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GigaDevice launches the GD32G5 series high-performance MCUs with Cortex®-M33 core, unleashing innovation potential in industrial applications

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> 32-bit Microcontrollers (MCUs)

> Automotive MCUs

> GD32A5xx Series

> GD32A503

GD32A503

Overview
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Documentation

Overview

● Cortex^®-M33 @100MHz

● Internal storage: 384KB PFlash / 48KB SRAM

● Configurable dedicated code space: 64KB DFlash / 4KB EEPROM

● Multiple high-speed automotive bus interfaces: 2x CAN FD, 3x LIN

● Wide voltage supply range: 2.7-5.5V

● Operating temperature range Grade 1: -40~125°C

● Integrated hardware verification functions (ECC/CRC)

● Real-time monitoring modes (voltage monitoring, clock monitoring)

● Built-in rich peripheral interface resources

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10 Results

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Part No	Core	Series	Package QFN32 LQFP64 LQFP48 LQFP100	Max Speed (MHz)	Flash (Bytes) 128K 256K 384K	SRAM (Bytes) 24K 32K 48K	I/O up to 88 up to 57 up to 42 up to 27	GPTM (32bit)	GPTM (16bit)	Advanced TM (16bit) ≥ ≤	HRTM	Basic TM (64bit)	Basic TM (32bit)	Basic TM (16bit)	LPTM (32bit)	LPTM (16bit)	SysTick (64bit)	SysTick (24bit)	WDG	RTC	USART+UART 1 2 3	LPUART	I2C	QSPI	SPI ≥ ≤	I2S ≥ ≤	CAN 2.0B 1xFD 2xFD	USB 2.0	Ethernet	EtherCAT Slave Controller	SDIO	MFCOM	LIN ≥ ≤	LCD-TFT	Segment LCD	Camera	IPA	SAI	TMU	EXMC	CEC	14bit ADC Units (CHs)	12bit ADC Units (CHs) 2(32) 2(27) 2(20) 2(12)	12bit DAC Units	Comp	IEEE 802.11	Bluetooth
GD32A503KBU3	Cortex®-M33	GD32A503	QFN32	100	128K	24K	up to 27	0	1	3	0	0	0	2	0	0	0	1	2	1	1	0	2	0	1	0	1xFD	0	0	0	0	1	1	0	0	0	0	0	0	0	0	0	2(12)	1	1	0	0
GD32A503KCU3	Cortex®-M33	GD32A503	QFN32	100	256K	32K	up to 27	0	1	4	0	0	0	2	0	0	0	1	2	1	1	0	2	0	1	0	1xFD	0	0	0	0	1	1	0	0	0	0	0	0	0	0	0	2(12)	1	1	0	0
GD32A503CBT3	Cortex®-M33	GD32A503	LQFP48	100	128K	24K	up to 42	0	1	3	0	0	0	2	0	0	0	1	2	1	2	0	2	0	2	1	2xFD	0	0	0	0	1	2	0	0	0	0	0	0	0	0	0	2(20)	1	1	0	0
GD32A503CCT3	Cortex®-M33	GD32A503	LQFP48	100	256K	32K	up to 42	0	1	4	0	0	0	2	0	0	0	1	2	1	2	0	2	0	2	1	2xFD	0	0	0	0	1	2	0	0	0	0	0	0	0	0	0	2(20)	1	1	0	0
GD32A503RBT3	Cortex®-M33	GD32A503	LQFP64	100	128K	24K	up to 57	0	1	3	0	0	0	2	0	0	0	1	2	1	3	0	2	0	2	1	2xFD	0	0	0	0	1	3	0	0	0	0	0	0	0	0	0	2(27)	1	1	0	0
GD32A503RCT3	Cortex®-M33	GD32A503	LQFP64	100	256K	32K	up to 57	0	1	4	0	0	0	2	0	0	0	1	2	1	3	0	2	0	2	1	2xFD	0	0	0	0	1	3	0	0	0	0	0	0	0	0	0	2(27)	1	1	0	0
GD32A503RDT3	Cortex®-M33	GD32A503	LQFP64	100	384K	48K	up to 57	0	1	4	0	0	0	2	0	0	0	1	2	1	3	0	2	0	2	1	2xFD	0	0	0	0	1	3	0	0	0	0	0	0	0	0	0	2(27)	1	1	0	0
GD32A503VBT3	Cortex®-M33	GD32A503	LQFP100	100	128K	24K	up to 88	0	1	4	0	0	0	2	0	0	0	1	2	1	3	0	2	0	2	1	2xFD	0	0	0	0	1	3	0	0	0	0	0	0	0	0	0	2(32)	1	1	0	0
GD32A503VCT3	Cortex®-M33	GD32A503	LQFP100	100	256K	32K	up to 88	0	1	4	0	0	0	2	0	0	0	1	2	1	3	0	2	0	2	1	2xFD	0	0	0	0	1	3	0	0	0	0	0	0	0	0	0	2(32)	1	1	0	0
GD32A503VDT3	Cortex®-M33	GD32A503	LQFP100	100	384K	48K	up to 88	0	1	4	0	0	0	2	0	0	0	1	2	1	3	0	2	0	2	1	2xFD	0	0	0	0	1	3	0	0	0	0	0	0	0	0	0	2(32)	1	1	0	0

Documentation

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User Manual

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Datasheet（1）
Title

EN

CN

Date
- DS-GD32A503xx-Datasheet-Rev2.0
  
  2024-11-12
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User Manual（1）
Title

EN

CN

Date
- GD32A50x-User-Manual-Rev1.4
  
  2024-07-03
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Errata（1）
Title

EN

CN

Date
- Device Limitations of GD32A503_Rev1.3
  
  2024-10-16
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Application Note（22）
Title

EN

CN

Date
- AN128 IEC61000-4-4 System level EFT Test
  
  2023-08-28
- AN127 IEC61000-4-2 System-Level ESD Test
  
  2023-08-28
- AN105 GD32 MCU Power Consumption Testing Process
  
  2023-08-28
- AN095 Methods to improve the accuracy of the GD32 MCU temperature sensor
  
  2024-06-04
- AN092 GD32 MCU GPIO structure and precautions_Rev1.4
  
  2024-9-26
- AN089 GD32 TSI TouchKey Software Library User Guide
  
  2023-08-28
- AN077 Process description about USB suspend and wake up
  
  2023-08-28
- AN075 Introduction of library invocation scheme based on MDK implementation
  
  2023-08-28
- AN073 Proper use of UID for firmware protection
  
  2023-08-28
- AN068 GD32 MCU Eclipse development environment setup tutorial for Windows
  
  2023-08-28
- AN065 FATFS file system porting based on GD32 MCU
  
  2023-08-28
- AN064 Calibration method of internal low speed oscillator using TIMER
  
  2022-12-08
- AN063 Touch Sensor Application Guidelines
  
  2022-12-08
- AN062 EMC Application Guideline of GD32 MCU
  
  2022-12-08
- AN060 Thermal management manual for GD32 MCU
  
  2022-12-08
- AN059 Methods to improve ADC sampling accuracy
  
  2022-12-08
- AN055 ESD Static Protection Manual
  
  2022-12-08
- AN052 GD32 MCU Resonator-Based Clock Circuits
  
  2022-12-08
- AN051 TVS Selection and Use of ESD Protection Devices
  
  2022-04-21
- AN050 GD32 USBFS&USBHS Firmware Library User Guide
  
  2022-04-21
- AN049 GD32 USBD Firmware Library User Guide
  
  2022-04-21
- AN036 Solution of I2C bus lock based on EEPROM communication
  
  2022-04-21
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