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By certification 
General description
The GD32F303xx device belongs to the mainsteam line of GD32 MCU Family.It is a new 32-bit general-purpose microcontroller based on the ARM Cortex-M4 RISC core with best cost-performance ratio in terms of enhanced processing capacity,reduced power consumption and peripheral set.The Cortex-M4 core features implements a full set of DSP instructions to address digital signal control markets that demand an effcient,easy-to-use blend of control and signal processing capabilities.It also provides a Memory Protection Unit(MPU) and powerful trace technology for enhanced application security and advanced debug support.
CPU Core |
ARM Cortex-M4 |
CPU Max Clock Speed |
120MHz |
Working Voltage |
2.6V~3.6V |
Internal Oscillator |
yes |
External Clock |
4MHz~32MHz |
FLASH |
256KB |
RAM |
48KB |
GPIO |
51 |
ADC |
3@x12bit |
DAC |
2@x12bit |
(E)PWM |
2@x16bit |
Timer16 |
6 |
U(S)ART Channels |
5 |
I2C Channels |
2 |
(Q)SPI Channels |
3 |
CAN Channels |
1 |
USB |
Full Speed |
Peripherals/Function/Protocol Stack |
On-chip Temperature Sensor；DMA；Watchdog；LIN Bus Protocol；PWM；IrDA；SDIO；RTC Real Time Clock |
Working Temperature |
-40℃~+85℃ |
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