WCH CH32V307V-EVT-R1

The GH32V× series are industrial-grade general-purpose MCUs based on the Qingke 32-bit RISC-V design. All products feature a hardware stack area and fast interrupt entry, significantly improving interrupt response speed over standard RISC-V. The CH32V208x integrates the V4C core, adding memory protection and reducing hardware division cycles. The CH32V303/305/307 integrates the V4F core, adding a single-precision floating-point instruction set and an expanded hardware stack area for higher computing performance. In terms of peripheral resources: CPU frequency up to 144MHz, independent GPIO power supply, up to 8x U(S)ART, 4x motor timers, and 1x 32-bit general-purpose timer. Provides a USB2.0 high-speed interface (480Mbps) with built-in PHY transceiver, Gigabit Ethernet MAC with integrated 10M-PHY module, and Bluetooth BLE5.3 wireless support.

• Core:
  • Qingke 32-bit RISC-V core, multiple instruction set combinations
  • Fast programmable interrupt controller + hardware interrupt stack
  • Branch prediction and hazard handling mechanism
  • Single-cycle multiplication, hardware division, hardware floating-point
  • System clock frequency: 144MHz
• Memory:
  • Configurable up to 128KB volatile data storage SRAM
  • Configurable 480KB program storage CodeFlash (zero-wait application region + non-zero-wait data region)
  • 28KB system bootloader storage BootLoader
  • 128B system non-volatile configuration information storage
  • 128B user-defined information storage
• Power Management and Low Power:
  • System supply VDD rated: 3.3V
  • GPIO unit independent supply VIO rated: 3.3V
  • Low-power modes: Sleep, Stop, Standby
  • VBAT supply independently powers RTC and backup registers
• System Clock and Reset:
  • Built-in factory-calibrated 8MHz RC oscillator
  • Built-in 40kHz RC oscillator
  • Built-in PLL, selectable CPU clock up to 144MHz
  • External support for 3 ~ 25MHz high-speed oscillator
  • External support for 32.768kHz low-speed oscillator
  • Power-on/power-off reset, programmable voltage monitor
• Real-Time Clock RTC: 32-bit independent timer
  • 16 external signal + 2 internal signal channels
  • On-chip temperature sensor
  • Dual ADC conversion mode
• Multiple Timer Groups:
  • 4× 16-bit advanced timers with dead-time control and emergency brake, providing complementary PWM output for motor control
  • 3× 16-bit general-purpose timers with input capture / output compare / PWM / pulse counting and incremental encoder input
  • 1× 32-bit or 16-bit general-purpose timer
  • 2× basic timers
  • 2× watchdog timers (independent and window type)
  • System tick timer: 64-bit counter
• Multiple Communication Interfaces:

• Motor drive and application control
  • Medical and handheld devices
  • PC gaming peripherals and GPS platforms
  • Programmable controllers
  • Inverters
  • Printers
  • Scanners
  • Alarm systems
  • Video intercom
  • HVAC systems