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CH549DS1.PDF CH549/CH548 datasheet. An 8-bit enhanced USB MCU with multiple interfaces. It provides 64K program ROM and 2K+256 RAM. It supports USB host, USB device and Type-C CC and PD. It provides 16-channel Touch-key, 16-channel ADC, 3 sets of timers, 8-channel PWM, 4-channel UART and SPI, etc. 1.8 2023-09-01
CH347DS1.PDF CH347 datasheet, 480Mbps high-speed USB to UART, I2C, SPI and JTAG, supports drivers on Windows/ Linux/ Android /macOS, used to high-speed USB to UART, USB to SPI, USB to IIC, USB to JTAG 1.3 2023-09-20
CH583DS1.PDF CH583 datasheet. An MCU based on 32-bit RISC-V instruction set integrated with BLE wireless communication. 448K ROM. 32K SRAM. 0.3uA Min current in low-power mode. It integrates 2 independent full-speed USB host/device controllers and transceiver, 12-bit ADC, touch-key detection module, RTC, power management and other peripheral resources. It provides BLE protocol stack and API. 1.8 2024-01-10
CH32L103DS0.PDF PDUSB Low Power Microcontroller CH32L103 Datasheet, L103 is a MCU based on QingKe RISC-V core, 64KB FLASH and 20K RAM, up to 96MHz, supports USB and PD and Type-C, and provides commonly used peripheral functions such as ADC, OPA, CMP, SPI, Serial port, Touch Key Detection. 1.5 2024-03-12
CH390DS1.PDF CH390 Datasheet, CH390 is an industrial-grade Ethernet controller chip with its own 10/100M Ethernet Media Access Controller (MAC) and Physical Layer (PHY), supporting CAT3, 4, 5 for 10BASE-T and CAT5, 6 for 100BASE-TX connections, supporting HP Auto-MDIX, low-power consumption design, and complying with IEEE 802.3u specification. CH390 has built-in 16K bytes SRAM, supports 3.3V or 2.5V parallel interface and SPI serial interface for compatibility with various MCUs, MPUs, DSPs and other controllers. 1.3 2023-12-20
CH213DS1.PDF Information change in the download page (Software introduction/application scope):Low voltage drop ideal diode chip CH213 datasheet,the chip has integrated modules for over-current protection, short-circuit protection, over-temperature protection, and power supply polarity protection, and is rated at 5V*0.5A. Compared to a Schottky Barrier Diode plus a self-recovery fuse, the CH213 has a significantly lower on-state voltage drop and more rapid over-current protection. 1.1 2023-10-11
CH32V003RM.PDF CH32V003 series are industrial-grade general-purpose microcontrollers designed based on 32-bit RISC-V instruction set and architecture. It adopts QingKe V2A core, RV32EC instruction set, and supports 2 levels of interrupt nesting. The series are mounted with rich peripheral interfaces and function modules. Its internal organizational structure meets the low-cost and low-power embedded application scenarios. 1.7 2024-03-11
CH32F20xDS0.PDF CH32F20x datasheet. A general-purpose microcontroller based on 32-bit Cortex-M3 core. The CH32F20X is equipped with abundant peripheral sources, such as USB2.0 host/device controller, BLE5.3, Ethernet, CAN controllers, 12-bit DAC/ADC, 8 USARTs/UARTs, motor timer, OPA, dual DMA controllers, and so on. 2.3 2022-07-18
CH32F203DS0.PDF CH32F203 datasheet,CH32F203 series is an industrial-grade enhanced small-and-medium capacity general-purpose microcontroller designed based on 32-bit ARM Cortex-M3 core with high performance and low-power consumption. CH32F203 series integrates dual USB interfaces and supports USB Host and USB Device. 2.4 2022-10-28
CH32V103DS0.PDF CH32V103 datasheet. 32-bit general microcontroller with RISC-V instruction set, has features of fast interrupt response and low power. CH32V103 provides the following abundant peripherals: USB2.0 host/slave controller, multi-channel touchkey detection (TouchKey), DMA controller, 12-bit ADC, RTC, 7 sets of timers, multiple sets of I2C/USART/SPI interfaces. CH32V103 meets the needs of various applications in motor control, sensor acquisition, medical care, consumer electronics and other markets. 1.2 2024-03-11
CH9140DS1.PDF CH9140 datasheet. BLE to UART bridge controller, supports BLE master-slave integrated mode and slave mode, can realize automatic connection or binding in BLE master-slave mode. The computer end provides BLE virtual serial port driver, compatible with common serial application program and serial port debug tools. CH9140 realizes wireless UART and UART extension, without secondary development. 1.2 2021-11-29
CH547DS1.PDF CH547/CH546 datasheet. 8-bit enhanced multi-interface USB MCU, with 64KB FlashROM, 1KB+256B RAM. The CH547/CH546 supports USB device, 12-channel ADC, 3 timers, 4 channels of PWM, 4 UARTs, SPI, etc. 1.6 2023-07-07
CH9344DS1.PDF CH9344 datasheet, USB to quad serial ports, supports up to 12Mbps baud rate and hardware flowcontrol, provides RS485 direction control and GPIO and other signal pins, which can expand UART for computer or upgrade directly common serial device or MCU to USB bus. 1.3 2021-11-18
CH395DS1.PDF CH395 datasheet. TCP/IP Ethernet protocol stack chip, integrated 10/100M MAC and PHY transceiver, built-in DHCP, ARP, ICMP, IGMP, UDP and TCP protocol firmware, supports SPI/8-bit parallel port/asynchronous serial port and up to 8 sockets, supports MCU system to connect to Ethernet. 1.4 2021-11-29
CH376DS1.PDF CH376 datasheet. Easy-to-use USB flash disk and SD card file management chip, supports host-slave USB applications, supports FAT32/FAT16/FAT12, supports SPI/8-bit parallel port/asynchronous serial port. MCU resource occupies less memory. This datasheet introduces USB flash disk and SD card file read/write and management. 1.1 2021-11-29
CH32FV2x_V3xRM.... CH32FV2x_V3xRM reference manual. A general-purpose microcontroller based on 32-bit RISC-V architecture. It features high-efficiency interrupt response, standard flash protection, hardware division and floating-point operation. It is equipped with abundant peripheral sources, such as USB2.0 host/device controller, BLE5.3, Ethernet, CAN controllers, 12-bit DAC/ADC, 8 USARTs/UARTs, motor timer, OPA, dual DMA controllers and so on. 2.2 2024-07-04
CH252DS1.PDF CH252 datasheet, CH252 is a USB Type-C cable E-Marker that supports USB Type-C 2.1 standard and USB PD 3.1 standard and can be used for various Type-C cable related applications.CH252 is shipped with a default configuration burned in and supports updating the configuration data of the finished cable via the Type-C interface. Each CH252 supports up to 5 updates of the configuration data in addition to the default configuration and has a data lock function. 1.5 2024-03-04
CH32V003DS0.PDF CH32V003 datasheet, 32-bit RISC-V core, RV32EC instruction set, with wide voltage, single-wire debug, low- power consumption, ultra-small package, etc. Provides commonly used peripheral functions, DMA, ADC, OPA, TIM, USART, I2C, SPI, etc. 1.4 2023-05-18
CH368DS1.PDF CH368 datasheet, PCI-Express to 32-bit communication interfaces chip, supports I/O port mapping, memory mapping, expansion ROM and interrupt, used for acquisition card/IO control card/communication card, etc. 1.2 2024-01-18
CH32X035DS0.PDF USB+USBPD microcontroller CH32X035 datasheet, X035 is an MCU based on QingKe RISC-V core with 64KB FLASH and 20K RAM, supporting USB and PD and type C. It provides ADC, OPA, CMP, SPI, serial port, Touchkey detection and other common peripheral functions. 1.7 2024-03-12
