STM32F103C6T6 Microcontroller：Features, Package and Application
18 September 2023
STM32F103C6T6 is a 32-bit general-purpose microcontroller chip based on the ARM Cortex M3 core. This chip belongs to a widely used integrated circuit family and provides strong support for the development of various electronic devices. Its program memory capacity is 64KB, its operating temperature ranges from -40°C to85°C, and it is packaged in trays.
Replacement and equivalent：
• It is based on ARM Cortex-M3 core with high running frequency and powerful performance.
• It has analog functions like Analog to Digital Converter (ADC).
• It integrates static RAM for storing variables and data.
• It supports multiple communication interfaces such as SPI, I2C, and UART.
• It has several general purpose input/output pins for connecting external devices.
• It supports low power mode for battery powered applications.
• It contains multiple timers and counters used to generate timer interrupts and perform time related operations.
• Automotive electronics: for complex calculations and data processing
• Smart home
• Medical equipment
• Embedded Systems
• Household appliances
• Industrial Automation: for control and monitoring of various equipment
• Consumer electronics: used to implement various advanced functions, such as speech recognition, image processing, etc.
The STM32F103C6T6 minimum system board is a development board based on the STM32F103C6T6 chip. It has rich peripherals and performance and is widely used in various embedded systems. Here are its components.
1. Crystal oscillator
The crystal oscillator is the clock source of the STM32F103C6T6 minimum system board. It provides a stable clock signal so that the main control chip can work normally. Common crystal oscillator frequencies are 8MHz, 12MHz, 16MHz, etc.
2. Main control chip
The main control chip is the core part of the STM32F103C6T6 minimum system board. It is a high-performance 32-bit microcontroller with rich peripherals and powerful computing capabilities. It supports a variety of communication interfaces such as SPI, I2C and UART, and also has analog peripherals such as ADC, DAC, and PWM, and can be widely used in various embedded systems.
3. USB to serial port chip
The USB to serial port chip is the communication interface part of the STM32F103C6T6 minimum system board. It can convert USB interface into UART serial interface to facilitate communication with PC. Common USB to serial port chips include CH340 and CP2102.
4. Power chip
The power chip is the power management part of the STM32F103C6T6 minimum system board. It can convert external power supply into the voltage and current required by the main control chip. Generally, the power chip can accept an input voltage of 3.3V or 5V and convert it to the voltage required by the main control chip.
Both are two microcontroller chips launched by ST Microelectronics. They differ in the following aspects:
• Number of pins
STM32F103C6T6 has 32 pins, while STM32F103C8T6 has 48 pins.
• Number of peripherals
STM32F103C8T6 has three timers, while STM32F103C6T6 has only two. STM32F103C8T6 also has two I2C buses, three USART serial ports and two SPI interfaces, while STM32F103C6T6 has only one I2C bus, one USART serial port and one SPI interface.
• Memory capacity
The memory capacity of STM32F103C6T6 is 32 KB, while the memory capacity of STM32F103C8T6 is 64 KB. In addition, the SRAM memory capacities of the two are 20 KB and 10 KB respectively.
• Number of PWM channels
PWM (Pulse Width Modulation) is a technology that converts digital signals into analog signals and is widely used in mechanical, electrical, communications and other fields. The STM32F103C8T6 has five PWM output channels, while the STM32F103C6T6 only has four.
1. Optimize power management
It supports a variety of low-power consumption modes and can flexibly adjust the system's operation mode according to different application scenarios. In scenarios that do not require high computing power, appropriately reducing system power consumption can improve system performance.
2. Choose the appropriate core and frequency
It uses the ARM Cortex-M3 core and is clocked at up to 72MHz. This configuration already provides good performance in most applications. But in certain circumstances, such as when large amounts of data need to be processed or high real-time response is required, it may be necessary to increase the main frequency or select a higher-level core to meet performance requirements.
3. Optimize code
In a microcontroller, coding efficiency has a great impact on the performance of the microcontroller. On this basis, through the optimization of its algorithm and data structure, the requirements for program operation are reduced and the efficiency of program operation is improved.
4. Use memory and cache rationally
It has 128KB of Flash memory and 20KB of SRAM memory. In big data processing scenarios, we should allocate its memory and cache reasonably to prevent storage space overflow, insufficient storage space and other problems, thereby reducing the speed and efficiency of application running.