STM32H503CBT6

제조사: 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

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

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

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.

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