CH32V002DS0.PDF 16K Flash value general-purpose MCU CH32V002 datasheet. The chip is based on QingKe RISC-V core, industrial-grade design, featuring wide voltage, low-power consumption, 1-wire SDI, etc. The pins and functions are compatible with CH32V003, providing peripheral resources such as 12-bit ADC, DMA, TIM, USART, I2C, SPI, and so on. 1.0 2024-05-15
CH341DS1.PDF CH341 datasheet, USB bus converter chip with multiple communication interfaces, such as USB to serial port/parallel port/printer port/I2C interface etc. Drivers support for Windows/Linux/Android/Mac, etc. The datasheet is the description of USB to serial port and printer port. 3.3 2021-07-03
CH132DS1.PDF CH132 datasheet. A UTMI+ Low Pin Interface (ULPI) High-Speed USB PHY/Transceiver. The CH132 can transmit and receive data at high speed (480 Mbps), full speed (12 Mbps) and low speed (1.5 Mbps). It is ideal for use in MCU or FPGA with ULPI Interface. 2.1 2023-12-19
CH559DS1.PDF CH559 datasheet. Dual low/full-speed USB host/device +ADC 8-bit E8051 MCU. 64KB Flash-ROM, 6KB on-chip xRAM. Supports USB host and USB device modes. Provides dual port Root-HUB, ADC, 4 timers/PWM, 2 UARTs, 2 SPIs, etc. 1.6 2022-08-01
CH217DS1.PDF USB current limiting power distribution switch chip CH217 datasheet, the internal integration of over-current protection, over-temperature protection, under-voltage protection, adjustable current limiting threshold and other modules, for computers, USB host, USB HUB , chargers and other ports of 5V power control. 1.1 2023-10-11
CH374DS1.PDF CH374 datasheet. CH374 is a USB-HOST&DEVICE general interface chip. It supports USB host and USB device, supports 12M USB full-speed communication and 1.5M low-speed communication, supports 8-bit parallel interface or SPI interface, supports all types of USB transmission and Hub operation, etc. 3.2 2021-11-19
CH592DS1.PDF Information change in the download page (Software introduction/application scope):CH591 and CH592 datasheet, CH592 is a RISC-V MCU microcontroller with integrated BLE wireless communication. On-chip integration of 2Mbps BLE communication module, full-speed USB host and device controller and transceiver, segment LCD driver module, SPI, 4 serial ports, 12-channel ADC, TouchKey detection module and other rich peripheral resources. 1.7 2024-07-16
CH32V004DS0.PDF 32K Flash value general-purpose MCU CH32V004 datasheet. The chip is based on QingKe RISC-V core, featuring wide voltage, low-power consumption, 1-wire SDI, etc. The pins and functions are compatible with CH32V003, providing peripheral resources such as 12-bit ADC, DMA, TIM, USART, I2C, SPI, and so on. 1.0 2024-05-23
CH32V006DS0.PDF 64K Flash multi-function general-urpose MCU CH32V006 and 32K Flash enhanced general-purpose MCU CH32V005 datasheet. The chips are based on QingKe RISC-V core, industrial-grade design with wide voltage, low-power consumption, 1- and 2-wire SDI, etc. The chips have built-in OPA and provide peripheral resources such as ADC, TouchKey, DMA, TIM, USART, I2C, SPI, and so on. 1.0 2024-05-15
CH9328DS1.PDF CH9328 datasheet, serial port to USB HID keyboard, serial port to receive data, according to HID keyboard device specification, upload to computer via USB bus, no need to install driver. 1.6 2021-11-18
CH552DS1.PDF CH551/CH552 datasheet. CH551/CH552 is a low-speed/full-speed USB device and low-cost 8-bit E8051 MCU, with 16K flash+1K RAM 6-channel touch-key detection, ADC, two UARTs, unique ID, etc. CH551/CH552 supports ISP library. 1.7 2023-07-07
CH334DS0.PDF CH334/CH335 introduction. 4-port USB2.0 high-speed HUB controller. CH334/CH335 supports high-performance MTT, and supports over-current detection and port power control. It can be applied to computers, industrial computer motherboards, peripherals, embedded systems, etc. 2.0 2023-11-14
CH32V00XRM.PDF CH32V00X Series Application Manual, provides detailed information of CH32V002, CH32V004, CH32V005, CH32V006, CH32V007, CH32M007 for different memory capacities, functional resources, and packages in the series. 1.1 2024-06-25
CH567DS1.PDF CH567 datasheet. CH567 is a 32-bit MCU. The system frequency can be up to 120MHz. It provides built-in 2-channel high-speed USB host/slave controller, 4 sets of SD controllers. It provides 2 encryption algorithms, SM4 and AES, and provides 8 encryption modes. It also provides 4 UARTs, 3 sets of timers, 7 sets of PWMs and other peripherals. 1.1 2021-11-19
CH246DS1.PDF CH246 datasheet. Wireless Charging Management Chip, integrates with wireless charging transceiver module and small signal decoding circuit, can easily implement various WPC Qi wireless charging solutions in addition to some customer-defined software. 1.4 2021-11-29
CH573DS1.PDF CH573 datasheet. An MCU based on 32-bit RISC-V instruction set for BLE wireless communication. It provides 448K ROM and 18K SRAM, and the minimum power is 0.3uA. It integrates with full-speed USB host and device controller and transceiver, 12-bit ADC, touch-key detection module, RTC, power management, etc. It provides Bluetooth Low Energy protocol stack and API. 1.12 2022-06-29
CH397DS1.PDF CH397 is a highly integrated, low-power USB NIC chip with built-in QingKe RISC-V processor, high-speed USB controller and transceiver PHY compliant with USB2.1 protocol specification, and Ethernet MAC+PHY compliant with IEEE802.3 protocol specification, supporting 10M/100M network. Standard USB host interface for all kinds of desktop computers, laptops, tablets, game consoles, etc., used to extend the Ethernet interface via USB. 1.3 2023-05-11
CH557DS1.PDF CH557 datasheet. CH557 has a built-in 4-port USB Root-HUB and supports USB master-slave mode, with built-in 128 groups of RGB LED controllers, E8051 core, 8K RAM, 64K ROM. CH557 provides ADC, 2 serial ports, 2 SPIs, etc. 1.6 2022-04-29
CH568DS1.PDF CH568 datasheet. CH568 is a 32-bit MCU. The system clock frequency can be up to 120MHz. CH568 has built-in high-speed USB host-slave controller, SATA controller and 4 sets of SD controllers, provides two encryption algorithms, SM4 and AES, and supports eight encryption modes. In addition, CH568 provides abundant peripherals, such as 4 sets of UARTs, 3 sets of timers and 7 sets of PWMs, etc. 1.2 2021-12-03
CH545DS1.PDF CH545 datasheet. Multi-host multi-device enhanced E8051 MCU. The CH545 provides on-chip 4-port USB root-hub, 4-channel composite USB device controller and transceiver, and it can be used for KVM design. 1.5 2022-08-08
CH32V208DS0.PDF CH32V208 is a wireless microcontroller based on 32-bit RISC-V core, equipped with V4C core, increased memory protection function, and reduced hardware division cycle. It supports 2Mbps low-power Bluetooth BLE communication module, etc. 2.6 2023-05-18
CH454DS1.PDF CH454 datasheet. CH454 is used for display driver of 16-segment LED displays or 8 alphanumeric displays and for keyboard scan control, supports 17 segments x 7 digital tubes, 16 segments x 8 digital tubes and 8 segments x 16 digital tubes. 1.5 2021-11-19
CH317DS0.PDF CH317 datasheet, USB2.0 extender control chip, for USB more than 100 meters extension, support HUB extension, pure hardware solution, no driver installation. 2.1 2023-07-03
