Use high-performance arm ®  Cortex ®- M3 is a 32-bit microcontroller with core and the highest operating frequency can reach 128mhz, Built in high-speed memory, rich I / O ports and a variety of peripherals. - 256KB Flash，36KB RAM
- Support serial single line debugging (SWD)
- 1 12 bit ADC
- 3 16 Bit Universal timers and 1 16 bit advanced timer
- 1 USB interface, 1 I2S interface, 2 I2C interfaces, 4 SPI interfaces and 3 UART interfaces
- Working voltage: 2.0V - 3.6V
- Working temperature range (ambient temperature): - 40 ℃ - 85 ℃ industrial type
- A variety of power-saving working modes support the needs of low-power applications
- Compatible with stm32f10x pin
- Provide qfn32, qfn36, lqfp32, lqfp48 and lqfp64 packages