CD74HCT297 鏅傞枔锛�2025/5/6 20:37:09 闁辫畝锛�21

CD74HCT297 鏄竴娆惧熀浜� CMOS 鎶€琛�(sh霉)鐨勫洓璺� D 鍨嬭Ц鐧�(f膩)鍣ㄨ姱鐗囷紝寤ｆ硾鎳�(y墨ng)鐢ㄤ簬鏁�(sh霉)瀛楅倧杓浕璺腑銆傝┎鑺墖鍏锋湁楂橀浕骞冲吋瀹规€э紙HCT锛�锛屽彲浠ヨ垏妯欐簴 TTL 閭忚集闆诲钩鍏煎銆傚叾鍏�(n猫i)閮ㄩ泦鎴愪簡鍥涘€嬬崹绔嬬殑 D 鍨嬭Ц鐧�(f膩)鍣�锛屾瘡鍊嬭Ц鐧�(f膩)鍣ㄥ潎鍖呭惈鏅傞悩杓稿叆銆佹暩(sh霉)鎿�(j霉)杓稿叆鍜岃几鍑哄紩鑵�銆傝┎鍣ㄤ欢鏀寔鍚屾鎿嶄綔锛屽苟鍦ㄦ檪閻樹俊铏熺殑浣滅敤涓嬪鐝�(xi脿n)鏁�(sh霉)鎿�(j霉)閹栧瓨鍔熻兘銆�
銆€銆€CD74HCT297 鐨勮ō(sh猫)瑷堜娇鍏堕潪甯搁仼鍚堢敤浜庨渶瑕佷綆鍔熻€�銆侀珮闁嬮棞(gu膩n)閫熷害鐨勬噳(y墨ng)鐢ㄥ牬鏅�锛屼緥濡傚瘎瀛樺櫒銆佽▓鏁�(sh霉)鍣ㄥ拰鍏朵粬鏁�(sh霉)鎿�(j霉)瀛樺劜鐩搁棞(gu膩n)鐨勬暩(sh霉)瀛楅浕璺郴绲�(t菕ng)銆�

鍙冩暩(sh霉)

闆绘簮闆诲锛�2V 鑷� 6V
銆€銆€宸ヤ綔婧害鑼冨湇锛�-55掳C 鑷� +125掳C
銆€銆€鍌虫挱寤堕伈鏅傞枔锛氭渶澶� 18ns锛堝吀鍨嬪€硷級
銆€銆€杓稿叆闆绘祦锛毬�1mA
銆€銆€杓稿嚭闆绘祦锛毬�25mA
銆€銆€灏佽褰㈠紡锛歋OIC-16, PDIP-16

鐗规€�

1. 鍥涘€嬬崹绔嬬殑 D 鍨嬭Ц鐧�(f膩)鍣ㄥ柈鍏�銆�
銆€銆€2. 楂橀浕骞冲吋瀹规€� (HCT)锛屽彲鐩存帴鑸� TTL 閭忚集鎺ュ彛銆�
銆€銆€3. 鏀寔鍚屾鎿嶄綔锛屾暩(sh霉)鎿�(j霉)閹栧瓨鐢辨檪閻樹俊铏熸帶鍒�銆�
銆€銆€4. 宸ヤ綔闆诲鑼冨湇瀵唬锛岄仼鎳�(y墨ng)澶氱ó渚涢浕鐠�(hu谩n)澧�銆�
銆€銆€5. 瓒呬綆闈滄厠(t脿i)闆绘祦锛岄仼鐢ㄤ簬闆绘睜渚涢浕瑷�(sh猫)鍌�銆�
銆€銆€6. 寤ｆ硾鐨勫伐浣滄韩搴﹁寖鍦�锛屾豢瓒冲伐妤�(y猫)绱氭噳(y墨ng)鐢ㄩ渶姹�銆�
銆€銆€7. 灏忓瀷鍖栧皝瑁濋伕闋咃紝渚夸簬 PCB 瑷�(sh猫)瑷堝竷灞€銆�

鎳�(y墨ng)鐢�

1. 鏁�(sh霉)鎿�(j霉)瀵勫瓨鍣ㄥ拰绉讳綅瀵勫瓨鍣�銆�
銆€銆€2. 鏁�(sh霉)瀛椾俊铏熻檿鐞嗕腑鐨勬暩(sh霉)鎿�(j霉)瀛樺劜銆�
銆€銆€3. 瑷堟暩(sh霉)鍣ㄥ拰鍒嗛牷鍣ㄩ浕璺€�
銆€銆€4. 寰帶鍒跺櫒澶栧湇鎿村睍妯″銆�
銆€銆€5. 鍚勭ó绲勫悎閭忚集鍜屾檪搴忛倧杓浕璺�銆�
銆€銆€6. 宸ユキ(y猫)鑷嫊鍖栨帶鍒惰ō(sh猫)鍌�銆�
銆€銆€7. 娑堣不椤為浕瀛愮敘(ch菐n)鍝佷腑鐨勬暩(sh霉)瀛楅倧杓祫浠躲€