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TTL\uff08Transistor-Transistor Logic\uff09\u662f\u4e00\u79cd\u6570\u5b57\u7535\u8def\u6280\u672f\uff0c\u5e38\u7528\u4e8e\u5fae\u5904\u7406\u5668\u548c\u5d4c\u5165\u5f0f\u7cfb\u7edf\u4e2d\u3002TTL\u901a\u4fe1\u4f7f\u7528\u4f4e\u7535\u5e73\uff080V\uff09\u8868\u793a\u903b\u8f910\uff0c\u9ad8\u7535\u5e73\uff085V\uff09\u8868\u793a\u903b\u8f911\u3002<\/p>\n
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