GD32F103VCT6 GigaDevice ARM Cortex-M3 MCU 108MHz 256KB Flash 48KB SRAM LQFP-100 (14×14)

GD32F103VCT6 Product Overview

The GD32F103VCT6 is a mainstream 32-bit general-purpose microcontroller from GigaDevice, based on the ARM Cortex-M3 core, in an LQFP-100 package (14×14mm). Running at up to 108MHz, the GD32F103VCT6 features 256KB Flash and 48KB SRAM. As a mainstream model in the GD32F103 series, the GD32F103VCT6 offers exceptional cost-performance and rich peripheral resources, making it suitable for industrial control, motor drives, consumer electronics, and IoT applications. The GD32F103VCT6 is largely pin-compatible with the STM32F103VCT6 and is a mainstream choice for domestic substitution.

GD32F103VCT6 Core Features

Cortex-M3 Core with 108MHz High Speed: The GD32F103VCT6 is based on the ARM Cortex-M3 32-bit RISC core running at up to 108MHz with zero-wait-state Flash access. Compared to similar products (e.g., STM32F103 at 72MHz), the GD32F103VCT6 clock speed is 50% higher.

Ample Memory: The GD32F103VCT6 provides 256KB embedded Flash and 48KB SRAM.

80 GPIOs: The GD32F103VCT6 offers 80 I/O ports.

High-Precision Analog Peripherals: The GD32F103VCT6 integrates 3×12-bit ADCs (16 channels) and 2×12-bit DACs.

Rich Communication Interfaces: The GD32F103VCT6 supports up to 5 USART+UART, 2 I2C, 3 SPI, 2 I2S, 1 CAN 2.0B, 1 USB 2.0, and 1 SDIO.

Powerful Timer Resources: The GD32F103VCT6 features 4×16-bit GPTM, 2×16-bit Advanced TM, 2×16-bit Basic TM, 1×24-bit SysTick, 2×WDG, and 1×RTC.

External Memory Controller (EXMC): The GD32F103VCT6 supports external memory expansion.

Wide Operating Voltage & Industrial Temperature: The GD32F103VCT6 operates at 2.6V~3.6V, -40℃ to +85℃.

GD32F103VCT6 Applications

The GD32F103VCT6 is used in industrial control & automation: PLCs, inverters, servo control, industrial robotics

The GD32F103VCT6 is used in motor control & drives: BLDC motor control, ESCs, drone flight controllers

The GD32F103VCT6 is used in consumer electronics & handheld devices: Smart home, POS terminals

The GD32F103VCT6 is used in automotive electronics: In-vehicle CAN bus, GPS, video intercom

The GD32F103VCT6 is used in power management: Power monitoring, UPS, inverters

The GD32F103VCT6 is used in IoT & embedded systems: IoT nodes, sensor data acquisition

The GD32F103VCT6 is used in PC peripherals: Keyboards, mice, USB devices

GD32F103VCT6 Key Advantages

Domestic Cost-Effective MCU, Mainstream STM32 Alternative: The GD32F103VCT6 is a mainstream domestic alternative to the STM32F103VCT6. The GD32F103VCT6 is largely pin-compatible with minimal PCB changes required; software-compatible with STM32 standard libraries.

108MHz Clock Speed for Superior Performance: The GD32F103VCT6 is based on the ARM Cortex-M3 core running at up to 108MHz, delivering 50% higher performance compared to STM32F103 series (72MHz). The GD32F103VCT6 has a lower core voltage (1.2V) for improved power efficiency.

Rich Peripherals for Flexible Adaptation: The GD32F103VCT6 integrates 3×12-bit ADCs, 2×12-bit DACs, up to 10×16-bit timers, and a wide range of communication interfaces including SPI, I2C, USART, CAN, USB 2.0, SDIO, and EXMC.

Mature Ecosystem for Rapid Development: The GD32F103VCT6 offers high software compatibility with the STM32F103 series, supporting mainstream IDEs including Keil, IAR, and GCC. Complete datasheets and development guides for the GD32F103VCT6 are available from GigaDevice.

Domestic Supply with Stable Availability: As an original GigaDevice product, the GD32F103VCT6 offers stable supply and a mature development ecosystem, making it a preferred choice for domestic substitution.

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FAQ

1. What is GD32F103VCT6？

The GD32F103VCT6 is a 32-bit general-purpose microcontroller (MCU) from GigaDevice, based on the ARM® Cortex®-M3 core. The GD32F103VCT6 belongs to the GD32F103 mainstream series and leverages GigaDevice's advanced "gFlash" technology for zero-wait Flash access, delivering high performance with low power consumption and exceptional cost-effectiveness.

