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The CH32V103 is a general purpose microcontroller based on the 32-bit RISC processor RISC-V3A. The CH32V103 provides clock security system, multi-level power management and general DMA controller. The CH32V103 is also equipped with abundant peripheral resources, such as single USB2.0 host/device interface, multi-channel 12-bit ADC module, multi-channel TouchKey, multiple timers, and multi-channel IIC/USART/SPI interfaces, etc.
- RISC-V3A processor, max 80MHz system clock frequency;
- Single-cycle multiplication and hardware division;
- 20KB SRAM，64KB CodeFlash;
- 2.7V to 5.5V supply voltage, supplies to GPIO simultaneously;
- Multiple low-power modes: sleep/stop/standby;
- Power-on/power-down reset (POR/PDR);
- Programmable voltage detector (PVD);
- 7-channel DMA controller;
- 16-channel TouchKey detection;
- 16-channel 12-bit ADC;
- 7 timers;
- One USB2.0 host/device interface (full-speed and low-speed);
- Two I2C interfaces (support SMBus/PMBus);
- 3 USARTs;
- 2 SPIs (Master mode and Slave mode);
- 51 I/O ports, all I/O ports can be mapped to 16 external interrupts;
- CRC calculation unit, 96-bit unique chip ID;
- Serial 2—wire debug interface (SDI);
- Packages: LQFP64M, LQFP48, QFN48. debug interface;
- Packages: LQFP64M, LQFP100.