CH641RM.PDF The application manual for PD wireless charging microcontroller CH641, provides detailed usage information of PD, type-C, PWM, serial port, ADC, differential current sampling, QI decoding and other functional modules for user application development. 1.2 2024-03-11
CH643DS0.PDF RGB display driver microcontroller CH643 datasheet, based on the QingKe RISC-V core, supporting USB, PD , type C fast charging, 1-wire protocol, 48 PWMs, 288 RGB LEDs and providing ADC, OPA , SPI and UART, etc. 1.2 2023-06-30
CH32L103RM.PDF PDUSB Low Power Microcontroller CH32L103 Series Reference Manual. For the application development of users, the detailed use information of CH32L103 products is provided, including ADC, OPA, CMP, USB, PD and Type-C fast charging, which is suitable for different functional resources and packaged products in the series. 1.6 2024-07-04
BLE2U.PDF BLE2U manual. A BLE/UART/USB transmission module. The BLE2U implements data transmission between BLE, USB and UART. It supports BLE master-slave mode, slave mode and master mode. BLE4.2 is supported. Available PC-side USB and BLE virtual serial port driver, which is compatible with common serial applications and serial port debug tools, with no secondary development required, implementing transmission between 3 "serial ports". 1.3 2022-07-01
CH438DS1.PDF CH438 datasheet. CH438 is an 8-UART extension chip. Each UART receive/transmit has independent 128-byte FIFO. The maximum baud rate is 4Mbps. It supports hardware flow control, compatible with 16C550/16C750. It provides 8-bit parallel interface, used for MCU 8-UART extension. 1.2 2021-11-19
CH643RM.PDF Information change in the download page (Software introduction/application scope): CH643 series reference manual, developed for the user's application, provides detailed information on the use of CH643 for products with different functional resources and packages in the series. 1.7 2024-07-04
CH32V203DS0.PDF CH32V203 is an industrial-grade enhanced low-power, small-medium capacity general-purpose microcontroller designed based on 32-bit RISC-V core, equipped with V4B core, and the operating and sleeping power consumption is significantly reduced year-on-year. It supports USB Host and USB Device functions, etc. 2.7 2023-05-18
CH182DS1.PDF CH182 datasheet, CH182 is an industrial grade 10/100M Ethernet PHY transceiver with Auto-MDIX support. CH182 internally includes Physical Coding Sublayer (PCS), Physical Media Access Layer (PMA), Twisted Pair Physical Medium Dependent (TP-PMD), 10BASE-TX encoder/decoder, Twisted Pair Media Attachment Unit (TPMAU), MII and RMII interfaces, and other modules required for Ethernet Transceiver functions. 1.4 2024-07-16
CH9121DS1.PDF CH9121 datasheet. Realize transparent transmission between UART and Ethernet. It supports UART and network configuration. It has built-in PHY, and supports serial device to connect to the network. 2.2 2021-11-19
CH340DS1.PDF CH340 datasheet, USB bus converter chip which converts USB to serial port, printer port, IrDA SIR etc. Integrated clock, supports various operating systems, chip information can be customized, this datasheet is about USB to serial port and USB to Infrared Adapter SIR. 3.3 2024-01-02
CH251DS1.PDF eMarker chip CH251 datasheet, CH251 is a simplified version of the eMarker chip, single chip integrated VCONN diode and Ra resistor, support USB Type-C 2.1 standard and USB PD 3.1 standard, VBUS support high-voltage power supply, can be used for Type-C five-core cable related applications. 1.1 2024-02-29
CH452DS1.PDF CH452 datasheet. CH452 can be used for 64 LEDs or 8×8 segment digital tube drive and 64-key keyboard scanning control, simplifying the workload of MCU. 2.7 2021-11-29
CH579DS1.PDF CH579 datasheet. A microcontroller with 32-bit Cortex-M0 core for BLE wireless communication. It provides 250K ROM and 32K SRAM, and the minimum power is 0.2uA. It integrates with Ethernet controller and transceiver, full-speed USB host and device controller and transceiver, segment LCD driver module, 12-bit ADC, touch-key detection module, RTC, etc. It also provides Ethernet and Bluetooth Low Energy protocol stack and API. 2.1 2023-01-31
CH423DS1.PDF CH423 datasheet. A remote I/O expander with 2-wire serial interface, used for 16 digital tube display or I/O expansion applications through two wires. The input terminal is a two-wire interface compatible with I2C, and the output terminal is an 8-bit bidirectional input/output port and a 16-bit high-current output port. 2.2 2023-11-28
CH32X035RM.PDF Information change in the download page (Software introduction/application scope):The CH32X035 series reference manual, developed for the user's application, provides detailed information on the use of the CH32X035 products for the different functional resources and packages in the series. 1.7 2024-07-04
CH339DS1.PDF Industrial-grade 7-Port Multi-Function HUB Chip CH339 Datasheet, 7-port USB2.0 high-speed HUB chip, supports high performance MTT mode, 7 downstream ports concurrent processing, supports overcurrent detection and port power control, and at the same time has USB 100 Gigabit Ethernet, USB high speed SD card reader, USB PD and USB to SPI, USB to JTAG, USB to UART, USB to I2C interface and other functions. It can be applied to computer and industrial controller motherboards, docking stations, peripherals, embedded systems and other scenarios. 1.0 2024-03-11
CH641DS0.PDF PD wireless charging MCU datasheet, CH641 is based on QingKe RISC-V core, 1-wire SDI, built-in PD PHY, BC interface, differential current sampling, motor PWM, single chip built-in 12V high-voltage IO driver MOS, supports typeC fast charging, provides overvoltage and overtemperature protection. 1.4 2024-03-12
CH318DS1.PDF High-speed USB signal isolation extender chip CH318 datasheet, USB high-speed signal isolation and transmission distance extension control chip, support capacitive coupling or network transformer coupling, USB signal isolation as well as real-time transit and transmission distance extension of USB signals. It can be used for high-speed USB signal isolation, isolation HUB, extension HUB and so on. 1.1 2024-02-06
CH9141DS1.PDF CH9141 datasheet. BLE and UART bidirectional transparent transmission chip, supports BLE and UART interface configuration, provides IO, ADC and other functions. It is convenient for serial device to realize BLE connection. The computer end provides BLE virtual serial port driver, compatible with common serial application program and serial port debug tools. CH9141 realizes wireless UART and UART extension, without secondary development. 2.1 2021-11-29
CH32F103DS0.PDF CH32F103 datasheet. A 32-bit Cortex-M3 core general-purpose MCU. CH32F103 integrates dual USB2.0 controllers, multi-channel TouchKey, 12-bit DAC, multi-channel 12-bit ADC, timers, CAN communication controller, I2C/UART/SPI and other peripheral resources. 1.3 2022-04-12
CH336DS1.PDF 4-Port HUB chip with USB NIC CH336 datasheet, 4-Port HUB and USB to Ethernet 2-in-1 controller chip, single chip integrates 4-port USB HUB and USB 100 Gigabit Ethernet expansion function. It can be applied to computer and industrial controller motherboards, docking stations, peripherals, embedded systems and other scenarios. 1.0 2024-03-11
