The STM32F105xx and STM32F107xx connectivity line family incorporates the highperformance ARM? Cortex?-M3 32-bit RISC core operating at a 72 MHz frequency， highspeed embedded memories （Flash memory up to 256 Kbytes and SRAM 64 Kbytes）， and

　　an extensive range of enhanced I/Os and peripherals connected to two APB buses. All

　　devices offer two 12-bit ADCs， four general-purpose 16-bit timers plus a PWM timer， as well

　　as standard and advanced communication interfaces： up to two I2Cs， three SPIs， two I2Ss，

　　five USARTs， an USB OTG FS and two CANs. Ethernet is available on the STM32F107xx

　　only.

　　The STM32F105xx and STM32F107xx connectivity line family operates in the –40 to

　　+105 °C temperature range， from a 2.0 to 3.6 V power supply. A comprehensive set of

　　power-saving mode allows the design of low-power applications.

　　The STM32F105xx and STM32F107xx connectivity line family offers devices in three

　　different package types： from 64 pins to 100 pins. Depending on the device chosen， different

　　sets of peripherals are included， the description below gives an overview of the complete

　　range of peripherals proposed in this family.

　　These features make the STM32F105xx and STM32F107xx connectivity line

　　microcontroller family suitable for a wide range of applications such as motor drives and

　　application control， medical and handheld equipment， industrial applications， PLCs，

　　inverters， printers， and scanners， alarm systems， video intercom， HVAC and home audio

　　equipmen