Description：

The STM32F103xC, STM32F103xD and STM32F103xE performance line family 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.

Features：

• Core: Arm® 32-bit Cortex®-M3 CPU

– 72 MHz maximum frequency, 1.25 DMIPS/MHz(Dhrystone 2.1) performance at 0 wait statememory access

– Single-cycle multiplication and hardwaredivision

• Memories

– 256 to 512 Kbytes of Flash memory

– up to 64 Kbytes of SRAM

– Flexible static memory controller with 4 ChipSelect. Supports Compact Flash, SRAM,PSRAM, NOR and NAND memories

– LCD parallel interface, 8080/6800 modes

• 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 with calibration

– 32 kHz oscillator for RTC with calibration

• Low power

– Sleep, Stop and Standby modes

– VBAT supply for RTC and backup registers

• 3 × 12-bit, 1 µs A/D converters (up to 21channels)

– Conversion range: 0 to 3.6 V

– Triple-sample and hold capability

– Temperature sensor

• 2 × 12-bit D/A converters

• DMA: 12-channel DMA controller

– Supported peripherals: timers, ADCs, DAC,SDIO, I2Ss, SPIs, I2Cs and USARTs

• Debug mode

– Serial wire debug (SWD) & JTAG interfaces

– Cortex®-M3 Embedded Trace Macrocell™

• Up to 112 fast I/O ports

– 51/80/112 I/Os, all mappable on 16 externalinterrupt vectors and almost all 5 V-tolerant

 Up to 11 timers

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

– 2 × 16-bit motor control PWM timers with deadtime generation and emergency stop

– 2 × watchdog timers (Independent and Window)

– SysTick timer: a 24-bit downcounter

– 2 × 16-bit basic timers to drive the DAC

• Up to 13 communication interfaces

– Up to 2 × I2C interfaces (SMBus/PMBus)

– Up to 5 USARTs (ISO 7816 interface, LIN, IrDAcapability, modem control)

– Up to 3 SPIs (18 Mbit/s), 2 with I2S interfacemultiplexed

– CAN interface (2.0B Active)

– USB 2.0 full speed interface

– SDIO interface

• CRC calculation unit, 96-bit unique ID

• ECOPACK® packages