CH569DS1.PDF CH569 datasheet. USB3.0 super-high-speed interface microcontroller based on the RISC-V instruction set. Peripherals include USB3.0 SuperSpeed and USB2.0 HighSpeed host and device controller and transceiver PHY, Gigabit Ethernet controller, dedicated high-speed SerDes controller and transceiver PHY, SD/EMMC interface controller, encryption/decryption module, high-speed parallel interface and digital video port (DVP). 1.2 2022-08-06
CH9329DS1.PDF CH9329 datasheet, serial port to standard USB HID keyboard/mouse/custom HID device, supports multiple working modes and serial communication modes. 1.1 2021-11-18
CH343DS1.PDF CH343 datasheet, USB to single serial port, supports up to 6M baud rate, serial port signals support 5V/3.3V/2.5V/1.8V, built-in crystal oscillator. CH343 supports built-in CDC driver in operating system or multi-functional high-speed VCP manufacture driver. 1.5 2021-11-18
CH9104DS1.PDF CH9104 datasheet, USB to quad serial ports, supports up to 6Mbps baud rate, supports USB parameters configuration, provides RS485 direction control and GPIO and other signal pins. Extending asynchronous serial ports for computer, or upgrade normal serial devices or MCUs directly to USB bus. 1.0 2023-03-03
CH382DS0.PDF CH382 Brief, which converts PCI-Express bus to dual serial ports, and printer/parallel port. Supports up to 8Mbps baud rate, used for PCIE high-speed serial port with automatic hardware flow control, serial ports networking, RS485 communication, parallel/printer port expansion, etc. 1 2021-07-05
CH331DS1.PDF CH331 datasheet. USB flash disk controller. With an external SPI memory chip added, the CH331 can implement up to 4M USB flash disk, and it supports customization of USB flash disk manufacturer name, capacity, serial number and other information. 1.2 2021-11-29
CH384DS0.PDF CH384 Brief, which converts PCI-Express bus quad serial ports, and printer/parallel port. Supports up to 8Mbps baud rate, used for PCIE high-speed serial port with automatic hardware flow control, serial ports networking, RS485 communication, parallel/printer port expansion, etc. 1 2021-07-05
CH367DS1.PDF CH367 datasheet, PCI-Express to 8-bit communication interfaces chip, supports I/O port mapping, expansion ROM and interrupt, used for acquisition card/IO control card/communication card, etc. 1.2 2021-12-10
CH453DS1.PDF CH453 datasheet. CH453 can be used for 128 LEDs or 16×8 segment digital tube drive and 64-key keyboard scanning control. 2.1 2021-11-29
CH463DS1.PDF CH463 datasheet, LCD display driver chip, 16 × 8 or 12 × 4 and other LCD display driver and 35-key keyboard scanning control, support for LCD backlight 64-level adjustment, 2-wire interface, compatible with I2C. 1.0 2024-03-26
CH449DS1.PDF CH449 datasheet. Dual 4×4 matrix analog switch chip, supports I2C communication, 1.8V to 5V wide voltage. The typical value of Ron is about 5Ω. CH449 supports switch of 4 inputs and 4 outputs differential signals or 2 groups of independent 4 inputs and 4 outputs single-ended signals. CH449 can be used for multiple arbitrary routing of video, USB2.0 and other signals. 1.1 2022-06-29
CH9445DS1.PDF CH9444/CH9445 datasheet. A super-speed MUX IC. 4:6 cross-point super-speed differential signal MUX switch. Supports cross-channel switch of 10Gbps, 5Gbps and 480Mbps USB3.1 signals, 8Gbps DP1.4 signals and other differential signals. Used in applications such as Type-C to DP, Type-C to DP+USB3.0, etc. 1.2 2023-08-17
CH338DS1.PDF Industrial-grade 7-port HUB chip CH338 datasheet, 7-port USB2.0 high-speed HUB chip, supports high-performance MTT mode, 7 downstream ports concurrent processing, supports over-current detection and port power control, can be applied to computers and industrial computer motherboards, peripherals, embedded systems, etc. 1.1 2024-03-11
CH555DS1.PDF CH555 datasheet. A USB Keyboard and RGB MCU with E8051 core. It provides 8K RAM, 64K Flash. It has built-in 128 groups of RGB LED controllers and USB Device feature, can be used for customized mechanical keyboard design. 1.4 2022-04-12
QingKeV3_Proces... QingKe V3 series microprocessor manual,QingKe V3 series microprocessors are self-developed 32-bit general-purpose MCU microprocessors based on the standard RISC-V Instruction Set Architecture (ISA). The V3 series supports RV32IMAC instruction set extension, single-cycle multiplication and hardware division. In addition, it also supports Hardware Prologue/Epilogue (HPE), Vector Table Free (VTF), streamlined 2-wire serial debug interface (SDI), support for "WFE" instructions and other features. 1.0 2022-12-05
CH237DS1.PDF CH237 datasheet. Type-A/C dual-port fast charging protocol controller, supports fast charging protocols such as PD3.0/2.0, BC1.2, etc. CH237 supports AC/DC constant voltage loop and constant current loop, with features of high integration and simplified peripherals. 1.6 2022-06-07
CH9101DS1.PDF CH9101 datasheet, USB to single serial port, supports up to 3M baud rate, serial port signals support 5V/3.3V/2.5V/1.8V, CH9101 provides RS485 control and GPIO signals, built-in crystal oscillator and provides SSOP28, QFN32, QFN16 and QSOP16 packages. CH9101 supports built-in CDC driver in operating system or multi-functional high-speed VCP manufacture driver. 1.4 2023-03-03
CH9103DS1.PDF CH9103 datasheet, USB to dual serial ports, supports up to 3M baud rate, serial port signals support 5V/3.3V/2.5V/1.8V, provides RS485 direction control and GPIO and other signal pins, built-in crystal oscillator, QFN40 package. Built-in Unique USB Serial Number, supports USB parameters configuration. CH9103 supports built-in CDC driver in operating system or multi-functional high-speed VCP manufacture driver. 1.1 2023-03-03
CH410DS1.PDF CH410 datasheet. CH410 is a power supervisor. CH410 supports 2.3V and 3V threshold voltages. It provides active-high or active-low reset signals at low voltage. 1.2 2022-08-08
CH440DS1.PDF CH440/2/3/4 datasheet. A multi-channel bidirectional analog switch IC with low resistance and high bandwidth. 550MHz bandwidth. 5Ω ON resistance. The CH440/2/3/4 supports switch of video signals and low-speed/full-speed/high-speed USB signals. 3.2 2022-06-29
CH236DS1.PDF CH236 datasheet. CH236 supports fast charging protocols such as PD3.0/2.0, BC1.2, etc. CH236 supports AC/DC constant voltage loop and constant current loop, and has built-in DC/DC control module, with features of high integration and simplified peripherals. 1.5 2021-12-03
CH9102DS1.PDF CH9102 datasheet, USB to single serial port, supports up to 4M baud rate, serial port signals support 1.8~5V. CH9102 provides RS485 control and GPIO signals, built-in crystal oscillator and provides QFN24 and QFN28 packages. CH9102 supports built-in CDC driver in operating system or multi-functional high-speed VCP manufacture driver. 1.3 2022-05-24
