Технические характеристики
Производитель: STMicroelectronics
Device Type: Next-generation mainstream 32-bit ARM Cortex-M33 microcontroller built on advanced 40nm process, focused on embedded security, energy efficiency and general industrial control scenarios
Electrical and Hardware Parameters
Processing core: Cortex-M33 core equipped with hardware floating-point unit, memory protection unit and ARM TrustZone security architecture, maximum operating frequency 250 MHz
Memory configuration
Internal flash memory: 128 KB
System SRAM: 64 KB
One-time programmable memory area for configuration storage
Operating supply voltage range: 1.7 V to 3.6 V
Ambient operating temperature range: -40 °C to +85 °C
Package specification: 48-pin LQFP surface mount package, with 37 configurable general purpose input and output pins
Integrated On-Chip Peripherals
Analog peripherals
Single 12-bit multi-channel ADC module supporting multiple external analog signal sampling
High precision RTC real-time clock circuit, able to run continuously powered by backup battery after main power disconnection
Timing control peripherals
Multiple 16-bit general-purpose and advanced timers for multi-channel PWM waveform generation, encoder signal acquisition and timing tasks
Independent watchdog and window watchdog circuits to prevent program abnormal operation
Communication interfaces
Four UART/USART serial ports, three SPI synchronous buses, two I2C two-wire interfaces
CAN FD bus controller for high-speed industrial field communication
USB full-speed device interface for data exchange and firmware upgrading
Other built-in functional modules
Multi-channel DMA controller to realize autonomous data transmission without CPU participation
Hardware CRC calculation engine, true random number generator
Flexible power supply monitoring circuit with power down detection and brown-out protection
Core Functional Advantages
Built-in complete hardware security framework based on TrustZone technology, supporting secure storage, encrypted firmware updating and access permission isolation, effectively preventing firmware tampering and data theft, which greatly improves device information safety.
Adaptive memory acceleration architecture eliminates flash reading delay, ensuring stable execution efficiency when the core runs at the maximum clock speed.
Rich hierarchical power management modes are provided. Devices can switch between high-performance running state and multiple low-power dormant states freely, balancing computing performance and power consumption, ideal for battery-powered portable terminals.
All general I/O pins have internal pull-up and pull-down resistors and built-in electrostatic protection circuits, with outstanding anti-interference ability suitable for light industrial and smart home environments.
Each chip is pre-programmed with exclusive unique identification number, convenient for product production management, authorization verification and anti-counterfeiting design.
Optimized peripheral layout and power circuit structure simplify peripheral circuit design and reduce overall material costs.
Типичные сценарии применения
Smart home equipment main control boards
Portable handheld measuring and testing instruments
Low-power industrial wireless sensor nodes
Small servo and stepper motor drive control units
Intelligent locker, access control and security alarm terminals
Consumer electronic peripheral embedded control modules
