GD32F303VET6 GigaDevice ARM Cortex-M4 MCU 120MHz 512KB Flash 64KB SRAM LQFP-100 (14×14)

GD32F303VET6 Product Overview

The GD32F303VET6 is a mainstream 32-bit general-purpose microcontroller from GigaDevice, based on the ARM Cortex-M4 core, in an LQFP-100 package (14×14mm). Running at up to 120MHz, the GD32F303VET6 features 512KB Flash and 64KB SRAM. As a high-end model in the GD32F303 series, the GD32F303VET6 offers exceptional cost-performance and rich peripheral resources, making it suitable for industrial control, motor drives, consumer electronics, and IoT applications. The GD32F303VET6 is pin-compatible with the STM32F103 series, making it a mainstream choice for domestic substitution.

GD32F303VET6 Core Features

Cortex-M4 Core with 120MHz High Speed: The GD32F303VET6 is based on the ARM Cortex-M4 32-bit RISC core with FPU and DSP instruction set support. The GD32F303VET6 runs at up to 120MHz with zero-wait-state Flash access.

Large Memory: The GD32F303VET6 provides 512KB embedded Flash and 64KB SRAM.

80 GPIOs: The GD32F303VET6 offers 80 I/O ports for extensive peripheral connections.

High-Precision Analog Peripherals: The GD32F303VET6 integrates 3×12-bit ADCs (16 channels, 2.6Msps) and 2×12-bit DACs.

Rich Communication Interfaces: The GD32F303VET6 supports 3×SPI, 2×I2C, 5×USART+2×UART, 2×I2S, CAN 2.0B, USB 2.0 FS, SDIO.

Powerful Timer Resources: The GD32F303VET6 features up to 10×16-bit general-purpose timers, 2×16-bit advanced control timers (with PWM and dead-time control), 2×16-bit basic timers.

Wide Operating Voltage & Industrial Temperature: The GD32F303VET6 operates at 2.6V~3.6V, -40℃ to +85℃.

LQFP-100 Package: The GD32F303VET6 comes in an LQFP-100 (14×14mm) with 80 I/O pins.

GD32F303VET6 Applications

Industrial Control & Automation: The GD32F303VET6 is used in PLCs, inverters, servo control, industrial robotics

Motor Control & Drives: The GD32F303VET6 supports BLDC motor control, FOC vector control, balancing robots

Consumer Electronics & IoT: The GD32F303VET6 is ideal for smart home, smart appliances, POS terminals

Automotive Electronics: The GD32F303VET6 handles in-vehicle CAN bus communication, car navigation

HMI & Security: The GD32F303VET6 enables human-machine interfaces, security alarm systems

Communication & IoT: The GD32F303VET6 is used in industrial communication gateways, protocol converters

GD32F303VET6 Key Advantages

Domestic Cost-Effective MCU, Mainstream STM32 Alternative: The GD32F303VET6 is pin-compatible with STM32F103 series for direct replacement.

120MHz Cortex-M4 Core for Superior Performance: The GD32F303VET6 features FPU and DSP support for industrial and real-time applications.

Large Memory & Rich I/O: The GD32F303VET6 provides 512KB Flash, 64KB SRAM, 80 GPIOs.

High-Precision Analog Peripherals: The GD32F303VET6 integrates 3×12-bit ADCs and 2×12-bit DACs for motor control and sensor applications.

Rich Communication Interfaces: The GD32F303VET6 supports CAN, I2C, SPI, USART, USB 2.0 FS, SDIO.

Mature Ecosystem: The GD32F303VET6 is compatible with Keil, IAR, GCC; full documentation and hardware guides are available for the GD32F303VET6.

Domestic Supply with Stable Availability: The GD32F303VET6 offers a reliable supply chain and development ecosystem.

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FAQ

1. What is GD32F303VET6？

The GD32F303VET6 is a 32-bit high-performance microcontroller (MCU) from GigaDevice, based on the ARM® Cortex®-M4 core with integrated single-precision FPU and DSP instructions. The GD32F303VET6 belongs to the GD32F303 mainstream series, operating at up to 120MHz with zero-wait Flash access for maximum efficiency.

