GD32F103C8T6 GigaDevice ARM Cortex-M3 MCU 108MHz 64KB Flash 20KB SRAM LQFP-48 (7×7)

GD32F103C8T6 is a high-performance 32-bit MCU. The GD32F103C8T6 features an ARM Cortex-M3 core. For industrial control, GD32F103C8T6 is a perfect choice. The GD32F103C8T6 runs at up to 108MHz. We recommend GD32F103C8T6 for motor drives. Choosing GD32F103C8T6 ensures a stable and reliable supply.

GD32F103C8T6 Product Overview

The GD32F103C8T6 is a value-line 32-bit general-purpose microcontroller from GigaDevice, based on the ARM Cortex-M3 core, in an LQFP-48 package (7×7mm). Running at up to 108MHz, the GD32F103C8T6 features 64KB Flash and 20KB SRAM. As a classic model in the GD32F103 series, the GD32F103C8T6 offers exceptional cost-performance and is widely used in industrial control, motor drives, consumer electronics, IoT, and smart home applications. The GD32F103C8T6 is pin-compatible with the STM32F103C8T6 and is a mainstream choice for domestic substitution.

GD32F103C8T6 Core Features

The GD32F103C8T6 is built on the ARM Cortex-M3 32-bit RISC core, running at up to 108MHz with zero-wait-state Flash access for maximum efficiency. Compared to similar products (e.g., STM32F103 at 72MHz), the clock speed of the GD32F103C8T6 is 50% higher. The GD32F103C8T6 offers 64KB Flash and 20KB SRAM.

The GD32F103C8T6 provides 37 I/O ports. Analog peripherals on the GD32F103C8T6 include three 12-bit ADCs (supporting up to 10 channels) and two 12-bit DACs.

Timer resources on the GD32F103C8T6 are abundant, featuring up to ten 16-bit general-purpose timers, two basic timers, and two PWM advanced control timers. Communication interfaces on the GD32F103C8T6 include up to three SPIs, two I2Cs, three USARTs, two UARTs, two I2Ss, one USB 2.0 FS, one CAN, and one SDIO.

The GD32F103C8T6 operates from 2.6V to 3.6V, over a temperature range of -40℃ to +85℃. Package of the GD32F103C8T6 is LQFP-48 (7×7mm).

GD32F103C8T6 Applications

GD32F103C8T6 Industrial Control & Automation: PLCs, inverters, motor drives, power monitoring and alarm systems

GD32F103C8T6 Motor Control & Drives: BLDC motor control, servo drives, power tools

GD32F103C8T6 Consumer Electronics & IoT: Smart home, POS terminals, handheld devices

GD32F103C8T6 Automotive Electronics: In-vehicle GPS, video intercom

GD32F103C8T6 PC Peripherals & Communication: Keyboards, mice, USB devices

GD32F103C8T6 Key Advantages

As a representative of domestic cost-effective MCUs, the GD32F103C8T6 is one of the mainstream alternatives to the STM32F103C8T6. The GD32F103C8T6 is fully pin-compatible with the STM32F103C8T6, allowing direct replacement of existing hardware designs.

GD32F103C8T6 108MHz Clock Speed for Superior Performance: Based on the ARM Cortex-M3 core running at up to 108MHz, the GD32F103C8T6 delivers 50% higher performance compared to similar products (72MHz), providing powerful computing capability for industrial control and real-time applications.

GD32F103C8T6 Rich Peripherals for Flexible Adaptation: Integrated 3×12-bit ADCs, 2×12-bit DACs, up to ten 16-bit timers, and a wide range of communication interfaces including SPI, I2C, USART, CAN, and USB, meeting diverse embedded application requirements.

GD32F103C8T6 Mature Ecosystem for Rapid Development: Supports mainstream IDEs including Keil, IAR, and GCC, with high software compatibility with the STM32F103 series and minimal code migration effort. GigaDevice provides complete datasheets, user manuals, and hardware development guides.

GD32F103C8T6 Domestic Supply with Stable Availability: As an original GigaDevice product, the GD32F103C8T6 offers stable supply and a mature development ecosystem, making it a preferred choice for domestic substitution.

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FAQ

1. What is GD32F103C8T6?

GD32F103C8T6 is a 32-bit general-purpose microcontroller (MCU) from GigaDevice, based on the ARM® Cortex®-M3 core. It belongs to the GD32F103 value-line series and has gained wide adoption in embedded system designs due to its exceptional cost-effectiveness, rich peripheral resources, and high processing efficiency.

2. What are the key specifications of GD32F103C8T6?

• Core: ARM Cortex-M3, up to 108MHz

• Memory: 64KB Flash + 20KB SRAM

• Operating Voltage: 2.6V ~ 3.6V

• I/Os: 37 GPIO pins

• ADC: 12-bit ADC

• Temperature: -40°C ~ +85°C (industrial grade)

• Package: LQFP-48 (7×7mm)

3. What package does GD32F103C8T6 use?

It uses an LQFP-48 package, measuring 7mm × 7mm. Pin pitch is 0.50mm with a height of 1.60mm. The device is surface-mount type (SMD) and RoHS compliant.

4. What applications is GD32F103C8T6 suitable for?

It is widely used in industrial control, motor drives, power monitoring and alarm systems, consumer and handheld devices, POS terminals, automotive GPS, video intercoms, and PC peripherals. Typical projects include intelligent robot control systems, bedridden patient monitoring systems, micro thermal printers, dual-frequency card readers, and remote conductivity detection systems.

5. What development tools support GD32F103C8T6?

It supports mainstream embedded development tools including Keil MDK and IAR Embedded Workbench. Debuggers supported include J-Link, ST-Link, and GD-Link. Complete datasheets, user manuals, and hardware development guides are available on the GigaDevice website.

6. What is the operating temperature range of GD32F103C8T6?

The operating temperature range is -40°C to +85°C. The storage temperature range is -55°C to +150°C.

7. What are the key features of GD32F103C8T6?

• High performance: Cortex-M3 core @108MHz, 50% faster than comparable market alternatives

• Rich peripherals: 3 general-purpose timers, 1 advanced timer, 2 watchdogs, 1 RTC

• Multiple communication interfaces: 2×I2C, 2×SPI, 3×USART, 1×USB 2.0 FS, 1×CAN

• Low power: Supports Sleep, Stop, and Standby power-saving modes

8. What peripheral interfaces does GD32F103C8T6 support?

It supports 2×I2C, 2×SPI, 3×USART, 2×UART, 2×I2S, 1×USB 2.0 FS, 1×CAN, and 1×SDIO. Analog peripherals include 12-bit ADC and 12-bit DAC.

9. What is the difference between GD32F103C8T6 and STM32F103C8T6?

The two are pin-compatible (Pin-to-Pin) . Key differences include:

• Frequency: GD32 runs at 108MHz vs STM32's 72MHz (50% performance boost)

• Operating Voltage: GD32 is 2.6V ~ 3.6V vs STM32's 2.0V ~ 3.6V

• Software Migration: Register addresses and architecture are largely identical, but clock configuration and Flash timing differences require attention

10. What are the design considerations when using GD32F103C8T6?

• Clock Configuration: When migrating from STM32, reconfigure the RCC clock for 108MHz operation

• Flash Operations: Flash erase/write timing differs from STM32 — Bootloaders and EEPROM emulation require validation

• GPIO Toggle Speed: Up to 108MHz (vs STM32's 50MHz) — pay attention to signal integrity at high frequencies

• Debug Interface: Supports both SWD and JTAG debug interfaces

• Power Decoupling: Place appropriate decoupling capacitors near VDD pins for stable power delivery