QingKeV4_Proces... QingKe V4 series microprocessor manual,QingKe V4 series microprocessors are self-developed 32-bit general-purpose MCU microprocessors based on the standard RISC-V Instruction Set Architecture (ISA). According to different application scenarios and instruction set combinations, the series includes V4A, V4B, V4C, V4F. V4 series all support RV32IMAC instruction set extensions, among which V4F supports single-precision hardware floating-point, i.e. RV32IMACF extensions. In addition, they also support Hardware Prologue/Epilogue (HPE), Vector Table Free (VTF), a streamlined 2-wire serial debug interface (SDI), support for "WFE" instructions, Physical Memory Protection (PMP), and other features. 1.3 2024-05-07
CH9434DS1.PDF CH9434 datasheet. SPI to 4-UART chip, compatible with 16C550. The baud rate can be up to 4M. It supports hardware flow control and provides signal pins to control direction of RS485 and GPIO signal pins, used for MCU 4-UART extension. 1.1 2021-11-19
CH392DS1.PDF CH392 datasheet. TCP/IP protocol stack chip, integrated 10M MAC and PHY transceiver, supports SPI/asynchronous serial port, built-in DHCP, ARP, UDP and TCP protocol firmware, supports MCU system to connect to Ethernet. 2.0 2023-10-11
CH32V20x_30xDS0... Information change in the download page (Software introduction/application scope):CH32V307 is a high-capacity general-purpose microcontroller designed based on 32-bit RISC-V core, equipped with V4F core and supports single-precision floating-point instruction set for higher computing performance. It supports USB2.0 high-speed interface (480Mbps) with built-in PHY transceiver, Gigabit Ethernet MAC, etc. 3.0 2024-03-11
CH462DS1.PDF CH462 datasheet. LCD display driver, as well as 128-dot LCD display drive controller. CH462 provides an on-chip clock oscillation circuit, and supports LCD operating voltage adjustment. The maximum size of supported LCD panel is 32×4. 1.2 2021-11-29
CH32V307DS0.PDF CH32V307 is a high-capacity general-purpose microcontroller designed based on 32-bit RISC-V core, equipped with V4F core and supports single-precision floating-point instruction set for higher computing performance. It supports USB2.0 high-speed interface (480Mbps) with built-in PHY transceiver, Gigabit Ethernet MAC, etc. 3.0 2024-03-11
CH9350DS.PDF CH9350 datasheet. A controller chip that realizes USB keyboard/mouse to UART communication. The transmission distance is extended through UART. It is convenient for KVM products to manage and control USB keyboard and USB mouse remotely. 2.3 2021-11-19
QingKeV2_Proces... QingKe V2 series microprocessor manual,QingKe V2 series microprocessor is a 32-bit general-purpose MCU microprocessor based on the standard RISC-V instruction set RV32I subset RV32E, with only 16 general-purpose registers, half of RV32I, and a more streamlined structure for deep embedded scenarios. V2 series supports standard RV32EC instruction extensions, in addition to custom XW extensions, Hardware Prologue/Epilogue (HPE), Vector Table Free (VTF), a more streamlined single-wire serial debug interface (SDI), and support for "WFE" instructions. 1.2 2024-05-07
CH9326DS1.PDF CH9326 datasheet, USB HID to serial port, built-in crystal oscillator, supports built-in HID driver in operating system. 1.6 2021-11-18
CH351DS1.PDF CH351 datasheet, PCI bus to dual serial ports or printer port chip, used for PCI to dual serial ports, PCI to printer port (parallel port). Supports Windows/Linux/macOS, etc.This datasheet is about PCI to dual serial ports. 1.1 2021-12-10
CH315DS1.PDF CH315 datasheet. CH315G is a USB1.1 extension cable control chip. The extension distance of network cable can be up to 300 meters. CH315H is a USB signal isolation control chip, used for optoelectronic isolator. 2.2 2021-12-03
CH365DS1.PDF CH365 datasheet, PCI-SLAVE to communication interfaces chip, supports I/O port mapping, memory mapping, expansion ROM and interrupt, used for acquisition card/IO control card/communication card, etc. 1.4 2021-12-10
CH558DS1.PDF CH558 datasheet, low/full-speed USB device + ADC 8-bit E8051 MCU, 40K program ROM, 4K+256 memory RAM, supports full-speed or low-speed USB devices, provides ADC, 4 groups of timers and PWM, dual serial ports, SPI, etc. 1.4 2023-05-15
CH456DS1.PDF CH456 datasheet. CH456 is used for 16 digital tubes display drive and 64-key keyboard scanning. CH456 supports 2-wire serial interface, and is compatible with IIC, simplifying the workload of MCU. 1.1 2021-11-29
CH334DS1.PDF CH334/CH335 datasheet. 4-port USB2.0 high-speed HUB controller. CH334/CH335 supports high-performance MTT, and supports over-current detection and port power control. One of the downstream facing ports of CH335 supports USB3.0 SuperSpeed passthrough upstream facing port. It can be applied to computers, industrial computer motherboards, peripherals, embedded systems, etc. 2.5 2024-03-26
CH9120DS1.PDF CH9120 datasheet. CH9120 realizes bidirectional transparent transmission between UART and Ethernet, supports UART and network configuration. CH9120 has built-in 10M PHY, and supports serial device to connect to Ethernet. 1.1 2021-12-03
CH241DS1.PDF CH241 datasheet. CH241 is a wireless power receiver, which integrates Qi BPP protocol. CH241 supports up to 5W output power. Adjustable output voltage. 1.1 2022-06-07
CH348DS1.PDF CH348 datasheet, USB to octal serial ports, supports up to 6Mbps baud rate and hardware flowcontrol, supports USB parameters configuration, provides RS485 direction control and GPIO and other signal pins, which can expand UART for computer or upgrade directly common serial device or MCU to USB bus. 1.3 2022-05-24
CH32F207DS0.PDF CH32F207 datasheet, CH32F205_207_203(high capacity) series are industrial-grade general-purpose microcontrollers designed based on 32-bit ARM Cortex-M3 core. Independent GPIO voltage (separate from system power supply), resources year-on-year increase in random number unit, increase the number of serial USART/UART to 8 groups, motor timer to 4 groups, etc. Dedicated interfaces: USB2.0 high-speed interface (480Mbps) with built-in PHY transceiver, Ethernet MAC up to Gigabit, and integrated 10M-PHY module, etc. 2.4 2022-10-28
CH9340DS.PDF CH9340 datasheet, USB CDC to single serial port, built-in crystal oscillator, supports built-in CDC driver in operating system. 1.0 2021-11-18
CH432DS1.PDF CH432 datasheet. Dual-UART expander. Compatible with 16C550. 8-bit parallel port or SPI to UART. Each UART receive/transmit data independently. Up to 4Mbps baud rate. Can be used for MCU dual-UART expansion. CH432 supports full-duplex/half-duplex/infrared modes. 1.1 2022-08-08
CH345DS1.PDF CH345 datasheet, USB to MIDI interface, supports MIDI input and output, used to make USB MIDI keyboards, and convert MIDI instruments to USB interfaces, etc. 1.4 2021-11-18
CH375DS1.PDF CH375 datasheet. Easy-to-use USB-HOST&DEVICE general interface chip, supports host-slave USB applications and dynamic switch, has built-in communication protocol firmware, and provides USB flash disk file system library. This datasheet introduces the physical sector operation of the USB flash disk in USB host mode. 4.0 2021-11-29
CH375DS2.PDF CH375 datasheet (Ⅱ). Easy-to-use USB-HOST&DEVICE general interface chip, supports host-slave USB applications and dynamic switch, has built-in communication protocol firmware, and provides USB flash disk file system library. This datasheet introduces the basic USB transfer commands in USB host mode. 4.0 2021-11-29
