东芝TLP521-1，-2和-4组成的照片晶体管 光耦合到砷化镓红外发光二极管。 器TLP521-2提供了两个独立的通道，在八引脚塑料DIP 包，而器TLP521-4提供了四个隔离通道中 16个塑料DIP封装。-The TOSHIBA TLP521− 1, − 2 and − 4 consist of a photo− transistor optically coupled to a gallium arsenide infr

A seven-segment display (SSD), or seven-segment indicator, is a form of electronic display device for displaying decimal numerals that is an alternative to the more complex dot-matrix displays. Seven-segment displays are widely used in digital clocks

winhex文件直接读取十六进制文件，包括各种没法直接打开的系统文件.bin-Read the sixteen hex file directly to the WinHex file, including all can not directly open the system file.Bin

用VB实现十六进制编辑工具的源码，一般用于文档和数据分析用，软件工程师必备。(Using VB to achieve the sixteen binary editing tool source code, generally used for documentation and data analysis, software engineers must.)