鏅傞枔锛�2025/5/24 17:49:12
闁辫畝锛�20
CD74HCT245E 鏄竴绋�8浣嶉洐鍚戦浕澹撻浕骞宠綁鎻涘櫒锛屽爆浜嶩CT绯诲垪鍣ㄤ欢銆傝┎鑺墖鍙互鍦ㄤ笉鍚岀殑閭忚集闆诲钩涔嬮枔閫茶淇¤櫉杞夋彌锛屽唬娉涙噳鐢ㄤ簬闇�瑕佷笉鍚岄浕婧愰浕澹撻倧杓浕骞崇殑绯荤当(t菕ng)涓�銆傚叾瑷▓鍩轰簬鍏堥�茬殑CMOS鎶�琛�锛屽叿鏈変綆鍔熻�楀拰楂樺櫔鑱插闄愮殑鐗归粸銆�
銆�銆�CD74HCT245E鍏ч儴鍖呭惈8鍊嬬崹绔嬬殑闆欏悜绶╂矕鍣�锛屾瘡鍊嬬珐娌栧櫒閮藉彲浠ュ湪鍏╁�嬫柟鍚戜笂鍌宠几鏁�(sh霉)鎿�(j霉)銆傞�氶亷鎺у埗DIR锛堟柟鍚戯級寮曡叧鍜孏锛堜娇鑳斤級寮曡叧锛屽彲浠ュ鐝�(xi脿n)灏嶆暩(sh霉)鎿�(j霉)娴佸悜鍜屽偝杓哥媭鎱�(t脿i)鐨勭簿纰烘帶鍒�銆�
闆绘簮闆诲(VCC)锛�2V~6V
銆�銆�杓稿叆闆诲鑼冨湇锛�-0.5V 鑷� VCC+0.5V
銆�銆�杓稿嚭闆绘祦锛毬�24mA
銆�銆�鍌虫挱寤堕伈鏅傞枔锛氭渶澶�11ns锛堝吀鍨嬪��7ns锛�
銆�銆�宸ヤ綔婧害鑼冨湇锛�-55掳C鑷�+125掳C
銆�銆�灏佽褰㈠紡锛歋OIC-20, PDIP-20
CD74HCT245E 鐨勪富瑕佺壒鎬у寘鎷細
銆�銆�1. 楂橀�熸�ц兘锛氱鍚堥珮閫烠MOS (HCMOS) 鎶�琛撴婧�锛岃兘澶犳敮鎸侀珮閬�35MHz鐨勬搷浣滈牷鐜囥��
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銆�銆�3. 涓夋厠(t脿i)杓稿嚭锛氱暥浣胯兘寮曡叧铏曚簬楂橀浕骞虫檪锛屾墍鏈夎几鍑洪�插叆楂橀樆鎶楃媭鎱�(t脿i)锛屼究浜庣附绶氭噳鐢ㄣ��
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銆�銆�5. 楂樺櫔鑱插闄愶細鍏煎TTL鍜孋MOS杓稿叆闆诲钩锛岀⒑?锛熺吔搴疯噭?sh霉)鎿�(j霉)鍌宠几銆�
銆�銆�6. 宸ユキ(y猫)绱氭韩搴﹁寖鍦嶏細鑳藉鍦ㄦサ绔挵(hu谩n)澧冩浠朵笅绌�(w臎n)瀹氬伐浣滐紝閬╁悎宸ユキ(y猫)鍜屾苯杌婇牁鍩熶娇鐢�銆�
銆�銆�姝ゅ锛岃┎鍣ㄤ欢閭勫叿鏈変綆闈滄厠(t脿i)闆绘祦鍜岃壇濂界殑闆荤鍏煎鎬�(EMC)琛ㄧ従(xi脿n)銆�
CD74HCT245E 鑺墖閬╃敤浜庝互涓嬪牬鏅細
銆�銆�1. 鏁�(sh霉)鎿�(j霉)绺界窔绶╂矕锛氱敤浜庢摯灞曞井铏曠悊鍣ㄦ垨寰帶鍒跺櫒鐨勬暩(sh霉)鎿�(j霉)绺界窔椹呭嫊鑳藉姏銆�
銆�銆�2. 闆诲闆诲钩杞夋彌锛氶�ｆ帴閬嬭鍦ㄤ笉鍚岄浕婧愰浕澹撲笅鐨勫瓙绯荤当(t菕ng)锛屼緥濡�3.3V鑸�5V閭忚集闆昏矾涔嬮枔鐨勬帴鍙ｃ��
銆�銆�3. 瀛樺劜鍣ㄦ帴鍙ｏ細鐐哄閮ㄥ瓨鍎插櫒鎻愪緵澧炲挤鐨勯﹨鍕曡兘鍔涘拰闆绘埃闅旈洟銆�
銆�銆�4. 澶氳矾寰╃敤/瑙ｅ京鐢細鍒╃敤鍏朵笁鎱�(t脿i)杓稿嚭鍔熻兘瀵︾従(xi脿n)澶氳矾鏁�(sh霉)鎿�(j霉)閬告搰鍜屽垎閰�銆�
銆�銆�5. 缍�(w菐ng)绲￠�氫俊瑷倷锛氬璺敱鍣ㄣ�佷氦鎻涙绛夐渶瑕侀珮鏁堟暩(sh霉)鎿�(j霉)鍌宠几?sh霉)鑶遍緤绋�?br>銆�銆�绺戒箣锛孋D74HCT245E 鏄竴鍊嬮�氱敤鎬у挤銆侀潏娲绘�ч珮鐨勬暩(sh霉)瀛楅倧杓櫒浠�锛岄潪甯搁仼鍚堥渶瑕侀珮鎬ц兘鍜屽彲闈犳�т繚闅滅殑鎳夌敤闋樺煙銆�
SN74HCT245N, MC74HCT245P, DM74HCT245N
