https://e2e.ti.com/support/logic-group/logic/f/logic-forum/1346368/sn74ls244-sn74ls244nsr
器件型号:SN74LS244SN74LS244NSR 输出信号不正常、如 figure.e2e.ti.com/.../2347089c33b501bba8d779b4753ce32a.mp4中所示
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https://e2e.ti.com/support/logic-group/logic/f/logic-forum/1346368/sn74ls244-sn74ls244nsr
器件型号:SN74LS244SN74LS244NSR 输出信号不正常、如 figure.e2e.ti.com/.../2347089c33b501bba8d779b4753ce32a.mp4中所示
Tony、
您能否更好地展示该电路板? 我真的无法 从你提供的图片中看出任何东西。
我也想问一下这个问题:
它发现 B 键也会在按键 A 时响应
您是否确定电路板上没有短接? 可能就是为了解释这个问题。
此致!
马尔科姆