Nanjing Qinheng Microelectronics Co., Ltd. (WCH)
Electronics and components · Nanjing, Jiangsu
About Nanjing Qinheng Microelectronics Co., Ltd. (WCH)
Nanjing Qinheng Microelectronics, known by its WCH brand, is an integrated-circuit company based in Nanjing that specialises in interconnect chips and microcontrollers. Its official site presents the self-developed QingKe family of RISC-V MCUs, led by series such as CH32V, CH32X and CH32H, together with low-power microcontrollers offering USB and PD fast charging for motor and Type-C applications.
The catalogue includes USB 3.0 hub controllers such as the CH634, the CH585 SoC with Bluetooth LE 5.4, NFC and high-speed USB, Ethernet stack chips such as the CH394, Ethernet controllers and PHY transceivers, and motor-control MCUs with integrated gate drivers. These parts are widely used in computer peripherals, communication interfaces, consumer electronics and industrial control.
WCH publishes datasheets, tools and reference documentation on its English-language site, and its interface chips, above all its USB-to-serial converters, have become standard choices in electronic design inside and outside China. The company focuses on fabless semiconductor design, with its QingKe core technology at the centre of its microcontroller roadmap.
The catalogue includes USB 3.0 hub controllers such as the CH634, the CH585 SoC with Bluetooth LE 5.4, NFC and high-speed USB, Ethernet stack chips such as the CH394, Ethernet controllers and PHY transceivers, and motor-control MCUs with integrated gate drivers. These parts are widely used in computer peripherals, communication interfaces, consumer electronics and industrial control.
WCH publishes datasheets, tools and reference documentation on its English-language site, and its interface chips, above all its USB-to-serial converters, have become standard choices in electronic design inside and outside China. The company focuses on fabless semiconductor design, with its QingKe core technology at the centre of its microcontroller roadmap.