CH32V205VCT6
WCH · CH32V205 Series
Overview
CH32V205VCT6 is a WCH-bit RISC-V MCU from 32, built on the WCH in-house QingKe V3B core (RV32ICBM-X), with a maximum clock of 192 MHz, 32 KB of on-chip SRAM, and 256 KB KB of Flash. Typical active power is about 66 µA/MHz.
Core and memory
| Vendor | WCH（Chinese mainland） |
|---|---|
| IP brand / origin | WCH in-house（Chinese mainland） |
| Core | QingKe V3B |
| ISA / bit width | RV32ICBM-X · 32 bit |
| Max clock | 192 MHz |
| SRAM | 32 KB |
| On-chip Flash | 256 KB |
Power and electrical
Conditions and notes: The vendor or source notes are in Chinese in the original DS V1.3 表3-6/3-8-1: VDD=VDDA=VIO=3.3V, 25°C, HSI+PLL 192MHz 外设全关 12.6mA → 66µA/MHz（全开 21.4mA）; Sleep 5.1mA; Stop 10µA（FLASH 低功耗）/275µA（稳压器运行）; Standby 3.5µA（RAM 全断电、LDO_EC=1）
| Supply voltage | 1.8–3.6 V |
|---|---|
| Operating temperature | -40 ℃ ~ 85 ℃ |
Peripherals and interfaces
| UART / USART | 8 way |
|---|---|
| SPI | 2 way |
| I²C | 2 way |
| CAN / CAN FD | 1 way |
| USB Full-Speed | 1 way |
| USB High-Speed | 1 way |
| ISO 7816 | 1 way |
| Op-amp | 2 way |
| Comparator | 2 way |
| Touch | 16 way |
| DMA | 32 way |
| ADC | 16 channels · 12 bit |
| Other | The vendor or source notes are in Chinese in the original USB2.0 HS 480Mbps 内置 PHY + USB FS + USB PD/Type-C PHY（PD3.2/EPR，100W/240W）; QSPI x1, FSMC（仅 VCT6）, PIOC x1, 4Msps 12-bit ADC（16 外部+3 内部）, 2x16 通道 DMA |
Sources and notes
Confidence:High (official datasheet) · Last verified 2026-11-04
The vendor or source notes are in Chinese in the original DS 标注 40MHz 零等待，最高 192MHz 为非零等待；ISA 为官方写法 RV32ICBM-X（含 WCH 自定义扩展）。DMA 条款写 '2 sets of 16-channel'，故记 32 通道（文字有歧义）。同系列 CCT6=LQFP48/41 GPIO、RCT6=LQFP64/51 GPIO。2025-05-21 官方发布。