The STM32F103VET6 incorporates the high-performance Arm® Cortex®-M3 32-bit RISC core operating at a 72 MHz frequency, high-speed embedded memories (Flash memory up to 512 Kbytes and SRAM up to 64 Kbytes), and an extensive range of enhanced I/Os and peripherals connected to two APB buses. All devices offer three 12-bit ADCs, four general-purpose 16- bit timers plus two PWM timers, as well as standard and advanced communication interfaces: up to two I2Cs, three SPIs, two I2Ss, one SDIO, five USARTs, an USB and a CAN.

• Core:

  • Arm® 32-bit Cortex®-M3 CPU
  • Maximum operating frequency: 72 MHz
  • Performance: 1.25 DMIPS/MHz (Dhrystone 2.1) at 0 wait state memory access
  • Single-cycle multiplication and hardware division for efficient computation

  Memories:

  • Flash memory: 256 to 512 Kbytes
  • SRAM: Up to 64 Kbytes
  • Flexible static memory controller with 4 Chip Selects
  • Supports Compact Flash, SRAM, PSRAM, NOR, and NAND memory
  • LCD parallel interface (8080/6800 modes)

  Clock, Reset, and Supply Management:

  • Supply voltage range: 2.0 to 3.6 V
  • Power-on Reset (POR), Power-down Reset (PDR), and programmable voltage detector (PVD)
  • 4-to-16 MHz external crystal oscillator
  • Internal 8 MHz factory-trimmed RC oscillator
  • Internal 40 kHz RC oscillator with calibration
  • 32 kHz oscillator for Real-Time Clock (RTC) with calibration

  Low Power Modes:

  • Sleep, Stop, and Standby modes for energy-efficient operation
  • VBAT supply for RTC and backup registers

  Analog Features:

  • 3 × 12-bit ADCs with up to 21 channels and 1 µs conversion time
  • Conversion range: 0 to 3.6 V
  • Triple-sample and hold capability
  • Integrated temperature sensor
  • 2 × 12-bit DACs for analog output

  DMA and Peripherals:

  • 12-channel Direct Memory Access (DMA) controller
  • Supported peripherals: Timers, ADCs, DAC, SDIO, I2S, SPI, I2C, and USART

  Timers:

  • Up to 11 timers:
    • 4 × 16-bit general-purpose timers
    • 2 × 16-bit motor control PWM timers with dead-time generation and emergency stop
    • 2 × watchdog timers (Independent and Window)
    • SysTick timer (24-bit downcounter)
    • 2 × 16-bit basic timers for driving DAC

  Communication Interfaces:

  • Up to 13 communication interfaces, including:
    • 2 × I2C interfaces (SMBus/PMBus)
    • 5 × USARTs (ISO 7816, LIN, IrDA, modem control)
    • 3 × SPIs (up to 18 Mbit/s), 2 supporting I2S interface multiplexing
    • CAN interface (2.0B Active)
    • USB 2.0 full-speed interface
    • SDIO interface

  I/O Ports and Debugging:

  • Up to 112 fast I/O ports (51/80/112 I/Os), most of which are 5V-tolerant
  • 16 external interrupt vectors
  • Debugging support via Serial Wire Debug (SWD) and JTAG interfaces
  • Embedded Trace Macrocell™ for advanced debugging and trace capabilities

  Additional Features:

  • CRC calculation unit for data integrity
  • 96-bit unique device ID for traceability and identification
  • ECOPACK® packages for enhanced environmental performance

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