CH446DS1.PDF CH446 datasheet. 8x16 matrix analog switch chip, contains 128 analog switches, used for arbitrary routing of 8x16 signal channels. CH446 supports 4V to 12V single supply voltage, and supports +5V and -7V dual power supply voltage. The ON resistance is not greater than 65Ω. 1.4 2021-11-29
CH344DS1.PDF CH344 datasheet, USB to quad serial ports, supports up to 6Mbps baud rate, supports USB parameters configuration, provides RS485 direction control and GPIO and other signal pins. CH344 supports built-in CDC driver in operating system or multi-functional high-speed VCP manufacture driver. 1.5 2022-05-24
CH457DS1.PDF CH457 datasheet. 128-LED display driver. The CH457 dynamically drives 128 LEDs with 32-bit 4-segment structure or 16-bit 8-segment structure, and supports 2-wire/3-wire serial interface. 2.0 2021-11-29
CH342DS1.PDF CH342 datasheet, USB to dual serial port, supports up to 3M baud rate, serial port signals supports 1.8V~5V, built-in crystal oscillator. CH342 supports built-in CDC driver in operating system or multi-functional high-speed VCP manufacture driver. 1.5 2022-01-27
CH455DS1.PDF CH455 datasheet. CH455 can be used for 32 LEDs or 4 digital tubes drive, and 28-key keyboard and 3 combination keys scanning control. 1.5 2021-11-29
CH421DS1.PDF CH421 datasheet. Bidirectional buffer interface chip. The CH421 supports parallel port communication, asynchronous data exchange, no need to synchronization or waiting during read/write operations. The maximum transfer speed is not less than 7Mbytes per second. It can be used for 8-bit parallel port exchange data between two MCUs. 2.1 2021-11-29
CH372DS1.PDF CH372/CH375/CH376 (device mode) datasheet. Easy-to-use USB-DEVICE general interface chip, used for users to quickly develop USB products. This datasheet introduces the basic transfer commands of USB devices. 4.0 2021-11-29
CH554DS1.PDF CH554 datasheet. CH554 is an 8-bit E8051 MCU and supports low-speed USB host/slave and full-speed USB host/slave, with feature of low cost. It provides 16K program ROM and 1K+256 RAM, supports USB host and USB device, ADC, Touch-key, 3 sets of timers, PWM, 2 UARTs and SPI, etc. 1.8 2022-08-08
CH370DS1.PDF CH370 datasheet. General purpose USB interface chip, with parallel port/SPI control interface. CH370 supports USB Host mode, supports all types of transmission, HUB operation, and provides USB flash disk file system library. 1.2 2021-11-29
CH451DS1.PDF CH451 datasheet. CH451 can be used for 8×8 segment digital tube drive and 64-key keyboard scanning control, cascading 10MHz high-speed 4-wire interface to simplify the workload of MCU. 4.5 2021-11-29
CH247DS1.PDF CH247 datasheet. CH247 is a wireless power controller. CH247 supports Qi protocol, and supports up to 15W output power. 1.1 2022-06-07
BLE-TPT-K3.PDF BLE-TPT-K3 module, realize Bluetooth serial port bidirectional transmission, support serial port and Bluetooth interface configuration, and provide IO, ADC and other functions to facilitate the serial device to realize Bluetooth connection, no need for secondary development, to realize the wireless serial port and serial port extension function. 1.0 2023-12-22
CH450DS1.PDF CH450 datasheet. CH450 is used for driver of 48 LEDs or 6 digital tubes and for 48-key keyboard scan control, compatible with high-speed two-wire interface. 2.0 2021-11-19
CH422DS1.PDF CH422 datasheet. Remote I/O expander chip of two-wire serial interface, used for display of 4 digital tubes and I/O expansion application. The input is a two-wire interface compatible with I2C, and the output is an 8-bit bidirectional I/O port and 4-bit large-current output port. 2.0 2021-12-03
CH9143DS1.PDF CH9143 datasheet. BLE/UART/USB transceiver. The CH9143 implements data transfer among BLE, USB and UART. It supports BLE master-slave mode and slave mode, and supports BLE4.2. A PC-side virtual serial port driver is provided, compatible with common serial port applications and serial debug tools, no secondary development required, easy to implement transmission between 3 "serial ports". 1.2 2022-08-06
CH32F208DS0.PDF CH32F208 datasheet,CH32F208 series is an industrial-grade wireless microcontroller based on the 32-bit ARM Cortex-M3 core. The series is independent of GPIO voltage (separate from system power supply), on-chip integration of 2Mbps low-power Bluetooth BLE communication module, 10M Ethernet MAC+PHY module, USB2.0 full-speed device+host/device interface, CAN controller, etc. 2.4 2022-10-28
WCH-LinkUserMan... WCH-LinkUserManual introduces the basic functions of WCH-Link emulator and debugger, how to use it, and the solutions to common problems. 2.0 2024-03-26
BLE-SER.PDF BLE-SER manual. A BLE to UART module, supports BLE master-slave mode and slave mode, and supports BLE4.2. It can implement automatic connection and binding in BLE master-slave mode. Available PC-side BLE virtual serial port driver, which is compatible with common serial applications and serial port debug tools, with no secondary development required, implementing wireless UART and UART extension. 1.4 2022-06-30
CH224DS1.PDF CH224 datasheet. CH224 can act as Type-C UFP and support multiple fast charging protocols such as PD on Type-C and Type-A interfaces. It supports E-Mark simulation and the maximum supported power is 100W. The request voltage can be adjusted in real time. 1.6 2022-04-25
CH372DS3.PDF USB bus interface chip CH372G (serial bus parallel mode) datasheet. The sixteen CH372G chips can be connected to the asynchronous serial bus at the same time. 1.0 2021-11-29
BLE-TPT.PDF BLE-TPT manual. The BLE-TPT implements bidirectional transfer between BLE and serial port, supports serial port and BLE interface configuration, and provides IO, ADC and other functions to facilitate serial devices to achieve BLE connection, the computer-side provides BLE virtual serial port driver, compatible with common serial port applications and serial port debug tools, with no secondary development required, easy to communicate with serial ports, easy to get rid of the cable limit. 1.4 2022-06-30
CH376DS2.PDF CH376 datasheet (Ⅱ). Easy-to-use USB flash disk and SD card file management chip, supports host-slave USB applications, supports FAT32/FAT16/FAT12, supports SPI/8-bit parallel port/asynchronous serial port. MCU resource occupies less memory. This datasheet introduces USB basic transfer commands and external firmware in device mode. 1.0 2021-11-29
CH351DS2.PDF CH351 datasheet, PCI bus to dual serial ports or printer port chip, used for PCI to dual serial ports, PCI to printer port (parallel port). Supports Windows/Linux/macOS, etc.This datasheet is about PCI to printer port. 1.1 2021-12-10
CH384DS1.PDF CH384 datasheet, PCI-Express bus to multiple serial ports and printer/parallel port chip . Supports PCIE converts to Quad UARTs, Quad UARTs and a printer/parallel port, 8 UARTs, 28 UARTs,, etc. Supports up to 8Mbps baud rate, used for PCIE high-speed serial port with automatic hardware flow control, serial ports networking, RS485 communication, parallel/printer port expansion, etc. Supports Windows/Linux/macOS, etc. This datasheet is about PCIE to Quad UARTs and printer/parallel port. 1.1 2024-01-18
