stm32f103x4和stm32f103x6表现家庭将高性能ARM Cortex M3™- 32位RISC核心在72 MHz的频率运行，高速嵌入式存储器（闪存和SRAM的高达32字节至6字节），和增强的I/O和外设连接到两APB总线的范围广泛。所有器件提供两个12位ADC，三个通用16位定时器和一个PWM定时器，以及标准和先进的通信接口：最多两i2cs和SPI接口，三个USB串行外设接口，和一个可以。

    低密度的STM32F103xx表现家族经营从2至3.6 V电源供电。这两–40 + 85°C温度范围和–40 + 105°C扩展温度范围是可用的。一套全面的省电模式允许低功耗的应用设计。

    低密度表现的STM32F103xx系列包括四种不同的封装类型的设备：36针64针。这取决于设备的选择，不同的外设包括，下面的描述了设备在这个家庭提出了完整的概述。

    这些特点使得STM32F103xx系列单片机的低密度表现了广泛的应用，如电机驱动器，应用控制，医疗和手持设备，PC和游戏外设，GPS平台，工业应用，PLC，变频器，打印机，扫描仪，报警系统，可视对讲机，和空调系统

• ARM® 32-bit Cortex® -M3 CPU Core

• 72 MHz maximum frequency,1.25 DMIPS/MHz (Dhrystone 2.1) performance at 0 wait state memory access

• Single-cycle multiplication and hardware division

• Memories

• 64 or 128 Kbytes of Flash memory

• 20 Kbytes of SRAM

• Clock, reset and supply management

• 2.0 to 3.6 V application supply and I/Os

• POR, PDR, and programmable voltage detector (PVD)

• 4-to-16 MHz crystal oscillator

• Internal 8 MHz factory-trimmed RC

• Internal 40 kHz RC

• PLL for CPU clock

• 32 kHz oscillator for RTC with calibration

• Low-power

• Sleep, Stop and Standby modes

• VBAT supply for RTC and backup registers

• 2 x 12-bit, 1 μs A/D converters (up to 16 channels)

• Conversion range: 0 to 3.6 V

• Dual-sample and hold capability

• Temperature sensor

• DMA

• 7-channel DMA controller

• Peripherals supported: timers, ADC, SPIs, I2 Cs and USARTs

• Up to 80 fast I/O ports

• 26/37/51/80 I/Os, all mappable on 16 external interrupt vectors and almost all 5 V-tolerant

• Debug mode

• Serial wire debug (SWD) & JTAG interfaces

• 7 timers

• Three 16-bit timers, each with up to 4 IC/OC/PWM or pulse counter and quadrature (incremental) encoder input

• 16-bit, motor control PWM timer with dead-time generation and emergency stop

• 2 watchdog timers (Independent and Window)

• SysTick timer 24-bit downcounter

• Up to 9 communication interfaces

• Up to 2 x I2 C interfaces (SMBus/PMBus)

• Up to 3 USARTs (ISO 7816 interface, LIN, IrDA capability, modem control)

• Up to 2 SPIs (18 Mbit/s)

• CAN interface (2.0B Active)

• USB 2.0 full-speed interface

• CRC calculation unit, 96-bit unique ID

• Packages are ECOPACK®