NUCLEO-F303RE 控制器特性:STM32F303RET6 in LQFP64 packageARM®32-bit Cortex®-M4 CPU72 MHz max CPU frequencyVDD from 2.0 V to 3.6 V512 KB Flash64 KB SRAMGPIO (51) with external interrupt capability12-bit ADC (4)12-bit DAC (2)RTCTimers (10)I2C (3)USART (5)SPI (4)USB 2.0 full-speedCAN http://developer.mbed.org/platforms/ST-Nucleo-F303RE/
64 KB SRAM
不错!犀利!是不是就主频略低于F4了