Overview
CH32L103 series is an industrial-grade low-power general-purpose microcontroller based on QingKe RISC-V core. CH32L103 built-in USB and PD PHY, support PDUSB, including USB Host and USB Device functions, USB PD and Type-C fast charging function, built-in low-power timer, provides 1 OPA, multiple groups of CMPs, 4 USARTs, 2 I2C, 2 SPIs, 1 CAN, multi-group timers, 12-bit ADC, 10-channel Touchkey, etc.
System Block Diagram
Features
- RISC-V4C processor, up to 96MHz system main frequency
- Support single-cycle multiplication and hardware division
- 20KB SRAM, 62KB Flash
- Multiple low-power modes: Sleep/Stop/Standby
- Power-on/power-off reset, programmable voltage monitor
- 8-channel general-purpose DMA controller
- 1 group of OPA/PGA/CMP
- 3 groups of analog CMP
- 10 external 12-bit ADC conversion channels
- 1 16-bit low-power timer
- 1 16-bit advanced-control timer
- 2 16-bit general-purpose timers
- 1 32-bit general-purpose timer
- 2 Watchdog timers (IWDG and WWDG)
- 1 SysTick
- 4 groups of USART: supprt LIN and ISO7816
- 2 I2C interface: support SMBus/PMBus
- 2 SPI interface
- 1 CANFD interface (2.0B active)
- USB2.0 full-speed Controller and PHY
- USB PD and Type C controller and PHY
- Fast GPIO port, 16 external interrupts
- 96-bit chip unique ID
- 2-wire serial debug interface SDI
Selection Guide
Development Material
- Product manual: CH32L103DS0.PDF, CH32L103RM.PDF
- Integrated Development Environment (IDE): MounRiver Studio(MRS)