USART - TechTOnions.com

System Architecture - 32-bit Arm® Cortex®-M3 core - Up to 96MHz working frequency
Clock and Memories - HSECLK: 4MHz~16MHz externa
Power supply and low-power mode - 2.0 ~ 3.6 V reset supply voltage - Support programmable Volta
FPU - Independent FPU module supports floating point operation
ADCs and Temperature Sensor - 2 12-bit ADCs, 16 input channels are supported - ADC voltage conversion range: 0~VDDA - Double-sample and hold capability supported - 1 on-chip temperature sensor
I/O - 80/51/37/26 I/Os selectable, depending on models and packages - All I/O pins are mappable to o 16 external interrupt
Communication Interfaces - 3 USARTs, support ISO7816, LIN and IrDA - 2 I2C, support SMBus/PMBus - 2 SPIs with a maximum transfer speed of 18Mbps - 1 QSPI, support single - and four-wire access to Flash - 1 USB 2.0 FS Device - 1 CAN 2.0B, USBD and CAN can work independently at the same time
1 CRC Unit
96-bit UID
Serial wire debug SWD and JTAG interfaces
Weight : 0.17 g

If debugging is the process of removing software bugs, then programming must be the process of putting them in