GD32F103TBU6 is an ultra-compact 32-bit MCU. The GD32F103TBU6 features a Cortex-M3 core. For space-constrained designs, GD32F103TBU6 is the perfect choice. The GD32F103TBU6 offers 72MHz performance. We recommend GD32F103TBU6 for wearables. Choosing GD32F103TBU6 ensures a tiny PCB footprint.
GD32F103TBU6 Product Overview
The GD32F103TBU6 is a mainstream 32-bit general-purpose microcontroller from GigaDevice, based on the ARM Cortex-M3 core, in an ultra-compact QFN-36-EP package (6×6mm with exposed pad). Running at up to 72MHz, the GD32F103TBU6 features 64KB Flash and 8KB SRAM. As an ultra-small package variant of the GD32F103 series, the GD32F103TBU6 offers exceptional cost-performance and an extremely compact footprint, making the GD32F103TBU6 suitable for industrial control, motor drives, consumer electronics, and IoT applications where space is constrained.
GD32F103TBU6 Core Features
GD32F103TBU6 Cortex-M3 Core with 72MHz High Speed: Based on the ARM Cortex-M3 32-bit RISC core running at up to 72MHz with zero-wait-state Flash access.
GD32F103TBU6 64KB Flash + 8KB SRAM: 64KB embedded Flash and 8KB SRAM for code and data storage.
GD32F103TBU6 Up to 26 GPIOs: QFN-36 package provides 26 configurable I/O ports (including 2x 5V tolerant I/Os).
GD32F103TBU6 High-Precision Analog Peripherals: 2×12-bit ADCs (10 channels) and 1×DAC.
GD32F103TBU6 Rich Communication Interfaces: 2×USART, 2×SPI, 2×I2C, 1×I2S.
GD32F103TBU6 Timer Resources: 3×16-bit general-purpose timers, 1×16-bit advanced timer (6-channel PWM), and 1×16-bit basic timer.
GD32F103TBU6 Wide Operating Voltage & Industrial Temperature: 2.6V~3.6V, -40℃ to +85℃.
GD32F103TBU6 Low Power Design: Sleep, deep sleep, and standby modes.
GD32F103TBU6 QFN-36-EP Ultra-Compact Package: QFN-36-EP package (6×6mm with exposed pad) – the smallest package in the GD32F103 series.
GD32F103TBU6 Applications
GD32F103TBU6 Industrial Control & Automation: Variable-frequency drives, motor control, industrial control boards
GD32F103TBU6 Motor Control & Drives: BLDC motor control, PWM motor drives
GD32F103TBU6 Consumer Electronics & Smart Home: Smart appliances, handheld devices, HMI
GD32F103TBU6 IoT & Embedded Systems: IoT nodes, sensor data acquisition
GD32F103TBU6 Wearable Devices: Smartwatches, health monitors
GD32F103TBU6 Power Management: Power monitoring, battery management systems
GD32F103TBU6 Key Advantages
GD32F103TBU6 Domestic Cost-Effective MCU, Mainstream STM32 Alternative: A mainstream domestic alternative to the STM32F103T8U6. Pin-compatible for direct hardware replacement.
GD32F103TBU6 72MHz Cortex-M3 Core for Superior Performance: Based on the ARM Cortex-M3 core running at up to 72MHz.
GD32F103TBU6 QFN-36-EP Ultra-Compact Package Saves Maximum PCB Space: QFN-36-EP package (6×6mm) is the smallest in the GD32F103 series, providing 26 I/Os while minimizing PCB area. The exposed pad enhances thermal dissipation.
GD32F103TBU6 Rich Peripherals for Flexible Adaptation: 2×12-bit ADCs, DAC, USART, SPI, I2C, I2S, and multiple timers.
GD32F103TBU6 Mature Ecosystem for Rapid Development: Pin-compatible with STM32F103 series. Complete datasheets and development guides from GigaDevice. Supports Keil, IAR, GCC.
GD32F103TBU6 Domestic Supply with Stable Availability: As an original GigaDevice product, offers stable supply and a mature development ecosystem.
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FAQ
1. What is GD32F103TBU6？
GD32F103TBU6 is a 32-bit general-purpose microcontroller (MCU) from GigaDevice, based on the ARM® Cortex®-M3 core. It belongs to the GD32F103 mainstream series and comes in an ultra-compact QFN-36 package.
2. What are the key specifications of GD32F103TBU6？
Core: ARM Cortex-M3, up to 108MHz
Memory: 128KB Flash + 20KB SRAM
Operating Voltage: 2.6V ~ 3.6V
I/Os: 27 GPIO pins
ADC: 2×12-bit
DAC: 2×12-bit
Temperature: -40°C ~ +85°C (industrial grade)
Package: QFN-36-EP (6×6mm)
3. What package does GD32F103TBU6 use？
It uses a QFN-36-EP (6×6mm) package with an exposed pad. The ultra-compact size makes it ideal for space-constrained designs.
4. What applications is GD32F103TBU6 suitable for？
It is widely used in industrial control, motor drives, portable devices, consumer electronics, smart home, IoT terminals, and wearable devices. Its QFN package is particularly suitable for compact products with strict PCB space requirements.
5. What development tools support GD32F103TBU6？
It supports mainstream development tools including Keil MDK, IAR Embedded Workbench, and GCC. GigaDevice provides the GD32F10x standard firmware library. Debuggers such as J-Link and GD-Link are supported.
6. What is the operating temperature range of GD32F103TBU6？
The operating temperature range is -40°C to +85°C. This industrial-grade device is suitable for harsh environments.
7. What are the key features of GD32F103TBU6？
High performance: Cortex-M3 core @108MHz
Large memory: 128KB Flash + 20KB SRAM
Communication interfaces: 2×USART, 2×SPI, 2×I2C, 1×USB 2.0 FS, 1×CAN
High-precision analog: 2×12-bit ADC + 2×12-bit DAC
Low power: Multiple power-saving modes
8. What peripheral interfaces does GD32F103TBU6 support？
Communication: 2×USART, 2×SPI, 2×I2C, 1×USB 2.0 FS, 1×CAN
Analog: 2×12-bit ADC (10 channels) and 2×12-bit DAC
Timers: 3×16-bit general-purpose timers, 1×advanced PWM timer
GPIO: 27
9. What are the alternative models for GD32F103TBU6？
Same series: GD32F103C8T6 (LQFP-48, more I/Os), GD32F103RBT6 (LQFP-64)
PIN-to-PIN compatible: STM32F103TBU6 (direct hardware replacement, software migration required)
Small package alternative: GD32F103TBU6 is the QFN-36 representative in this series
10. What are the design considerations when using GD32F103TBU6？
Package: QFN-36-EP (6×6mm) is an ultra-compact package — reflow soldering is recommended, hand soldering is difficult
Exposed Pad (EP) : The exposed pad on the bottom should be grounded for improved thermal and electrical performance
Debug interface: Supports SWD debug interface
Power decoupling: Place 100nF decoupling capacitors near VDD pins