CH32L103C8T6
WCH · CH32L103 Series
Overview
CH32L103C8T6 is a WCH-bit RISC-V MCU from 32, built on the WCH in-house QingKe V4C core (RV32IMAC), with a maximum clock of 96 MHz, 20 KB of on-chip SRAM, and 64 KB KB of Flash. Typical active power is about 49 µA/MHz.
Core and memory
| Vendor | WCH（Chinese mainland） |
|---|---|
| IP brand / origin | WCH in-house（Chinese mainland） |
| Core | QingKe V4C |
| ISA / bit width | RV32IMAC · 32 bit |
| Max clock | 96 MHz |
| SRAM | 20 KB |
| On-chip Flash | 64 KB |
Power and electrical
Conditions and notes: The vendor or source notes are in Chinese in the original DS V2.1 表3-6/3-8-1: VDD=3.3V, 25°C, HSI+PLL 96MHz 外设全关 4.70mA → 49µA/MHz（全开 7.46mA）; Stop 4.08µA（STOP mode4，LDO 低功耗）/23.88µA/34.63µA; Standby 0.37µA（RAM/LSI/LSE/RTC/IWDG 全关）、0.59µA（RAM 保持）
| Supply voltage | 1.8–3.6 V |
|---|---|
| Operating temperature | -40 ℃ ~ 85 ℃ |
Peripherals and interfaces
| UART / USART | 4 way |
|---|---|
| SPI | 2 way |
| I²C | 2 way |
| CAN / CAN FD | 1 way |
| USB Full-Speed | 1 way |
| ISO 7816 | 1 way |
| Op-amp | 1 way |
| Comparator | 3 way |
| Touch | 10 way |
| DMA | 8 way |
| ADC | 10 channels · 12 bit |
| Other | The vendor or source notes are in Chinese in the original LPTIM 低功耗定时器；USB2.0 FS 主机+设备 + USB PD/Type-C；部分型号支持 CAN FD；12-bit ADC（10 外部+3 内部）；1x16-bit 高级 + 2x16-bit 通用 + 1x32-bit 通用定时器 |
Sources and notes
Confidence:High (official datasheet) · Last verified 2026-11-04
The vendor or source notes are in Chinese in the original 同系列 K8U6=QFN32/31 GPIO、K8U7=QFN32/-40~105°C、G8R6=QSOP28、F8U6=QFN20、F8P6=TSSOP20。C8T6/K8U6 支持 CAN FD，G8R6/F8U6/F8P6 仅 CAN 2.0B。CH32M103G8R6 = L103 + 24V 三相 P+N 预驱。2023-08-04 发布。