The ARM STM32 and 51 MCU perfect compatibility combine which can be regarded as a professional STM32 development board also can be regarded as a professional 51 MCU development board they will bring you new learning experience. - Use ARM 32bit Cortex-M3 CPU working frequency can reach 72Mand 1.25 DMIPS/MHz - 0 waiting for access memorizer - Single cycle hardware multiplication and division - 64KB Flash - 20KB SRAM - Clock reset and power management - 0 to 3.6V power supply and the I/O base pin - Power on / power down reset (POR/PDR) programmable voltage monitor (PVD) - Embedded 4 to 16MHz high-speed crystal oscillator - Embedded 8MHz RC oscillator - Internal 40KHz RC oscillator - PLL supply CPU clock - 32 KHz RTC oscillator with calibration - Low-power dissipation (A: 3 kinds of energy saving mode: sleep stop and standby mode; B: VBAT power supply for the RTC and spare register) - Debug mode: Serial line debugging (SWD) and JTAG debugging interface - DMA controller: - 7 channel DMA controller - Support peripheral: timer ADC SPI I2C and USART - One of 12-bit A/D converter 1 us the conversion time (16 channel) - As many as 80 fast I/O port - 26 / 37 / 51 / 80 one of multi-function two-way 5V compatible I/O port - All the I/O interface can image to 16 external interruption - As many as seven timers - As many as three 16bit timer each timer has up to four for input / output compare / PWM or pulse count channel - 16-bit 6 channel advanced control timer: - A. as many as six road PWM output - B. dead zone control edge / middle alignment waveform and emergency braking - Two 16-bit the watchdog timer (independent and window type) system time timer: 24 bits from minus type - As many as nine communication interface - Two I2C interface (SMBus / PMBus) - 3 USART interface support ISO7816 LIN IrDA interface and demodulation control - Two SPI synchronous serial interface (18M/Sec) - CAN interface (2.0B active) - USB 2.0 interface at full speed - 2 of 12 A/D converter 1 us the conversion time (16 channel) - Conversion range: 0 to 3.6 V - Double sampling keep function - The temperature sensor (STM32 cabin temperature sensor) - Packing list: - 1 x Main board - 1 x Stepping motor - 1 x DC motor - 1 x 3.7" TFT touch screen - 1 x 2.5" 1602 screen - 1 x USB cable (80cm) - 1 x Software CD - 4 x Ribbon cable (18cm) - 1 x Dupont line (18cm) - 1 x Crystal - 4 x Mini Jumper - 1 x Controller (1 x CR2025 included) - 1 x STM32 board