GigaDevice Semiconductor Inc.
GD32F303xx
ARM
®
Cortex
®
-M4 32-bit MCU
Datasheet
GD32F303xx Datasheet
Table of Contents
Table of Contents ........................................................................................................... 1
List of Figures ................................................................................................................ 4
List of Tables .................................................................................................................. 5
1. General description ................................................................................................. 7
2. Device overview ....................................................................................................... 8
2.1.
2.2.
2.3.
2.4.
2.5.
2.6.
Device information ....................................................................................................................... 8
Block diagram ............................................................................................................................. 10
Pinouts and pin assignment ......................................................................................................11
Memory map ............................................................................................................................... 14
Clock tree .................................................................................................................................... 18
Pin definitions ............................................................................................................................. 19
2.6.1.
2.6.2.
2.6.3.
2.6.4.
GD32F303Zx LQFP144 pin definitions ....................................................................19
GD32F303Vx LQFP100 pin definitions ...................................................................28
GD32F303Rx LQFP64 pin definitions .....................................................................34
GD32F303Cx LQFP48 pin definitions .....................................................................38
3. Functional description .......................................................................................... 41
3.1.
3.2.
3.3.
3.4.
3.5.
3.6.
3.7.
3.8.
3.9.
3.10.
3.11.
3.12.
3.13.
3.14.
ARM
®
Cortex
®
-M4 core............................................................................................................... 41
On-chip memory ......................................................................................................................... 41
Clock, reset and supply management ...................................................................................... 42
Boot modes ................................................................................................................................. 42
Power saving modes .................................................................................................................. 43
Analog to digital converter (ADC)............................................................................................. 43
Digital to analog converter (DAC) ............................................................................................. 44
DMA ............................................................................................................................................. 44
General-purpose inputs/outputs (GPIOs) ................................................................................ 44
Timers and PWM generation ................................................................................................. 45
Real time clock (RTC) ............................................................................................................. 46
Inter-integrated circuit (I2C) .................................................................................................. 46
Serial peripheral interface (SPI) ............................................................................................ 46
Universal synchronous asynchronous receiver transmitter (USART) ............................. 47
1
GD32F303xx Datasheet
3.15.
3.16.
3.17.
3.18.
3.19.
3.20.
3.21.
Inter-IC sound (I2S) ................................................................................................................ 47
Universal serial bus full-speed device interface (USBD) ................................................... 47
Controller area network (CAN) .............................................................................................. 48
Secure digital input and output card interface (SDIO)........................................................ 48
External memory controller (EXMC) ..................................................................................... 48
Debug mode ............................................................................................................................ 49
Package and operation temperature .................................................................................... 49
4. Electrical characteristics ....................................................................................... 50
4.1.
4.2.
4.3.
4.4.
4.5.
4.6.
4.7.
4.8.
4.9.
4.10.
4.11.
4.12.
4.13.
4.14.
4.15.
4.16.
4.17.
4.18.
4.19.
4.20.
4.21.
4.22.
4.23.
4.24.
Absolute maximum ratings ....................................................................................................... 50
Operating conditions characteristics ....................................................................................... 50
Power consumption ................................................................................................................... 51
EMC characteristics ................................................................................................................... 58
Power supply supervisor characteristics ................................................................................ 58
Electrical sensitivity ................................................................................................................... 59
External clock characteristics................................................................................................... 59
Internal clock characteristics .................................................................................................... 61
PLL characteristics .................................................................................................................... 62
Memory characteristics ......................................................................................................... 63
NRST pin characteristics ....................................................................................................... 63
GPIO characteristics .............................................................................................................. 64
ADC characteristics ............................................................................................................... 65
Temperature sensor characteristics .................................................................................... 67
DAC characteristics ............................................................................................................... 67
I2C characteristics .................................................................................................................. 68
SPI characteristics ................................................................................................................. 69
I2S characteristics .................................................................................................................. 69
USART characteristics ........................................................................................................... 70
SDIO characteristics .............................................................................................................. 70
CAN characteristics ............................................................................................................... 71
USB characteristics ................................................................................................................ 71
EXMC characteristics ............................................................................................................. 72
TIMER characteristics ............................................................................................................ 75
2
GD32F303xx Datasheet
4.25.
4.26.
WDGT characteristics ............................................................................................................ 76
Parameter conditions ............................................................................................................. 76
5. Package information.............................................................................................. 77
5.1.
LQFP package outline dimensions........................................................................................... 77
6. Ordering information ............................................................................................. 79
7. Revision history ..................................................................................................... 82
3
GD32F303xx Datasheet
List of Figures
Figure 2-1. GD32F303xx block diagram
............................................................................................................. 10
Figure 2-2. GD32F303Zx LQFP144 pinouts
....................................................................................................... 11
Figure 2-3. GD32F303Vx LQFP100 pinouts
....................................................................................................... 12
Figure 2-4. GD32F303Rx LQFP64 pinouts
......................................................................................................... 13
Figure 2-5. GD32F303Cx LQFP48 pinouts
......................................................................................................... 13
Figure 2-6. GD32F303xx clock tree
..................................................................................................................... 18
Figure 4-1. I/O port AC characteristics definition
............................................................................................ 65
Figure 4-2. USB timings: definition of data signal rise and fall time
.......................................................... 71
Figure 5-1. LQFP package outline
....................................................................................................................... 77
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