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file name	file content
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.
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.
CH32V20x_30xDS0.PDF	CH32V20X_30X datasheet. 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.
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.