The GD32F403 is a high-performance 32-bit MCU from GigaDevice based on an Arm Cortex-M4 core with DSP and FPU, running up to 168 MHz with zero-wait-state Flash access. With large memory (up to 3MB Flash) and rich analog and communication peripherals, it suits industrial and consumer applications that combine control with signal processing.
| Core | Arm Cortex-M4 (DSP/FPU) |
| Max Frequency | 168 MHz |
| Flash | 256KB ~ 3MB |
| SRAM | 64KB ~ 128KB |
| Analog | 3× 12-bit ADC, 2× DAC |
| Connectivity | USB OTG FS, 2× CAN, SPI/I²S/I²C/USART |
| Supply Voltage | 2.6V ~ 3.6V |
| Package | LQFP64/100/144, BGA100 |
GigaDevice
China
Leading Flash Memory & 32-bit Arm MCU Maker
View all GigaDevice products → Official GigaDevice siteThe GD32F103 is a mainstream 32-bit MCU based on the Arm Cortex-M3 core running up to 108 MHz, pin-compatible with STM32F103 for easy migration. Rich peripherals (USART/SPI/I²C/USB/CAN/ADC) make it ideal for industrial control, motor drive, and consumer electronics.
The GD32E230 uses the Arm Cortex-M23 core at up to 72 MHz, targeting low cost and low power — ideal for appliance control, compact sensors, and cost-sensitive consumer products. Available in TSSOP/QFN/LQFP compact packages.
The GD25Q64 is a 64 Mbit (8 MB) serial SPI NOR Flash supporting Standard / Dual / Quad SPI at up to 120 MHz — widely used for code storage, boot loading, and data logging. Available in SOP8 / USON8 compact packages.
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