CH32V203F6P6 TSSOP20 144MHZ RISC-V industrial-grade microcontroller

SKU: O6-8-1
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EGP 65.000
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CH32V203F6P6 TSSOP20 144MHZ RISC-V industrial-grade microcontroller Arduino IDE Support


The CH32V203 is an industrial-grade microcontroller (MCU) designed for general-purpose use, with low power consumption and enhanced performance. It is based on a 32-bit RISC-V core, supports the RV32IMAC instruction set, and can operate at clock frequencies of up to 144MHz. The MCU’s power consumption is highly efficient, reaching as low as 45uA per MHz. Additionally, the CH32V203 integrates a USB interface with two channels, enabling both USB Host and USB Device functionalities. It also provides a CAN interface (2.0B active) with one channel, up to two OPA channels, four UARTs, two I²Cs, a 12-bit ADC, a 10-channel TouchKey, and various other peripheral resources.


  • 32-bit RISC-V4B processor
  • Up to 144MHz system clock frequency
  • Single-cycle multiplication and hardware division
  • Up to 20KB SRAM, 64KB Flash
  • Supply voltage: 2.5V/3.3V, GPIO unit is supplied independently
  • Multiple low-power modes: sleep/stop/standby
  • Down to 44.65uA/MHz in Run mode
  • Down to 17.90uA/MHz in Sleep mode
  • Power-on/power-down reset (POR/PDR), programmable voltage detector (PVD)
  • 1 x 18-channel general DMA controllers
  • 2 OPA amplifiers
  • 10-channel 12-bit ADC, 10-channel TouchKey
  • 4 timers
  • One USB2.0 full-speed host/device interface and/or one USB2.0 full-speed device interface
  • Up to 4 UARTs
  • Up to ne CAN interface (2.0B active)
  • Up to 2 I²C interfaces, up to 2 SPI interfaces
  • Up to 37 I/O ports, can be mapped to 16 external interrupts
  • Up to one CRC calculation unit, 96-bit unique ID
  • Serial 2-wire debug interface

Software Development Tools

MounRiver Studio IDE

The Eclipse-based closed-source MounRiver Studio IDE is the official development environment provided by WCH. It supports Windows, Linux, and Mac. MounRiver Studio can be downloaded for free.

Open-Source GCC Toolchain

You can download a complete toolchain (GCC and OpenOCD) for Linux and Mac from the MounRiver Studio website. However, on Linux you can also install a GCC-based toolchain by running the following command:

sudo apt install build-essential libnewlib-dev gcc-riscv64-unknown-elf

Arduino IDE and PlatformIO Support

There are projects around to make the CH32V203 compatible with the Arduino IDE (arduino_core_ch32) and PlatformIO (platform-ch32v).

References, Links and Notes

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