鏅傞枔锛�2025/5/6 13:07:35
闁辫畝锛�23
SN74AHC245 鏄竴娆鹃洐鏂瑰悜闆诲闆诲钩杞夋彌鍣�锛屽爆浜� AHC锛圓dvanced High-speed CMOS锛夌郴鍒�銆傚畠鑳藉瀵︾従鏁告摎鍦ㄥ叐鍊嬩笉鍚岄浕澹撻浕骞充箣闁撶殑闆欏悜鍌宠几锛屽唬娉涙噳鐢ㄤ簬闇�瑕侀浕澹撻仼閰嶇殑鏁稿瓧绯荤当(t菕ng)涓��
銆�銆�瑭茶姱鐗囧収閮ㄩ泦鎴愪簡8浣嶇附绶氱珐娌栧櫒/绶氳矾椹呭嫊鍣�锛屾敮鎸佷笁鎱�(t脿i)杓稿嚭鍔熻兘锛屽厑瑷辩洿鎺ラ�ｆ帴鍒版暩鎿氱附绶�銆傞�氶亷浣跨敤鏂瑰悜鎺у埗寮曡叧 (DIR) 鍜岃几鍑哄暉鐢ㄥ紩鑵� (OE)锛屽彲浠ラ潏娲诲湴鎺у埗鏁告摎娴佺殑鏂瑰悜鍜岀媭鎱�(t脿i)銆�
銆�銆�SN74AHC245 鍏锋湁浣庡姛鑰�銆侀珮鍣伈瀹归檺鐨勭壒榛烇紝閬╁悎楂橀�熸噳鐢ㄧ挵(hu谩n)澧�銆傚叾宸ヤ綔闆绘簮鑼冨湇瀵紝A 绔彛鍜� B 绔彛鍙垎鍒ョ敱鐛ㄧ珛鐨勪緵闆婚浕澹撲緵闆�锛屽緸鑰屾柟渚垮鐝惧绋倧杓浕骞充箣闁撶殑淇¤櫉杞夋彌銆�
闆绘簮闆诲(VCC)锛�1.5V 鑷� 6V
銆�銆�宸ヤ綔婧害锛�-55掳C 鑷� 125掳C
銆�銆�鍌虫挱寤堕伈鏅傞枔锛氭渶澶�3.9ns (鍏稿瀷鍊�)
銆�銆�杓稿叆闆绘祦锛毬�1mA
銆�銆�杓稿嚭闆绘祦锛毬�24mA
銆�銆�灏佽椤炲瀷锛歋OIC, TSSOP
SN74AHC245 鏀寔闆欏悜鏁告摎鍌宠几锛屽叿鍌欑崹绔嬬殑 DIR 鍜� OE 鎺у埗寮曡叧锛岀敤浜庨潏娲婚厤缃俊铏熸祦鍚戝拰涓夋厠(t脿i)杓稿嚭鍔熻兘銆�
銆�銆�鑺墖鍏锋湁杓冨鐨勫伐浣滈浕澹撹寖鍦�锛屼娇鍏堕仼鐢ㄤ簬澶氱ó鎳夌敤鍫存櫙銆傚悓鏅�锛屽畠鍏煎 TTL 鍜� CMOS 杓稿叆杓稿嚭闆诲钩锛屾彁楂樹簡鑸囧叾浠栭倧杓櫒浠剁殑浜掓搷浣滄�с��
銆�銆�鐢变簬閲囩敤浜嗗厛閫茬殑 CMOS 宸ヨ棟锛孲N74AHC245 鍦ㄩ珮閫熼亱琛屾檪浠嶇劧淇濇寔杓冧綆鐨勫姛鑰楋紝骞朵笖鎻愪緵杓冮珮鐨勯浕姘ｆ�ц兘鍜屽彲闈犳�с��
銆�銆�姝ゅ锛岃┎鍣ㄤ欢鑳藉鍦ㄦサ绔韩搴︽浠朵笅姝ｅ父宸ヤ綔锛岄潪甯搁仼鍚堝伐妤�(y猫)鍜屾苯杌婄瓑鍤磋嫑鐠�(hu谩n)澧冧笅鐨勬噳鐢�銆�
SN74AHC245 寤ｆ硾鎳夌敤浜庨渶瑕佷笉鍚岄浕澹撻浕骞充箣闁撲俊铏熻綁鎻涚殑鍫存櫙銆備緥濡傦細
銆�銆�1. 鏁告摎绺界窔鎿村睍鍜岄殧闆紱
銆�銆�2. 涓嶅悓閭忚集闆昏矾涔嬮枔鐨勬帴鍙ｈō瑷�锛�
銆�銆�3. 宓屽叆寮忕郴绲�(t菕ng)涓殑闆诲閬╅厤锛�
銆�銆�4. 澶氶浕澹撳钩鑷虹殑寰帶鍒跺櫒閫氫俊锛�
銆�銆�5. 瀛樺劜鍣ㄦ垨澶栧湇瑷倷鐨勬暩鎿氬偝杓告⿱姊�锛�
銆�銆�6. 楂橀�熸暩瀛楅�氫俊閺堣矾涓殑淇¤櫉瑾跨瘈(ji茅)锛�
銆�銆�绺戒箣锛屼换浣曟秹鍙婂闆诲闆诲钩杞夋彌鎴栭渶瑕佸寮烽﹨鍕曡兘鍔涚殑瑷▓閮藉彲浠ヨ�冩叜浣跨敤 SN74AHC245銆�
SN74AHCT245, SN74LVTH245, TXB0108
