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74ABT245 鏄竴绋洐闆绘簮绺界窔鏀剁櫦(f膩)鍣紝灞簬 ABT锛圓dvanced BiCMOS Technology锛夌郴鍒楀櫒浠�銆傚畠鍏锋湁涓夋厠(t脿i)杓稿嚭鍔熻兘鍜屾柟鍚戞帶鍒剁壒鎬э紝閬╃敤浜庢暩鎿氱附绶氬偝杓�銆佸璺京鐢ㄧ瓑鎳夌敤鍫村悎銆傝┎鑺墖鏀寔闆欏悜鏁告摎鍌宠几锛屽苟鑳藉閫氶亷鏂瑰悜鎺у埗寮曡叧锛圖IR锛夐伕鎿囨暩鎿氭祦鍚�銆�
銆�銆�74ABT245 鐨勮ō瑷堜娇鍏堕仼鍚堜簬闇�瑕侀珮鎬ц兘鍜屼綆鍔熻�楃殑绯荤当(t菕ng)锛屽唬娉涙噳鐢ㄤ簬瑷堢畻姗�銆侀�氫俊瑷倷浠ュ強宸ユキ(y猫)鎺у埗绯荤当(t菕ng)绛夐牁鍩�銆�
閭忚集椤炲瀷锛氱附绶氭敹鐧�(f膩)鍣�
銆�銆�閫氶亾鏁搁噺锛�8 閫氶亾
銆�銆�渚涢浕闆诲(VCC)锛�3.3V 鎴� 5V
銆�銆�宸ヤ綔婧害鑼冨湇锛�-40掳C 鑷� +85掳C
銆�銆�灏佽褰㈠紡锛欳SC (Chip Scale Package)
銆�銆�杓稿叆闆诲锛氱磩 10pF
銆�銆�鍌虫挱寤堕伈鏅傞枔锛氬吀鍨嬪�肩偤 5ns
銆�銆�鏈�澶ч枊闂滈浕娴侊細卤24mA
銆�銆�闈滄厠(t脿i)鍔熻�楋細鍏稿瀷鍊肩偤 10mW
74ABT245 鍏峰倷浠ヤ笅闂滈嵉鐗规�э細
銆�銆�1. 闆欏悜鏁告摎鍌宠几鑳藉姏锛屽彲閫氶亷 DIR 寮曡叧鎺у埗鏁告摎娴佸悜銆�
銆�銆�2. 鏀寔鐛ㄧ珛鐨� A 绔彛鍜� B 绔彛渚涢浕闆诲锛屽厑瑷变笉鍚岄浕澹撳煙涔嬮枔鐨勪俊铏熻綁鎻�銆�
銆�銆�3. 杓稿嚭绔叿鍌欎笁鎱�(t脿i)鍔熻兘锛屽彲瀵︾従澶氳矾寰╃敤鎴栫附绶氶﹨鍕�銆�
銆�銆�4. 楂橀�熼亱琛屾�ц兘锛岄仼鍚堥珮闋绘噳鐢ㄥ牬鏅�銆�
銆�銆�5. 鍏ч儴闆昏矾鍖呭惈閬庡淇濊鍜岄潨闆婚槻璀峰姛鑳斤紝鎻愰珮浜嗗彲闈犳��銆�
銆�銆�6. 灏佽褰㈠紡绶婃箠锛岄仼鍚堥珮瀵嗗害 PCB 甯冨眬瑷▓銆�
銆�銆�閫欎簺鐗规�т娇寰楄┎鑺墖鍦ㄥ绋京闆滈浕瀛愮郴绲�(t菕ng)涓〃鐝惧劒(y艒u)鐣�銆�
74ABT245 寤ｆ硾鐢ㄤ簬浠ヤ笅鍫存櫙锛�
銆�銆�1. 鏁告摎绺界窔鍒囨彌鑸囧偝杓革紝渚嬪鍦ㄥ井铏曠悊鍣ㄥ拰澶栬ō涔嬮枔鍌抽仦淇℃伅銆�
銆�銆�2. 涓嶅悓闆诲鍩熶箣闁撶殑淇¤櫉闆诲钩杞夋彌锛屽 3.3V 鍜� 5V 绯荤当(t菕ng)鐨勬帴鍙�銆�
銆�銆�3. 澶氳矾寰╃敤鍣ㄨō瑷堬紝鍏佽ū鍠绺界窔閫ｆ帴澶氬�嬭ō鍌�銆�
銆�銆�4. 宸ユキ(y猫)鑷嫊鍖栨帶鍒朵腑鐨勯�氫俊妯″銆�
銆�銆�5. 閫氫俊瑷倷涓殑楂橀�熸暩鎿氫氦鎻�銆�
銆�銆�鐢变簬鍏跺挤澶х殑鍔熻兘鍜岄潏娲绘�э紝74ABT245 鎴愮偤瑷卞宸ョ▼甯湪瑷▓楂橀�熸暩鎿氬偝杓搁浕璺檪鐨勯閬哥祫浠�銆�
74ABT244, SN74ABT245A, NC7SZ245
