design and is suitable for battery-powered embedded systems. The STM32H series pursues high performance and is suitable for more demanding computing tasks.
      TI Microcontroller: TI's MSP430 series has extremely low power consumption and is suitable for long time battery powered devices. The C2000 series focuses on high performance computing and is particularly suitable for real-time control tasks such as motor drive and digital power control.    

6. Market positioning
  ST single-chip microcomputer: ST's STM32 series single-chip microcomputer is widely used in consumer electronics, automotive, industrial control, home appliances, medical equipment and other fields. ST pays special attention to the coverage of the middle and low end of the market, but there are also high-end series (such as the STM32H series) suitable for the high-performance segment.
       TI microcontroller: TI's MSP430 series and Tiva C series are more used in industrial control, automotive electronics, communications, medical instruments and other fields, especially in the need for efficient motor control and digital signal processing occasions, TI's C2000 series is very popular.

Sum up
  ST microcontroller (STM32 series) has a wide selection of peripherals and strong market applications, especially suitable for a variety of embedded applications, suitable for the development of high peripheral support and diversified applications.
      TI microcontroller has advantages in the field of low power consumption and high performance real-time control, especially suitable for digital signal processing, motor control and other applications. TI also offers different options in terms of low power consumption (MSP430 series) and high performance (Tiva C and C2000 series).