Key Selection Information
| Selection Parameter | Confirmed Information |
|---|---|
| Core | 32-bit Arm Cortex-M3 |
| Maximum Frequency | 72 MHz |
| Flash Memory | 64 KB |
| SRAM | 20 KB |
| ADC | 2 × 12-bit, up to 10 channels each |
| Interfaces | 3 UART, 2 SPI, 2 I²C, USB device |
| Package | LQFP-48 |
| Temperature | -40 °C to +85 °C |
Product Overview
GD32F103C8T6 is a GigaDevice 32-bit microcontroller based on the Arm Cortex-M3 core. The exact C8T6 configuration combines a 72 MHz maximum clock, 64 KB Flash, 20 KB SRAM and the 48-pin LQFP package. This identity should be kept explicit when evaluating related GD32F103 variants because memory size and package are part of the ordering code.
The device combines general embedded-control resources with dual 12-bit ADCs, DMA, multiple serial interfaces and USB device capability. It is a practical fit for control-oriented designs that need a familiar Cortex-M3 software model and a moderate peripheral set without moving to a larger package.
Technical Specifications
| Group | Parameter | Value / Condition |
|---|---|---|
| Core | Architecture | Arm Cortex-M3 |
| Core | Maximum frequency | 72 MHz |
| Memory | Flash | 64 KB |
| Memory | SRAM | 20 KB |
| Analog | ADC | 2 × 12-bit |
| Serial | UART | 3 |
| Serial | SPI | 2 |
| Serial | I²C | 2 |
| USB | Function | USB device |
| Debug | Interfaces | JTAG / SWD |
| Package | Type | LQFP-48 |
| Operating | Temperature | -40 °C to +85 °C |
Functional Highlights
C8T6 fixes both memory and package
The 64 KB Flash capacity and LQFP-48 package should be treated as part of the exact variant, especially when firmware or PCB designs were originally built around a nearby family member.
Mixed analog and digital peripherals support compact controllers
Dual ADC resources, timers, DMA and multiple serial ports reduce the number of external interface devices required in many embedded-control boards.
Applications / Application Fit
- General embedded controllers
- Sensor acquisition and control nodes
- USB-connected control devices
- Motor or actuator controllers using timer/PWM resources
Design Considerations
Confirm the exact GD32 pin multiplexing for LQFP-48 before reusing a schematic from another Cortex-M3 MCU.
Keep firmware size within the 64 KB Flash boundary and preserve bootloader/update margin.
USB and high-speed digital interfaces still require board-level signal-integrity and ESD design.
Related Engineering Resources
- GigaDevice official product/family page — manufacturer-controlled product information and documentation.
- GD32F103C8T6 verified Datasheet PDF — identity-verified PDF hosted on HKEQGOO assets.
Alternative Candidates for Engineering Evaluation
| MPN | Manufacturer | Package |
|---|---|---|
| GD32F103CBT6 | GigaDevice | LQFP-48 |
Candidate alternative parts require engineering verification before substitution. Electrical characteristics, pinout, package, qualification, and application requirements should be verified before use.
Quality & Verification Support
Third-party inspection or testing can be arranged according to customer requirements. Testing fees are borne by the buyer. Additional verification requirements can be discussed before shipment. After an order is placed, physical product, label, packaging, and Date Code photos may be provided where appropriate.
Request a Quote
To request a quotation, provide the manufacturer part number, required quantity, destination, target Date Code if applicable, and any testing or inspection requirements.
