Detailed information:

GD32F103xx Main Features

ARM® ARM® CortexTM-M3 core

· Frequency up to108 MHz

· Single-cycle multiplier and hardware divider

· NVIC support 16 interrupts,
each interrupt has 16 priority levels

Flash memory

· Flash up to 3072 KB

· SRAM up to 96 KB

· 2KB ISP loader ROM

Low-power management

· Support power saving mode: sleep, deep-sleep and standby mode

· Independent battery supply for RTC and backup register

High performance analog peripherals

· 3 x 12bit, 1μs ADC

· 2 x DAC

Varity of peripherals interface

· Up to 5 x USART/Irda/LIN/ISO7816

· Up to 3 x SPI (18Mbit/s)

· Up to 2 x I2C (400Kbit/s)

· Up to 2 x CAN 2.0 B (1Mbit/s)

· USB 2.0 FS (12Mbit/s)

On-chip resources

· 1 x Advanced Timer, 1 x SysTick Timer, up to 10 x GPTM, 2 x WDT

· 2 x DMA supported

· POR,PDR and LVD

· 80% available GPIO

· 32 bit CRC