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7408 TTL2输入端四与门
This device contains four independent gates each of whichperforms the logic AND function....
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7430 TTL8输入端与非门
This device contains a single gate which performs the logicNAND function.Y Alternate Mili...
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7411 TTL3输入端3与门
This device contains three independent gates with threedata inputs each which perform the log...