GD32A503
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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
Product selector
10 Results
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Part No
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Core
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Series
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Package
QFN32
LQFP64
LQFP48
LQFP100
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Max Speed (MHz)
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Flash (Bytes)
128K
256K
384K
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SRAM (Bytes)
24K
32K
48K
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I/O
up to 88
up to 57
up to 42
up to 27
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GPTM (32bit)
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GPTM (16bit)
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Advanced TM (16bit)
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HRTM
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CPTM (16bit)
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Basic TM (64bit)
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Basic TM (32bit)
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Basic TM (16bit)
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LPTM (32bit)
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LPTM (16bit)
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SysTick (64bit)
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SysTick (24bit)
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WDG
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RTC
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USART+UART
1
2
3
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LPUART
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I2C
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QSPI
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SPI
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I2S
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CAN 2.0B
1xFD
2xFD
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USB 2.0
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Ethernet
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EtherCAT Slave Controller
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SDIO
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MFCOM
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LIN
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LCD-TFT
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Segment LCD
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Camera
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IPA
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SAI
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TMU
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EXMC
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CEC
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14bit ADC Units (CHs)
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12bit ADC Units (CHs)
2(32)
2(27)
2(20)
2(12)
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12bit DAC Units
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Comp
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IEEE 802.11
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Bluetooth
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Dflash(Bytes)
32K
64K
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SENT
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Functional Safety
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Security
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Temperature Range(TA)
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cortex®-M33 | GD32A503 | QFN32 | 100 | 128K | 24K | up to 27 | 0 | 1 | 3 | 0 | 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 | 32K | 0 | 0 | 0 | -40℃~125℃ | |
| Cortex®-M33 | GD32A503 | QFN32 | 100 | 256K | 32K | up to 27 | 0 | 1 | 4 | 0 | 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 | 64K | 0 | 0 | 0 | -40℃~125℃ | |
| Cortex®-M33 | GD32A503 | LQFP48 | 100 | 128K | 24K | up to 42 | 0 | 1 | 3 | 0 | 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 | 32K | 0 | 0 | 0 | -40℃~125℃ | |
| Cortex®-M33 | GD32A503 | LQFP48 | 100 | 256K | 32K | up to 42 | 0 | 1 | 4 | 0 | 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 | 64K | 0 | 0 | 0 | -40℃~125℃ | |
| Cortex®-M33 | GD32A503 | LQFP64 | 100 | 128K | 24K | up to 57 | 0 | 1 | 3 | 0 | 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 | 32K | 0 | 0 | 0 | -40℃~125℃ | |
| Cortex®-M33 | GD32A503 | LQFP64 | 100 | 256K | 32K | up to 57 | 0 | 1 | 4 | 0 | 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 | 64K | 0 | 0 | 0 | -40℃~125℃ | |
| Cortex®-M33 | GD32A503 | LQFP64 | 100 | 384K | 48K | up to 57 | 0 | 1 | 4 | 0 | 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 | 64K | 0 | 0 | 0 | -40℃~125℃ | |
| Cortex®-M33 | GD32A503 | LQFP100 | 100 | 128K | 24K | up to 88 | 0 | 1 | 4 | 0 | 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 | 32K | 0 | 0 | 0 | -40℃~125℃ | |
| Cortex®-M33 | GD32A503 | LQFP100 | 100 | 256K | 32K | up to 88 | 0 | 1 | 4 | 0 | 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 | 64K | 0 | 0 | 0 | -40℃~125℃ | |
| Cortex®-M33 | GD32A503 | LQFP100 | 100 | 384K | 48K | up to 88 | 0 | 1 | 4 | 0 | 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 | 64K | 0 | 0 | 0 | -40℃~125℃ |
Documentation
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Datasheet（1）
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User Manual（1）
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Errata（1）
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Date
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2024-12-30
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Application Note（32）
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AN311 Scatter Loading Instructions of GD32 Embedded Builder for Arm Cortex-M Processor_Rev1.0
2026-01-26
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AN200 GD32 Embedded Builder Linker Script Files Introduction for Arm Cortex-M Processor_Rev1.0
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AN064 Calibration method of internal low speed oscillator using TIMER
2022-12-08
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2023-08-28
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AN068 GD32 MCU Eclipse development environment setup tutorial for Windows
2023-08-28
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2023-08-28
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AN075 Introduction of library invocation scheme based on MDK implementation
2023-08-28
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2023-08-28
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2023-08-28
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2024-12-20
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AN095 Methods to improve the accuracy of the GD32 MCU temperature sensor
2024-06-04
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2023-08-28
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2025-08-01
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AN264 Using the EIDE Plugin in VS Code to Develop GD32 MCU_Rev1.0
2025-08-15
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Firmware Library（1）
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2025-10-27
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2026-01-21
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2025-12-19
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