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CH32V003 is an ultra-cheap RISC-V MCU with 2KB SRAM, 16KB flash, and up to 18 GPIOs that sells for under $0.10

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32-bit general-purpose RISC-V MCU-CH32V003

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Overview

CH32V003 series is based on QingKe RISC-V2A core design of industrial-grade general-purpose microcontroller, support 48MHz system main frequency, with wide voltage, 1-wire serial debug interface, low-power consumption, ultra-small package, etc. CH32V003 series built-in a group of DMA controller, a group of 10-bit ADC, a group of op-amp comparators, multiple timers and standard communication interfaces USART, I2C, SPI, etc.

System Block Diagram

frame

Features

  • QingKe 32-bit RISC-V2A processor, supporting 2 levels of interrupt nesting
  • Maximum 48MHz system main frequency
  • 2KB SRAM, 16KB Flash
  • Power supply voltage: 3.3/5V
  • Multiple low-power modes: Sleep, Standby
  • Power on/off reset, programmable voltage detector
  • 1 group of 1-channel general-purpose DMA controller
  • 1 group of op-amp comparator
  • 1 group of 10-bit ADC
  • 1×16-bit advanced-control timer, 1×16-bit general-purpose timer
  • 2 WDOG, 1×32-bit SysTick
  • 1 USART interface, 1 group of I2C interface, 1 group of SPI interface
  • 18 I/O ports, mapping an external interrupt
  • 64-bit chip unique ID
  • 1-wire serial debug interface (SDI)
  • Package: TSSOP20, QFN20, SOP16, SOP8

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CH32V003 is an ultra-cheap RISC-V MCU with 2KB SRAM, 16KB flash, and up to 18 GPIOs that sells for under $0.10

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