a座位表 Seat table[translate] adoesn't mean anything 不意味什么[translate] a8进制计数器用于产生3-8译码器和数据选择器的地址信号, 8 enters the system counter to use in producing 3-8 decoder and the data selector address signal,[translate]...
a整个电路由一个74160和与非门构成的8进制计数器、4个8选1数据选择器、一个3-8译码器和一个显示译码器7448构成。 The entire electric circuit 74160 and the NAND gate constitution 8 enters the system counter, 4 by one 8 chooses 1 data selector, a 3-8 decoder and demonstration decoder 7448 ...
74HC138 你可以搜索138
整个电路由一个74160和与非门构成的8进制计数器、4个8选1数据选择器、一个3-8译码器和一个显示译码器7448构成。问题补充:匿名 2013-05-23 12:21:38 The entire circuit consists of a NAND gate 74160 and composed of 8 binary counter, four 8-to-1 data selector, a 3-8 decoder...