CH341A Datasheet (ETC) - USB bus convert

CH341A, USB bus convert

Positive power input port, requires an 0.1uF power decoupling capacitance Public ground, ground connection for USB bus Attachment of VCC input external power while 3.3V;connects of 0.01uF decoupling capacitance outside while 5V Input of crystal oscillator, attachment of crystal and crystal oscillato

The DataSheet of CH341 (the first) 1 USB bus convert chip CH341 English DataSheet Version:2D http://wch.cn http://wch-ic.com 1.

Introduction CH341 is a USB bus convert chip, providing UART, printer port, parallel and synchronous serial with 2-wire or 4-wire through USB bus.

In UART mode, CH341 provides alternant rate control signals such as serial transfer enable, serial receive in ready etc.

It also supplies common MODEM communication signal in order to expand UART for computer or upgrade co

CH341A Features

* 2.1.Introduction

* Full speed USB device interface, conforms to USB Specification Version 2.0, only needs crystal and capacitance external.

* Optional: define Vender ID, production ID and list number through external low-cost serial EEPROM.

* Supports 5V and 3.3V power source.

* Low-