STM32F205RET7

Üretici: STMicroelectronics

Device Type: High-performance 32-bit Cortex-M3 embedded microcontroller, mass-produced industrial-grade MCU delivered on tape and reel for automated surface mount soldering

Processing core: ARM Cortex-M3 without floating-point arithmetic unit, maximum operating clock 120 MHz, built-in memory protection unit

Performance index: 150 DMIPS computing capacity, equivalent to zero waiting period program execution inside flash memory relying on ART adaptive real-time accelerator

Memory configuration

Program flash: 512 KB

System SRAM: 128 KB, plus independent 4 KB backup SRAM

One-time programmable memory: 512 bytes

Operating supply voltage range: 1.8 V to 3.6 V

Ambient working temperature range: -40 °C to +85 °C

Package specification: 100-pin LQFP plastic surface mount package, total 51 configurable general-purpose input and output pins

Analog peripheral modules

Three 12-bit multi-channel analog-to-digital converters, total 16 sampling channels, highest conversion speed 2 MSPS

Two independent 12-bit digital-to-analog converters for analog voltage output

Precision real-time clock module with timing calibration function, supporting battery backup power supply

Timing and control peripherals

Twelve 16-bit general-purpose timers, two dedicated high-precision PWM timers for motor driving

Two 32-bit ultra-long timing counters, independent window watchdog and independent watchdog circuits

Quadrature encoder interface access for mechanical position feedback collection

Communication interfaces

Six USART asynchronous serial ports, three SPI high-speed synchronous buses, three I2C two-wire buses

Two CAN 2.0B field bus controllers for industrial equipment interconnection

Dual-channel USB OTG interface, including high-speed and full-speed transmission modes

Two I2S audio interfaces with dedicated audio phase-locked loop clock

SDIO card driving interface for storage card data reading and writing

Expansion and auxiliary peripherals

FSMC flexible static memory controller, supporting SRAM, PSRAM, NOR flash, NAND flash and parallel LCD screen driving

Built-in true random number generator for encryption and verification scenarios

Parallel CMOS camera input interface for image data acquisition

Multi-channel direct memory access controller to reduce CPU data transmission load

The proprietary ART memory accelerator eliminates flash access delay under 120 MHz full-speed operation, greatly lifting program running efficiency without external high-speed memory configuration.

Multi-level power management system contains sleep mode, stop mode and standby mode. Backup SRAM and RTC can keep running with small-capacity coin cell power supply after main power failure, minimizing static power consumption of equipment in idle state.

Multi-layer bus matrix architecture realizes parallel operation of CPU, DMA and each peripheral module without resource competition, ensuring stable response of multi-task embedded systems.

All general-purpose I/O pins support 5V voltage tolerance, equipped with internal pull-up and pull-down resistors, strong anti-electromagnetic interference performance to adapt to industrial on-site complex power environments.

Integrated power supply monitoring circuit includes power-on reset, power-down detection, voltage threshold monitoring and brown-out protection, effectively avoiding program crash caused by power fluctuation.

Each chip carries exclusive 96-bit unique identification code, convenient for equipment anti-counterfeiting, production batch management and firmware authorization verification.

Industrial programmable logic controllers, frequency converters and low-voltage electrical control units

Servo motor closed-loop driving equipment and mechanical arm motion control terminals

Medical portable detection instruments and household medical monitoring equipment

Embedded human-machine touch display terminals and HVAC intelligent control panels

Industrial alarm systems, video intercom equipment and access control host

Printers, scanning equipment and office automation embedded control modules

Portable data acquisition loggers and battery-powered industrial wireless sensor nodes