CH32V003 Datasheet
V1.3
Overview
CH32V003 series is an industrial-grade general-purpose microcontroller designed based on QingKe RISC-V2A
core, which supports 48MHz system main frequency in the product function. The series features wide voltage,
single-wire serial debug interface, low-power consumption and ultra-small package. It provides commonly used
peripheral functions, built-in 1 group of DMA controller, 1 group of 10-bit analog-to-digital conversion ADC, 1
group of op-amp comparator, multiple timers, standard communication interfaces such as USART, I2C, SPI, etc.
The rated operating voltage of the product is 3.3V or 5V, and the operating temperature range is -40°C～85°C
industrial- grade.
Features
l Core
- QingKe 32-bit RISC-V core, RV32EC
instruction set
- Fast programmable interrupt controller +
hardware interrupt stack
- Support 2-level interrupt nesting
- Support system main frequency 48MHz
l Memory
- 2KB volatile data storage area SRAM
- 16KB program memory CodeFlash
- 1920B BootLoader
- 64B non-volatile system configuration
memory
- 64B user-defined memory
l Power management and low-power
consumption
- System power supply VDD: 3.3V or 5V
- Low-power mode: Sleep, Standby
l Clock & Reset
- Built-in factory-trimmed 24MHz RC
oscillator
- Built-in 128KHz RC oscillator
- High-speed external 4~25MHz oscillator
- Power on/down reset, programmable voltage
detector
l 1 group of 1-channel general-purpose DMA
controller
- 7 channels, support ring buffer
- Support TIMx/ADC /USART/I2C/SPI
l 1 group of OPA and comp