CH32X035
Ultra-low-cost 48MHz RISC-V3A MCU with USB, optimized for simple control and HID applications
Product Overview
Description
CH32X035 is an ultra-low-cost RISC-V microcontroller designed for the most cost-sensitive applications.
With a 48MHz RISC-V3A core and USB 2.0 Full Speed device support, this MCU is ideal for simple USB HID and control applications.
The chip includes up to 32KB Flash and 10KB RAM in very compact packages, making it perfect for space and cost-constrained designs.
Product Series
CH
Primary Application
USB HID devices
Key Features
- 48MHz RISC-V3A core
- USB 2.0 Full Speed device
- Up to 32KB Flash memory
- Up to 10KB SRAM
- 12-bit ADC with 8 channels
- Basic timers and PWM
- SPI, I2C, UART interfaces
- Very compact packages
- Ultra-low cost
Specifications
| Core | QingKe RISC-V3A |
|---|---|
| Frequency | Up to 48MHz |
| Flash | Up to 32KB |
| RAM | Up to 10KB |
| USB | USB 2.0 FS Device |
| ADC | 1x 12-bit ADC (8 channels) |
| GPIO | Up to 24 |
| Timers | 3 general purpose |
| Package | QFN28, TSSOP20, SOP16 |
| Temperature Range | -40°C to +85°C |
Applications
USB HID devices
Electronic system design
Simple USB controllers
Industrial automation and control
Low-cost sensors
Sensor signal conditioning
Basic motor control
Motor drive and control systems
LED controllers
Industrial automation and control
Toys and gadgets
Electronic system design
FAE Expert Insights
"CH32X035 is the most cost-effective RISC-V MCU I've worked with. It's perfect for simple USB HID applications where cost is the primary concern. I've used it in custom USB input devices and simple control applications. The 48MHz core is sufficient for these tasks, and the USB bootloader simplifies production programming. The TSSOP20 and SOP16 packages are easy to hand-solder for prototypes. Don't expect high performance - this is a basic MCU for basic tasks - but the price is unbeatable."
Lowest-cost RISC-V MCU for simple applications
— Sarah Chen, BeiLuo