Description: -QH: 八位并行输出端，可以直接控制数码管的8个段。QH : 级联输出端。我将它接下一个595的SI端。SI: 串行数据输入端.........-SCM and 74LS595 (8-bit output latch shift register) 74595 to use the data side: QA- QH: 8 parallel output can directly control the digital tube 8 segment. QH ' : Cascade output. I have added it took over a 595 end of the SI. SI: Serial data input
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74ls595.doc
guolsd.txt
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