The GD32F303xB is a mainstream 32-bit general-purpose microcontroller from GigaDevice built on the Arm Cortex-M4 core with DSP instructions and floating-point support, running at up to 120 MHz with zero-wait-state flash access. It integrates up to 128 KB flash and 32 KB SRAM with three 12-bit 2.6 MSPS ADCs, two 12-bit DACs, advanced and general-purpose timers, and a broad communication set including SPI, I2C, USART/UART, I2S, USB device and CAN. The family targets industrial control, motor drives, human-machine interfaces, consumer equipment, security systems, POS and IoT devices.
Highlights
- Arm Cortex-M4 core with DSP and FPU running at up to 120 MHz
- Up to 128 KB on-chip flash with zero wait states and 32 KB SRAM
- Three 12-bit 2.6 MSPS ADCs and two 12-bit DACs on chip
- Up to three SPI, two I2C, three USART, two UART, two I2S, USBD and CAN interfaces
- Four general 16-bit timers plus two advanced PWM and two basic timers
- 2.6 V to 3.6 V supply and -40 C to +85 C grade 6 temperature range
Technical parameters
Core
| Processor core | Arm Cortex-M4 32-bit RISC with DSP and FPU |
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| Maximum operating frequency | 120 MHz |
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| Flash access wait states at maximum frequency | Zero wait states |
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| Memory protection unit (MPU) | Yes |
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Memory
| On-chip flash memory | Up to 128 KB |
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| On-chip SRAM | Up to 32 KB |
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Electrical
| Supply voltage range | 2.6 V to 3.6 V |
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| Operating temperature range (grade 6) | -40 C to +85 C |
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| Power saving modes | Multiple sleep, deep-sleep and standby modes |
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Peripherals
| Analog-to-digital converters | Up to 3 x 12-bit, 2.6 MSPS |
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| Digital-to-analog converters | 2 x 12-bit |
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| General-purpose 16-bit timers | Up to 4 |
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| Advanced 16-bit PWM timers | 2 |
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| Basic 16-bit timers | 2 |
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| SPI interfaces | Up to 3 |
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| I2C interfaces | Up to 2 |
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| USART interfaces | Up to 3 |
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| UART interfaces | Up to 2 |
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| I2S interfaces | Up to 2 |
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| USB device (USBD) | 1 |
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| CAN interface | 1 |
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| Peripheral buses | Two APB buses |
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Package
| Package options | LQFP100, LQFP64, LQFP48, QFN48 |
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| Real-time clock (RTC) | Yes |
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Reliability
| Device grade | Grade 6, -40 C to +85 C |
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Applications
- Industrial control and automation
- Motor drives and motor control
- Human machine interface (HMI)
- Consumer and handheld equipment
- Security and alarm systems
- Point-of-sale (POS) terminals
- IoT and connected devices
- Automotive navigation systems
Manufacturer
GigaDevice Semiconductor Inc., Beijing · https://www.gigadevice.com
GigaDevice Semiconductor Inc. (兆易创新) is a Beijing-based fabless semiconductor company known for SPI NOR and NAND flash memory, the GD32 Arm Cortex-M microcontroller family, touch and fingerprint sensors, and analog products. Its GD32 MCUs are marketed for industrial control, motor drives, consumer and handheld equipment, human-machine interfaces, IoT, computing and automotive applications. The official contact page lists regional sales inquiry addresses including emeainquiry@gigadevice.com and a Beijing switchboard at +86-10-82881666.
Sources
- https://www.gigadevice.com.cn/Public/Uploads/uploadfile/files/20240403/GD32F303xB_Datasheet_Rev1.0.pdf
- https://www.gigadevice.com/product/mcu/main-stream-mcus/gd32f30x-series/gd32f303