CH32V203C8T6/L0FP-48

RISC-V core 32-bit microcontroller -MCU

Product introduction

           The CH32V series is an industrial-grade general-purpose microcontroller designed based on the 32-bit RISC-V of Qingke. The entire series of products incorporate designs such as hardware stack areas and fast interrupt entry points, significantly enhancing the interrupt response speed compared to the standard. CH32V203 is an industrial-grade enhanced low-power general-purpose microcontroller based on a 32-bit RISC-V core. It features high performance and supports zero-wait operation at a 144MHz main frequency. Equipped with a V48 core, its power consumption during operation and sleep is significantly reduced compared to the previous year. The CH32V203 series integrates dual USB interfaces, supporting both USB Host and USB Device functions. It features one CAN interface (2.0B active), dual OPA operational amplifiers, four USArts, dual I² Cs, a 12-bit ADC, and ten TouchKeys, among other rich peripheral resources.

Product features

      Core

- Qingke 32-bit RISC-V core, with multiple instruction set combinations

- Fast programmable interrupt controller + hardware interrupt stack

- Branch prediction, conflict handling mechanism

- Single-cycle multiplication, hardware division

- The system's main frequency is 144MHz

     Memory

- It can be equipped with up to 64KB volatile data storage area SRAM

- Can be equipped with 224KB program storage area CodeFlash(zero-wait application area + non-zero-wait data area)

- 28KB system BootLoader storage area

- 128B system non-volatile configuration information storage area

- 128B User-defined information storage area

      Power management and low power consumption

- Rated system power supply V_DD :3.3V

- GPIO unit independent power supply V_IO rated :3.3V

- Low-power modes: Sleep, stop, standby

- V_BAT  The power supply is independent, providing power to the RTC and the backup register

      System clock, reset

- It is equipped with a factory-calibrated 8MHz RC oscillator

- It is equipped with a 40KHz RC oscillator

- Embedded PLL, with an optional CPU clock of up to 144MHZ

- External support for high-speed oscillators ranging from 3 to 25MHz

- Externally supports a 32.768KHz low-speed oscillator

- Power on/off reset, programmable voltage monitor

      Real-time clock RTC: 32-bit independent timer

      One set of 8-channel general-purpose DMA controllers

- 8 channels, supporting circular buffer management

- Supports TIMx/ADC/USART/I²C/SPI

      Two sets of operational amplifiers and comparators: connect ADC and TIMx

      Two groups of 12-bit analog-to-digital conversion ADCs:

- Analog input range : V_SSA ~ V_DDA

- 16 external signal channels +2 internal signal channels

- On-chip temperature sensor

- Dual ADC conversion mode

      Detection of 16 TouchKey channels

      Multiple sets of timers

- One 16-bit advanced timer, adding dead zone control and emergency braking, providing PWM complementary output for motor control

- Three 16-bit general-purpose timers, providing input capture/output comparison /PWM/ pulse counting and incremental encoder inputs

- One 32-bit general-purpose timer (applicable to CH32V203RBx)

- Two watchdog timers (standalone and windowed types)

- System time base timer: 64-bit counter

      Multiple communication interfaces

- Four USART interfaces

- Two I²C interfaces (supporting SMBus/PMBus)

- Two SPI interfaces

- USB2.0 full-speed device interface (full speed and low speed)

- USB2.0 full-speed host/device interface

- One group of CAN interfaces (2.0B active)

      Fast GPIO port

- 37 I/O ports, image 16 external interrupts

      Security features :CRC computation unit, 96-bit chip only -ID

      Debugging mode: Serial 2-wire debugging interface

Product specification

      The CH32V203 series is a 32-bit RISC core MCU designed based on the RISC-V instruction architecture, operating at a frequency of 144MHz, with built-in high-speed memory. In the system structure, multiple buses work synchronously, providing rich peripheral functions and enhanced I/O ports. This series of products is equipped with two 12-bit ADC modules, multiple sets of timers, multi-channel touch key capacitance detection (TKey), and other functions. It also includes standard and dedicated communication interfaces :I²C, SPI, USART, CAN controller, USB2.0 full-speed host/device controller, USB2.0 full-speed device controller, etc.

       The rated working voltage of the product is 3.3V, and the working temperature range is -40℃ to 85℃. It is of industrial grade. Supports multiple power-saving working modes to meet the low-power application requirements of the product. Among the series of products, each model varies in terms of resource allocation, the number of peripheral devices, and peripheral device functions. Choose according to your needs.

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