文件名称:74ls138rar
- 所属分类:
- 软件工程
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- 上传时间:
- 2012-11-26
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- 24kb
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- ru ji******
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74HC138管脚图:74LS138 为3 线-8 线译码器,共有 54/74S138和 54/74LS138 两种线路结构型式,其工作原理如下:
当一个选通端(G1)为高电平,另两个选通端(/(G2A)和/(G2B))为
低电平时,可将地址端(A、B、C)的二进制编码在一个对应的输出端以低
-74HC138 pin diagram: 74LS138-8 line, 3-wire decoder, the the total 54/74S138 and 54/74LS138 two line structure type, its working principle is as follows:
When a strobe terminal (G1) is high, the other two selected through the end of (/ (G2A,)/(G2B))
Low, the output of the binary encoding of the address side (A, B, C) in a corresponding side with low
当一个选通端(G1)为高电平,另两个选通端(/(G2A)和/(G2B))为
低电平时,可将地址端(A、B、C)的二进制编码在一个对应的输出端以低
-74HC138 pin diagram: 74LS138-8 line, 3-wire decoder, the the total 54/74S138 and 54/74LS138 two line structure type, its working principle is as follows:
When a strobe terminal (G1) is high, the other two selected through the end of (/ (G2A,)/(G2B))
Low, the output of the binary encoding of the address side (A, B, C) in a corresponding side with low
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