CH32V003F4U6
WCH · CH32V003 Series
In production
32 bit · RV32EC
Low-power data
Max clock
48MHz
SRAM
2KB
On-chip Flash
16KB
Active current
83µA/MHz
Sleep current
1700µA
Supply voltage
2.7–5.5V
Overview
CH32V003F4U6 is a WCH-bit RISC-V MCU from 32, built on the WCH in-house QingKe V2A core (RV32EC), with a maximum clock of 48 MHz, 2 KB of on-chip SRAM, and 16 KB KB of Flash. Typical active power is about 83 µA/MHz.
Core and memory
| Vendor | WCH（Chinese mainland） |
|---|---|
| IP brand / origin | WCH in-house（Chinese mainland） |
| Core | QingKe V2A |
| ISA / bit width | RV32EC · 32 bit |
| Max clock | 48 MHz |
| SRAM | 2 KB |
| On-chip Flash | 16 KB |
Power and electrical
Active current
83 µA/MHz
Sleep current
1700 µA
Standby / shutdown
7.6 µA
Conditions and notes: The vendor or source notes are in Chinese in the original 同 CH32V003F4P6（DS 表3-6-1，VDD=3.3V/25°C，HSI 48MHz 外设全关 4.0mA → 83µA/MHz）
| Supply voltage | 2.7–5.5 V |
|---|---|
| Operating temperature | -40 ℃ ~ 85 ℃ |
| Wake-up time | 30 µs |
Peripherals and interfaces
| UART / USART | 1 way |
|---|---|
| SPI | 1 way |
| I²C | 1 way |
| Op-amp | 1 way |
| DMA | 7 way |
| ADC | 8 channels · 10 bit |
| Other | The vendor or source notes are in Chinese in the original QFN20 3*3mm，与 F4P6 同 Die、同 18 GPIO |
Sources and notes
Confidence:High (official datasheet) · Last verified 2026-11-04
The vendor or source notes are in Chinese in the original CH32V003 官方封装只有 TSSOP20(F4P6)/QFN20(F4U6)/SOP16(A4M6)/SOP8(J4M6)，没有 C8T6。