It is a 32-bit microcontroller (MCU) launched by STMicroelectronics (ST) and has the following characteristics:
 
- Processor performance:
- The core is ARM Cortex-M4, a 32-bit single core with a speed of up to 180MHz. It has high processing power and can quickly execute complex tasks and algorithms.
- Equipped with a floating-point unit (FPU), which can support floating-point operations. This is very helpful for applications that require complex mathematical calculations (such as signal processing, graphics processing, etc.) and can improve calculation accuracy and efficiency.
- Storage resources:
- The program storage capacity is 2MB (2M×8). The large program storage space can accommodate complex program codes and algorithms to meet various functional requirements.
- There is no relevant information on EEPROM capacity.
- The RAM size is 256K×8, providing a certain amount of memory space for data storage and temporary data caching during program running, which helps improve the operating efficiency and response speed of the system.
- Rich peripheral interfaces:
- In terms of connectivity, it supports multiple communication interfaces such as CANbus, EBI/EMI, Ethernet, I²C, IrDA, LINbus, SPI, UART/USART, USB OTG, etc., which is convenient for communication and data interaction with various external devices and is suitable for multiple application scenarios such as automotive electronics, industrial control, and the Internet of Things.
- Peripherals also include undervoltage detection/reset, DMA, I²S, POR, PWM, WDT, etc. These peripherals provide multiple functional supports for the system, such as power management, data transmission, timing control, etc., enhancing the versatility and practicability of the chip.
- Data conversion ability: It has A/D (analog-to-digital conversion) 24×12b and D/A (digital-to-analog conversion) 2×12b, which can realize the conversion between analog signals and digital signals and meet the needs of collecting and processing analog signals (such as sensor signal reading) and generating analog signals (such as controlling analog output devices).
- Operating voltage and temperature range:
- The voltage supply range is 1.8V~3.6V, which is suitable for multiple power supply environments and can meet the power supply requirements in different application scenarios. At the same time, it is also conducive to reducing power consumption.
- The operating temperature range is -40°C~85°C (TA), indicating that the chip can still work normally in a relatively harsh temperature environment and has good environmental adaptability and can be applied in occasions with harsh temperature conditions.
- Packaging form: It adopts 176-LQFP (24x24) packaging. This surface-mounted packaging has good electrical performance and heat dissipation performance, which is convenient for installation and welding on the circuit board and is suitable for electronic devices with certain space requirements.