CH372DS2.PDF CH372/CH375/CH376 (device mode) datasheet (Ⅱ). Easy-to-use USB-DEVICE general interface chip, used for users to quickly develop USB products. This datasheet introduces the additional basic transfer commands and development steps with external firmware. 1.1 2021-11-29
CH378DS2.PDF CH378 datasheet (Ⅱ). Easy-to-use high-speed USB2.0 flash disk and SD card file management chip, supports high-speed host-slave USB applications, supports FAT32/FAT16/FAT12, supports SPI/8-bit parallel port/asynchronous serial port. This datasheet introduces USB basic transfer commands, internal firmware and external firmware in device mode. 4.2 2021-11-29
CH482DS1.PDF CH482/CH483/CH486 datasheet. The CH482/CH483 is a differential 2:1 USB3.0 Super-Speed analog switch IC, which supports USB 3.0 Super Speed, PCIe Gen1/2, SATA/SAS 1.5G/3G/6G, Display Port and so on. The CH486F is a differential 4:1 USB2.0 Super-Speed analog switch IC. 1.3 2022-06-29
CH344EVT.ZIP CH344 evaluation board description and design schematic, used for USB to quad serial ports. 1.3 2022-11-10
CH382DS1.PDF CH382 datasheet, PCI-Express bus to dual serial ports and printer/parallel port chip. Supports up to 8Mbps baud rate, supports Windows/Linux/macOS, etc. Used for PCIE high-speed serial port with automatic hardware flow control, serial ports networking, RS485 communication, parallel/printer port expansion, etc. 1.0 2022-01-27
CH424DS1.PDF CH424 datasheet. First-in-first-out memory chip. The CH424 provides 4KB on-chip FIFO. The use space can be checked at any time. It can be used to synchronize data blocks with 8-bit parallel ports between two MCUs. 1.1 2021-11-29
CH384DS2.PDF CH384 datasheet, PCI-Express bus to multiple serial ports and printer/parallel port chip . Supports PCIE converts to Quad UARTs, Quad UARTs and a printer/parallel port, 8 UARTs, 28 UARTs,, etc. Supports up to 8Mbps baud rate, used for PCIE high-speed serial port with automatic hardware flow control, serial ports networking, RS485 communication, parallel/printer port expansion, etc. Supports Windows/Linux/macOS, etc. This datasheet is about PCIE to 8 UARTs and 28 UARTs. 1.1 2024-01-10
CH543DS1.PDF CH543/CH542/CH541/CH540 datasheet. A USB communication and USB PD power management dual-role 8-bit PM-MCU, supports full-speed and low-speed USB Host and USB Device. It provides embedded PD PHY transceiver and controller. It also provides PWM, UART, I2C slave and other functional modules. It supports 12V high-voltage input, and is suited for Type-C PD products. 1.5 2023-09-20
Development Source
CH9342EVT.ZIP CH9342 evaluate board manual, schematic and PCB. Used for USB to Dual UARTs, implements extended UARTs on PC and other platforms, or upgrade serial devices to USB port. 1.0 2018-11-01
CH9344EVT.ZIP CH9344 evaluate board manual, schematic and PCB. Used for USB to Quad UARTs, implements extended UARTs on PC and other platforms, or upgrade serial devices to USB port. 1.0 2018-11-01
CH347EVT.ZIP CH347 evaluation board instruction, for USB2.0 high-speed converter chip CH347 to design principle diagram, application software and development manual, used for USB to dual UART, USB to SPI, USB to I2C, USB to JTAG and other functions. 1.4 2023-10-15
CH9102EVT.ZIP CH9102 evaluation board description and design schematic, supports GPIO and device PnP DEMO application for CH34X and CH910X, used for USB to serial port and GPIO etc. 1.3 2023-03-16
CH9340EVT.ZIP CH9340 evaluate board schematic, implements USB to UART based on CDC class. 1.0 2019-05-15
Driver&Tools
WCH_BLEAnalyzer... Instruction and installation of BLE Analyzer, Bluetooth Low Energy Analyzer used to listen to BLE broadcast channel packets or communication of BLE5.0 and BLE4.x protocol between connected devices, , and analyze the packets through PC software and finally display them to the user in a concise way. Support statistics, filtering, configuration, etc. BLEAnalyzer Pro supports listen to 37/38/39 channels communications at same timem, which can be used for development, design and test for BLE product. 1.53 2023-03-03
USBMSER.exe CH9344/CH348 USB to multi serial ports one-key installation driver for Windows, supports Windows 11/10/8.1/8/7/VISTA/XP/2000, Server 2022/2019/2016/2012/2008/2003 -32/64-bit. Microsoft WHQL/HCK Certified. Used to distribute to user with the product. 2.0 2023-10-19
CH343SER.ZIP VCP vendor driver and dll lib for Windows, supports CH342/CH343/CH344/CH347/CH9101/CH9102/CH9103/CH9104/CH9143, USB to high-speed serial port VCP vendor driver, supports Windows 11/10/8.1/8/7/VISTA/XP/2000 1.8 2023-10-12
CH367DRV.EXE CH367/CH368 Windows driver, supports 32/64-bit Windows 10/8.1/8/7/VISTA/XP, SERVER 2016/2012/2008/2003, 2000/NT4.0/ME/98, Microsoft WHQL Certified, used to distribute to the end user with the product. Supports PCIE card based CH367 or CH368. 1.2 2021-10-19
CH365DRV.EXE CH365 Windows driver which used to distribute to the end user with the product. Used for different kinds of PCI card based CH365. With Microsoft WHQL Certified, supports 32/64-bit Windows 10/8.1/8/7/VISTA/XP, Server 2016/2012/2008/2003, 2000/ME/98. 1.8 2016-09-28
CH365DRV.ZIP CH365 Windows driver and DLL dynamic library, contains INF installation file modification example. Used for different kinds of PCI card based CH365. With Microsoft WHQL Certified, supports 32/64-bit Windows 10/8.1/8/7/VISTA/XP, Server 2016/2012/2008/2003, 2000/ME/98. 1.8 2016-09-27
CH341SER.EXE CH340/CH341 USB to serial port One-Key installation VCP vendor driver for Windows, supports Windows 11/10/8.1/8/7/VISTA/XP/2000/98 3.8 2023-03-16
CH341PAR.EXE USB to JTAG/SPI/I2C/Parallel/GPIO interfaces one-key installation driver for Windows, supports CH341 for USB to SPI/I2C/EPP parallel/MEM parallel etc., supports CH347 for 480Mbps high speed USB to JTAG/SPI/I2C/GPIO etc., supports Windows 11/10/8.1/8/7/VISTA/XP/2000, Server 2019/2016/2012/2008/2003 -32/64 bit. Microsoft WHQL/HCK Certified. Used to distribute to user with the product. 2.4 2023-10-13
CH341SER.ZIP CH340/CH341 USB to serial port Windows driver, supports Windows XP/Vista/7/8/8.1/10/11/ SERVER 2003/2008/2012/2016/2019/2022 -32/64bit, Microsoft WHQL Certified, supports USB to 3-line and 9-line serial port. 3.8 2023-03-16
CH372DRV.EXE For CH372/CH375/CH376/CH378, USB driver which can be used in both built-in and external firmware modes, supports Windows 11/10/8.1/8/7/VISTA/XP/2000 3.4 2023-10-18
CH341PAR.ZIP USB to JTAG/SPI/I2C/Parallel/GPIO interfaces installation driver and DLL library for Windows, supports CH341 for USB to SPI/I2C/EPP parallel/MEM parallel etc.,supports CH347 for 480Mbps high speed USB to JTAG/SPI/I2C/GPIO etc., supports 32/64 bit Windows 11/10/8.1/8/7/VISTA/XP/2000, Server 2019/2016/2012/2008/2003. Microsoft WHQL/HCK Certified. Used to facilitate the integration of product applications. 2.4 2023-10-19
CH372DRV.ZIP For CH372/CH375/CH376/CH378, USB driver which can be used in both built-in and external firmware modes, supports Windows 11/10/8.1/8/7/VISTA/XP/2000 3.4 2023-10-19
CH367DRV.ZIP CH367/CH368 Windows driver and DLL dynamic library, supports 32/64-bit Windows 10/8.1/8/7/VISTA/XP, SERVER 2016/2012/2008/2003, 2000/NT4.0/ME/98, Microsoft WHQL Certified, used for PCIE card based CH367 or CH368. 1.2 2021-10-19