2. What are the key specifications of GD32F303VET6？

• Core: The GD32F303VET6 uses ARM Cortex-M4 with FPU and DSP

• Frequency: The GD32F303VET6 runs up to 120MHz

• Memory: The GD32F303VET6 provides 512KB Flash + 64KB SRAM

• I/Os: The GD32F303VET6 has 80 GPIO pins

• ADC: The GD32F303VET6 includes 3×12-bit, up to 16 channels, 2.6Msps sampling rate

• DAC: The GD32F303VET6 features 2×12-bit

• Operating Voltage: The GD32F303VET6 operates at 2.6V ~ 3.6V

• Temperature: The GD32F303VET6 works from -40°C ~ +85°C (industrial grade)

• Package: The GD32F303VET6 comes in LQFP-100 (14×14mm)

3. What package does GD32F303VET6 use？

The GD32F303VET6 uses an LQFP-100 package, measuring 14mm × 14mm with 0.50mm pin pitch and 1.60mm height. The GD32F303VET6 is surface-mount type (SMD) and RoHS compliant.

4. What applications is GD32F303VET6 suitable for？

The GD32F303VET6 is widely used in industrial control (data acquisition, sensor interfaces, actuator control), motor drives (FOC control algorithm cycle <3μs), consumer electronics & handheld devices, HMI, security & alarm systems, POS terminals, automotive navigation, and IoT.

5. What development tools support GD32F303VET6？

The GD32F303VET6 supports mainstream development tools including Keil MDK-ARM (with GD32F30x_DFP pack) and IAR Embedded Workbench. Debuggers supported for the GD32F303VET6 include J-Link, ST-Link, and GD-Link. GigaDevice provides the full-featured evaluation board GD32303E-EVAL for the GD32F303VET6. PEmicro also offers debugging support for this device.

6. What is the operating temperature range of GD32F303VET6？

The operating temperature range of the GD32F303VET6 is -40°C to +85°C. The storage temperature range is -55°C to +150°C. The GD32F303VET6 is an industrial-grade device suitable for harsh environments.

7. What are the key features of GD32F303VET6？

• High performance: The GD32F303VET6 Cortex-M4 core @120MHz, 150 DMIPS processing capability

• Rich peripherals: The GD32F303VET6 includes up to 10×16-bit general-purpose timers, 2×advanced PWM control timers, 2×basic timers

• High-precision analog: The GD32F303VET6 features 3×12-bit ADC (2.6Msps) and 2×12-bit DAC

• Multiple communication interfaces: The GD32F303VET6 supports 3×SPI, 2×I2C, 3×USART, 2×UART, 2×I2S, 1×USB 2.0 FS, 1×CAN, 1×SDIO

• Low power: The GD32F303VET6 offers multiple power-saving modes for flexible optimization between wake-up latency and power consumption

• Memory Protection Unit (MPU) : The GD32F303VET6 enhances application security

8. What peripheral interfaces does GD32F303VET6 support？

• Communication: The GD32F303VET6 supports 3×SPI, 2×I2C, 3×USART, 2×UART, 2×I2S, 1×USB 2.0 FS, 1×CAN 2.0B, 1×SDIO

• Analog: The GD32F303VET6 provides 3×12-bit ADC (up to 16 channels, 2.6Msps) and 2×12-bit DAC

• Timers: The GD32F303VET6 includes up to 10×16-bit general-purpose timers, 2×advanced control timers (with PWM and dead-time control), 2×basic timers

• GPIO: The GD32F303VET6 offers 80 GPIOs

9. What are the alternative models for GD32F303VET6？

• PIN-to-PIN compatible: STM32F303VET6 (direct hardware replacement, software migration required)

• Same series downgrade: GD32F303VCT6 (256KB Flash, LQFP-100), GD32F303RCT6 (LQFP-64)

• Same series upgrade: GD32F303ZET6 (LQFP-144)

• Other domestic alternatives: APM32F103VET6 (Geehy, pin-compatible)

10. What are the design considerations when using GD32F303VET6？

• Software migration: When porting to GD32F303VET6 from STM32F103, GD libraries are highly compatible with ST libraries, but pay attention to Flash operation timing differences and clock configuration (120MHz vs 72MHz)

• Operating voltage: The GD32F303VET6 operates at 2.6V ~ 3.6V, narrower than STM32's 2.0V ~ 3.6V — low-voltage detection thresholds may need adjustment

• Delay functions: The GD32F303VET6 executes code faster at the same frequency — _NOP() time is shorter, so non-timer based delays require adjustment

• Noise immunity: Some real-world applications report occasional resets in high-interference scenarios like motor operation — thorough testing of the GD32F303VET6 is recommended for specific applications

• Debug interface: The GD32F303VET6 supports both SWD and JTAG debug interfaces

• Power decoupling: Place appropriate decoupling capacitors near VDD pins of the GD32F303VET6 for stable power delivery