CH32V103C8T6
WCH · CH32V103 Series
Overview
CH32V103C8T6 is a WCH-bit RISC-V MCU from 32, built on the WCH in-house QingKe V3A core (RV32IMAC), with a maximum clock of 80 MHz, 20 KB of on-chip SRAM, and 64 KB KB of Flash. Typical active power is about 123 µA/MHz.
Core and memory
| Vendor | WCH（Chinese mainland） |
|---|---|
| IP brand / origin | WCH in-house（Chinese mainland） |
| Core | QingKe V3A |
| ISA / bit width | RV32IMAC · 32 bit |
| Max clock | 80 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 V1.2 表3-6/3-8/3-16: VDD=3.3V/25°C, 外部时钟 72MHz 外设全关 8.88mA → 123µA/MHz（全开 13.56mA）; HSI 最高 64MHz（7.63mA 全关 → 119µA/MHz）; Stop 1.6µA（稳压器低功耗、LSI 关）/455µA（稳压器运行）; Standby 1.6µA; 唤醒 Sleep 5.8µs / Stop 253µs / Standby 340µs
| Supply voltage | 2.7–5.5 V |
|---|---|
| Operating temperature | -40 ℃ ~ 85 ℃ |
| Wake-up time | 5.8 µs |
Peripherals and interfaces
| UART / USART | 3 way |
|---|---|
| SPI | 2 way |
| I²C | 2 way |
| USB Full-Speed | 1 way |
| ISO 7816 | 1 way |
| Touch | 16 way |
| DMA | 7 way |
| ADC | 16 channels · 12 bit |
| Other | The vendor or source notes are in Chinese in the original 1x16-bit 高级 + 3x16-bit 通用定时器, 2x看门狗, 64-bit SysTick; USART 支持 ISO7816/LIN/IrDA; USB2.0 FS 主机+设备 |
Sources and notes
Confidence:High (official datasheet) · Last verified 2026-11-04
The vendor or source notes are in Chinese in the original 选型表标注 CPU 典型 72MHz、最高 80MHz（DS 特性页写 up to 80MHz），本条目取 80。同系列 C6T6=32K/10K、C8U6=QFN48、R8T6=64pin/51 IO。