2. What are the key specifications of GD32F103VCT6？

• Core: The GD32F103VCT6 uses ARM Cortex-M3, up to 108MHz

• Memory: The GD32F103VCT6 provides 256KB Flash + 48KB SRAM

• I/Os: The GD32F103VCT6 has 80 GPIO pins

• ADC: The GD32F103VCT6 includes 3×12-bit, 16 channels

• DAC: The GD32F103VCT6 features 2×12-bit

• Operating Voltage: The GD32F103VCT6 operates at 2.6V ~ 3.6V

• Temperature: The GD32F103VCT6 works from -40°C ~ +85°C (industrial grade)

• Package: The GD32F103VCT6 comes in LQFP-100 (14×14mm)

3. What package does GD32F103VCT6 use？

The GD32F103VCT6 uses an LQFP-100 package, measuring 14mm × 14mm with 0.50mm pin pitch. The GD32F103VCT6 is surface-mount type (SMD) and RoHS compliant, with standard packaging of Tray.

4. What applications is GD32F103VCT6 suitable for？

The GD32F103VCT6 is widely used in industrial control, Human-Machine Interfaces (HMI), motor drives, power monitoring and alarm systems, consumer and handheld devices, solar PV control, touch panels, and IoT devices. The GD32F103VCT6 series is also suitable for quadcopter flight controllers and industrial automation projects.

5. What development tools support GD32F103VCT6？

The GD32F103VCT6 supports mainstream development tools including Keil MDK, IAR Embedded Workbench, and GCC. GigaDevice provides the GD32F10x standard firmware library with drivers and example code for the GD32F103VCT6. Debuggers supported for the GD32F103VCT6 include J-Link and GD-Link. The chip is also compatible with STM32CubeMX and Arduino Core.

6. What is the operating temperature range of GD32F103VCT6？

The operating temperature range of the GD32F103VCT6 is -40°C to +85°C. The GD32F103VCT6 is an industrial-grade device suitable for harsh environments.

7. What are the key features of GD32F103VCT6？

• High performance: The GD32F103VCT6 Cortex-M3 core @108MHz with zero-wait Flash access

• Rich peripherals: The GD32F103VCT6 includes 4×16-bit general-purpose timers, 2×16-bit advanced timers, 2×16-bit basic timers

• Multiple communication interfaces: The GD32F103VCT6 provides 5×USART, 3×SPI, 2×I2C, 2×I2S, 1×CAN 2.0B, 1×USB 2.0 FS, 1×SDIO

• External Memory Controller (EXMC): The GD32F103VCT6 supports external memory expansion

• High-precision analog: The GD32F103VCT6 features 3×12-bit ADC (16 channels) + 2×12-bit DAC

• Low power: The GD32F103VCT6 supports multiple low-power modes

8. What peripheral interfaces does GD32F103VCT6 support？

• Communication: The GD32F103VCT6 supports 5×USART, 3×SPI, 2×I2C, 2×I2S, 1×CAN 2.0B, 1×USB 2.0 FS, 1×SDIO

• Memory Expansion: The GD32F103VCT6 provides 1×EXMC external memory controller

• Analog: The GD32F103VCT6 features 3×12-bit ADC (16 channels) and 2×12-bit DAC

• Timers: The GD32F103VCT6 includes 4×16-bit general-purpose timers, 2×advanced PWM timers, 2×basic timers

• GPIO: The GD32F103VCT6 offers 80 GPIOs

9. What are the alternative models for GD32F103VCT6？

• PIN-to-PIN compatible: STM32F103VCT6 (direct hardware replacement, software migration required)

• Same series upgrade: GD32F103VET6 (512KB Flash), GD32F103ZET6 (LQFP-144)

• Same series downgrade: GD32F103RCT6 (256KB Flash, LQFP-64)

• Other domestic alternatives: AT32F403AVCT7 (Artery), APM32F103VCT6 (Geehy)

10. What are the design considerations when using GD32F103VCT6？

• Software migration: When porting to GD32F103VCT6 from STM32F103, modify the HSE timeout value (increase it) — otherwise normal reset operation may be affected

• Operating voltage difference: The GD32F103VCT6 operates at 2.6V ~ 3.6V, narrower than STM32 (2.0V ~ 3.6V)

• Core voltage difference: The GD32F103VCT6 core voltage is 1.2V, while STM32 is 1.8V

• Debug interface: The GD32F103VCT6 supports both SWD and JTAG debug interfaces

• Power decoupling: Place appropriate decoupling capacitors (e.g., 100nF) near VDD pins of the GD32F103VCT6 for stable power delivery

• PCB layout: The GD32F103VCT6 LQFP-100 package (14×14mm) with 0.50mm pin pitch is suitable for high-density PCB designs