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SN54LS74A-SP 鍏锋湁浠ヤ笅鐗归粸(di菐n)锛�
銆�銆�1. 楂橀�熸�ц兘锛氱敱浜庨噰鐢ㄤ綆鍔熻�楄倴鐗瑰熀鎶�琛�(sh霉)锛屽櫒浠剁殑鍌虫挱寤堕伈鏅�(sh铆)闁撻潪甯哥煭锛岄仼鍚堥珮闋绘搷浣�銆�
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SN54LS74A-SP 鐨勪富瑕佹噳(y墨ng)鐢ㄥ牬鏅�鍖呮嫭锛�
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SN74LS74A, MC14013B, CD4013B