CH9340SER.EXE Driver for CH9340, supports USB to CDC serial port, supports Windows XP/Vista/7/8/8.1/10/11/ SERVER 2003/2008/2012/2016/2019/2022 -32/64bit, Microsoft WHQL Certified, for Linux/macOS/Windows 10 and above operating system use the driver built-in. Used to distribute to user with the product. 1.0 2022-05-11
CH343CDC.ZIP For CH342/CH343/CH344/CH347/CH910X/CH9143/CH9340, USB to CDC serial port driver, supports Windows 11/10/8.1/8/7/VISTA/XP/2000 1.5 2022-10-15
CH35XDRV.EXE For CH351/CH352/CH353/CH355/CH356/CH358/CH359 1.6 2019-06-14
CH38XDRV.EXE CH382/CH384 driver installation package and EEPROM configuration tool, used to distribute to the end user with the product. Supports PCIE to Dual UARTs card, PCIE to printer/ parallel port card, Dual UARTs and single parallel port card, Quad UARTs card, Quad UARTs and single parallel port card, Octal UARTs card, 28 UARTs card, etc. Supports 32/64-bit Windows 11/10/8.1/8/7/VISTA/XP 1.5 2021-10-16
CH35XDRV.ZIP For CH351/CH352/CH353/CH355/CH356/CH358/CH359 1.6 2019-06-14
CH36X_LINUX.ZIP Linux driver for CH365/CH367/CH368, application libraries and demos. 1.3 2023-10-12
CH38XDRV.ZIP CH382/CH384 driver installation package and EEPROM configuration tool, used to distribute to the end user with the product. Supports PCIE to Dual UARTs card, PCIE to printer/ parallel port card, Dual UARTs and single parallel port card, Quad UARTs card, Quad UARTs and single parallel port card, Octal UARTs card, 28 UARTs card, etc. Supports 32/64-bit Windows 11/10/8.1/8/7/VISTA/XP 1.5 2021-11-11
WCHISPTool_Setu... MCU burning software of CH54x,CH55x,CH56x,CH643x,CH641x,CH57x,CH58x,CH59x,CH32F10x,CH32F20x,CH32V00x,CH32V10x,CH32V20x,CH32V30x,CH32X03x,CH32L10x 3.6 2023-10-18
USBMSER.ZIP CH9344/CH348 USB to multi serial ports driver for Windows, supports Windows 11/10/8.1/8/7/VISTA/XP/2000, Server 2022/2019/2016/2012/2008/2003 -32/64-bit. Microsoft WHQL/HCK Certified. Used to facilitate the integration of product applications. 2.0 2023-10-19
COMTransmit.ZIP Serial port debug software for Windows. Integrates UART functions and various common tools, supports multi-serial port communication, UART intercommunication test, file sending and receiving, input and display of string and hexadecimal data, debug of module frame format etc. 1.4 2023-03-03
CH343SER.EXE One-Key installation driver for Windows for CH342/CH343/CH344/CH347/CH9101/CH9102/CH9103/CH9104/CH9143, USB to high-speed serial port VCP vendor driver, supports Windows 11/10/8.1/8/7/VISTA/XP/2000 1.8 2023-10-11
CH34XSER_MAC.ZI... For CH340/CH341/CH342/CH343/CH344/CH347/CH9101/CH9102/CH9103/CH9104/CH9143, USB to serial port VCP vendor driver of macOS 1.8 2022-05-13
CH343CDC.EXE For CH342/CH343/CH344/CH347/CH910X/CH9143/CH9340, USB to CDC serial port driver, supports Windows 11/10/8.1/8/7/VISTA/XP/2000 1.5 2022-10-15
WCHUSBNIC.EXE USB2.0 NIC driver 1.4 2023-05-17
CH341SER_ANDROI... USB to serial port Android driver-free installation driver, application library and demos, supports CH340/CH341/CH342/CH343/CH344/CH347/CH9101/CH9102/CH9103/CH9104/CH9143, for Android OS 4.4 and above in USB Host mode, without loading Android kernel driver and without root access operation. Includes apk installer, lib library file (Java Driver), App Demo (USB to UART Demo Project SDK) 1.7 2022-11-10
CH341SER_LINUX.... Linux driver for USB to serial port, supports CH340 and CH341, supports 32/64-bit operating systems. 1.7 2023-10-12
CH341SER_MAC.ZI... For CH340/CH341/CH342/CH343/CH344/CH347/CH9101/CH9102/CH9103/CH9104/CH9143, USB to serial port VCP vendor driver of macOS 1.8 2022-11-07
CH341PAR_ANDROI... CH341 USB to SPI/I2C/GPIO interfaces Android driver-free installation driver, application library and demos, for Android OS 3.1 and above in USB Host mode, without loading Android kernel driver and without root access operation. Includes apk installer, lib library file (Java Driver), App Demo, supports USB to EPP/MEM parallel port, supports USB to synchronous serial port: I2C, SPI, etc. 1.0 2014-10-10
CH341PAR_LINUX.... Linux driver for USB to JTAG/ SPI/ I2C/ Parallel port/ GPIO etc, support CH341 and CH347, supports USB to SPI/ I2C/ EPP Parallel port/ MEM Parallel port etc, supports 480Mbps high speed USB to JTAG/SPI/I2C/GPIO etc for CH347supports 32/64-bit operating systems. 1.4 2023-10-12
CH37X_MAC.ZIP Universal USB device macOS installation driver, application library and demos, supports CH372/CH374/CH375/CH376/CH378 and CH563/CH567/CH568/CH569 MCUs in USB device mode. Supports communication with the following devices: USB3.0 Super Speed/USB2.0 High Speed/USB1.1 Full Speed. Includes driver installation and library instruction documents. 1.1 2022-01-20
CH37X_LINUX.ZIP Linux device driver and application for common USB devices, supports CH372/ CH374/ CH375/ CH376/ CH378 and CH563/ CH567/ CH568/ CH569 MCU mode of USB devices, used for internal and external firmware mode, supports 32/64-bit operating systems. 1.2 2023-03-16
CH37X_ANDROID.Z... Universal USB device Android driver-free installation driver, application library and demos, supports CH372/CH374/CH375/CH376/CH378 and CH563/CH567/CH568/CH569 MCUs in USB device mode, supports USB Host mode for Android, without loading Android kernel driver and without root access operation. Includes apk installer, lib library file (Java Driver), App Demo. 1.1 2016-09-27
WCHISPTool_CMD.... Multi-platform command line tool for WCH MCU burning online, supports firmware download, verification and other operations for series MCU of WCH via USB or serial port. Contains ISP library and demo programs for customized development of ISP tool. Supports CH54x,CH55x,CH56x,CH643x,CH641x,CH57x,CH58x,CH59x,CH32F10x,CH32F20x,CH32V00x,CH32V10x,CH32V20x,CH32V30x,CH32X03x,CH32L10x series MCU chip. 3.6 2023-10-19
Application
CH32xRM.PDF CH32x datasheet, provides introduction to CH32F103x and CH32V103x in detail for user’s application development, applies to all series products with different memory capacities, different functional sources and different packages. 1.8 2024-03-11
CH9104EVT.ZIP CH9104 evaluation board description and design schematic, used for USB to quad serial ports and GPIO etc. 1.0 2023-03-03
CH9344SER_LINUX... Linux vendor driver for CH9344/CH348 of USB to multi-serial (quad/octal) serial ports, supports 32/64 -bit OS, include installation instruction. 2.0 2023-10-12
CH34xSerCfg.ZIP USB configuration tool of CH340/CH342/CH343/CH344/CH347/CH348/CH9101/CH9102/CH9103/CH9104 for Windows, used for modifie and configure the chip's manufacturer Vendor ID, product ID, maximum current value, BCD version number, manufacturer information and product information string descriptors. 1.5 2023-10-12
Others
PRODUCT_GUIDE.P... Electronic selection of product selection manual, please refer to related product technical manual for more technical information. 3.3 2024-07-06
PACKAGE.PDF Common package dimensions for CH series ICs: DIP, SKDIP, SDIP, SOP, SSOP, MSOP, QFP, LQFP, QFN, ... 3.6 2023-12-20
InstallNoteOn64... Instructions for the driver after 18 years of August cannot be installed under some 64-bit WIN7 (English) 1.0 2019-01-10

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