HT82K95E应用范例 详细的usb程序 HT82K95E datasheet -HT82K95E datasheet Features
Operating voltage: fSYS=6M/12MHz: 3.3V~5.5V
Low voltage reset function
32 bidirectional I/O lines (max.)
8-bit programmable timer/event counter with overflo

3V和5V互连技术，主要以例子介绍说明3.3V系统和5V系统的接口连接，对系统硬件设计有参考价值-3V and 5V interconnect technology, introducing examples of descr iption mainly 3.3V and 5V system, the system interface, hardware design of the reference value