The GigaDevice GD32VF103 MCU product series are 32-bit general-purpose microcontrollers, which adopt the new Bumblebee processor core based on the open source RISC-V instruction set architecture. It provides a processing frequency of 108MHz, 16KB to 128KB of on-chip flash and 6KB to 32KB of SRAM cache, equipped with the gFlash® patented technology, with access to flash in zero wait time. The new chip is powered by 2.6V-3.6V and the I/O ports can withstand 5V voltage level. It is equipped with a big variety of Timers and among them a 16-bit advanced timer, supporting three-phase PWM complementary outputs and Hall acquisition interface for vector control. Also, it has two multi-channel DMA controllers and the newly designed interrupt controller (ECLIC) provides up to 68 external interrupts and can be nested with 16 programmable priority levels. Additionally, the new MCU is rich in peripheral resources for a wide range of mainstream applications, including up to 3 USART, 2 UART, 3 SPI, 2 I2C, 2 I2S, 2 CAN2.0B, 1 USB 2.0 FS OTG and an External Bus Expansion Controller (EXMC). The new GD32VF103 series RISC-V MCU provides a cost-effective and innovative choice, whilst entering the mainstream market with balanced processing performance and system resources. The new products are available in 14 models, including QFN36, LQFP48, LQFP64, and LQFP100, and are fully compatible with existing GD32 MCU’s in software development and pin packaging.