STM32F401RCT6，integrated circuit embedded microcontroller stmicroelectronics parcel tray Core processor Arm cortex -M4 Magnetic core volume 32-bit single core speed 84 MHz Connectivity I C、IrDA、LINbus、SDIO、SPI、UART/USART、USB OTG ancillary equipment Power-off/reset, DMA, I.S., POR, PWM, WDT Input quantity Fifty Program memory size 256KB (256K x 8) Program memory type glitter EEPROM size - RAM size 64K x 8 Power supply voltage (Vcc/Vdd) 1.7V ~ 3.6V data converter Analog-to-digital converter 16x12b Oscillator type internal Working temperature -40 degrees Celsius to 85 degrees Celsius Installation type Surface adhesion mode Package/box 64-lead LQFP package