WCH(南京沁恒)

CH340是一个USB总线的转接芯片，实现USB转串口或者USB转打印口。在串口方式下，CH340提供常用的MODEM联络信号，用于为计算机扩展异步串口，或者将普通的串口设备直接升级到USB总线。

USB2.0芯片，CH340是一个USB总线的转接芯片，实现USB转串口或者USB转打印口。在串口方式下，CH340提供常用的MODEM联络信号，用于为计算机扩展异步串口，或者将普通的串口设备直接升级到USB总线。

4 端口 USB HUB 控制器芯片

CH32L103 series is an industrial-grade low-power general-purpose microcontroller based on QingKe RISC-V core. CH32L103 built-in USB and PD PHY, support PDUSB, including USB Host and USB Device functions, USB PD and Type-C fast charging function, built-in low-power timer, provides 1 OPA, multiple groups of CMPs, 4 USARTs, 2 I2C, 2 SPIs, 1 CAN, multi-group timers, 12-bit ADC, 10-channel Touchkey, etc.

CH32M103 is an industrial-grade motor microcontroller designed based on QingKe RISC-V core.CH32M103 has built-in 24V 3-phase P+N gate drive and high-voltage LDOs, built-in USB and PD PHY, support for PDUSB, including USB Host and USB Device functions, USB PD and Type-C fast charging functions, built-in low-power timer, provides a set of OPAs, 2 sets of CMPs, 4 sets of USART, 2×I2C interfaces, 1 SPI interface, 1 CAN interface, multi-group timer, 12-bit ADC, 10-channel touch-key and other rich peripheral resources.

The CH32V002 is an industrial-grade general-purpose microcontroller based on the QingKe RISC-V core, supporting a 48MHz system clock frequency. It features wide voltage operation, low-power consumption, and single-wire debugging. Its pins and functionality are compatible with the CH32V003. The CH32V002 integrates one 12-bit ADC with a sampling rate up to 3Msps. It provides seven DMA controllers, multiple timer groups, and rich peripheral resources including USARTs, I2C, and SPI interfaces.