求翻译：文介绍了一种比较简单方便设计USB设备的方法，设计采用51单片机和USB接口芯片组成的单片机最小系统来实现一个完整的USB设备是什么意思？

Paper describes a relatively simple is kind to promise the design of usb devices 51 microcontroller and usb interface chip microcontroller minimum system designed to achieve a complete usb devices

The introduction of the more simple design USB device, designed with 51 single-chip-chip and USB interface consisting of the smallest single-chip phone system to achieve a more complete USB device

The article introduced one kind of quite simple convenience designs the USB equipment the method, the design uses 51 monolithic integrated circuits and the USB connection chip composition monolithic integrated circuit smallest system realizes a complete USB equipment

Article describes a simple and convenient method for design of USB devices, designed with 51 monolithic integrated circuit chips and USB interface single-chip microcomputer to achieve a minimum system of complete USB device

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