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https://e2e.ti.com/support/logic-group/logic/f/logic-forum/1265459/sn74ls153-suggest-a-multiplexer-that-supports-modbus-rs-485
在将 Modbus MAX485模块的输出连接到以9600波特率运行的 SN74LS153多路复用器时、为什么我们会遇到不正确的输出？
理论上、这可以起作用。
请展示原理图。
(SN74LS 是非常旧的双极器件、仅出售用于支持传统应用；请改用 SN74HCS153。)
