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鎮ㄦ墍鍦ㄧ殑浣嶇疆锛�闆诲瓙鍏冨櫒浠堕噰璩肩恫(w菐ng) > IC鐧剧 > CD54HC257

CD54HC257 鐧�(f膩)甯冩檪闁� 鏅傞枔锛�2025/5/6 15:13:52 鏌ョ湅 闁辫畝锛�29

CD54HC257 鏄竴娆鹃洐鍥涢伕涓�鏁�(sh霉)鎿�(j霉)閬告搰鍣�/澶氳矾寰�(f霉)鐢ㄥ櫒锛屽爆浜� 74HC 绯诲垪楂橀�� CMOS 鍣ㄤ欢銆傚畠閲囩敤鍏堥�茬殑纭呮煹 CMOS 鎶�琛�(sh霉)鍒堕�狅紝鍏锋湁浣庡姛鑰楀拰楂橀枊闂�(gu膩n)閫熷害鐨勭壒榛�銆傝┎鑺墖鍙互鍏煎 TTL 杓稿嚭锛岄潪甯搁仼鍚堝湪鏁�(sh霉)瀛楅浕璺腑鐢ㄤ簬鏁�(sh霉)鎿�(j霉)閬告搰銆佷俊铏熷垏鎻涗互鍙婂璺几鍏ョ殑铏曠悊銆�
銆�銆�CD54HC257 鍖呭惈鍏╁�嬬崹绔嬬殑鍥涢伕涓�鏁�(sh霉)鎿�(j霉)閬告搰鍣�锛屾瘡鍊嬮伕鎿囧櫒閮芥湁鍥涘�嬫暩(sh霉)鎿�(j霉)杓稿叆绔紙A0-A3 鍜� B0-B3锛�锛屼竴鍊嬪叐浣嶅湴鍧�杓稿叆锛圫0 鍜� S1锛�锛屼竴鍊嬩娇鑳界锛圙锛�锛屼互鍙婁竴鍊嬭几鍑虹锛圷锛�銆傜暥(d膩ng)浣胯兘绔� G 琚縺娲绘檪锛岄伕鎿囧櫒鏍规摎(j霉)鍦板潃杓稿叆 S0 鍜� S1 鐨勭媭鎱�(t脿i)灏囧皪鎳�(y墨ng)鐨勬暩(sh霉)鎿�(j霉)杓稿叆绔俊铏熷偝閬炲埌杓稿嚭绔�銆�

鍙冩暩(sh霉)

閭忚集椤炲瀷锛氭暩(sh霉)鎿�(j霉)閬告搰鍣�/澶氳矾寰�(f霉)鐢ㄥ櫒
銆�銆�宸ヤ綔闆诲鑼冨湇锛�2V 鑷� 6V
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�闈滄厠(t脿i)闆绘祦锛氭渶澶� 1渭A锛�25掳C锛�
銆�銆�杓稿叆闆诲锛氭渶澶� 10pF
銆�銆�杓稿嚭闆绘祦锛毬�25mA
銆�銆�灏佽褰㈠紡锛欴IP/SOIC
銆�銆�宸ヤ綔婧害鑼冨湇锛�-40掳C 鑷� +125掳C

鐗规��

1. 楂橀�� CMOS 鎶�琛�(sh霉)锛屽偝鎾欢閬叉檪闁撶煭銆�
銆�銆�2. 宸ヤ綔闆诲鑼冨湇瀵�锛岄仼鍚堝绋緵闆绘浠躲��
銆�銆�3. 鍏峰倷 TTL 鍏煎杓稿叆锛屾柟渚胯垏鍏朵粬閭忚集绯诲垪鍣ㄤ欢閫ｆ帴銆�
銆�銆�4. 姣忓�嬮伕鎿囧櫒鐛ㄧ珛鎿嶄綔锛屼究浜庡鐝�(xi脿n)寰�(f霉)闆滈浕璺ō(sh猫)瑷�銆�
銆�銆�5. 妤典綆鐨勯潨鎱�(t脿i)闆绘祦锛屽欢闀烽浕姹犱緵闆昏ō(sh猫)鍌欑殑浣跨敤澹藉懡銆�
銆�銆�6. 瀵伐浣滄韩搴﹁寖鍦�锛岄仼鐢ㄤ簬宸ユキ(y猫)鍙婂晢妤�(y猫)鐠�(hu谩n)澧�銆�

鎳�(y墨ng)鐢�

CD54HC257 寤ｆ硾鎳�(y墨ng)鐢ㄤ簬鍚勭ó闇�瑕佹暩(sh霉)鎿�(j霉)閬告搰鍜屼俊铏熷垏鎻涚殑鍫村悎锛屼緥濡傦細
銆�銆�1. 鏁�(sh霉)瀛椾俊铏熻檿鐞嗗櫒涓殑鏁�(sh霉)鎿�(j霉)閫氶亾鍒囨彌銆�
銆�銆�2. 澶氳矾鍌虫劅鍣ㄤ俊铏熼噰闆嗙郴绲�(t菕ng)銆�
銆�銆�3. 椤ず鍣ㄩ﹨(q奴)鍕曢浕璺腑鐨勬暩(sh霉)鎿�(j霉)璺敱銆�
銆�銆�4. 鍙法绋嬮倧杓帶鍒跺櫒 (PLC) 涓殑杓稿叆/杓稿嚭淇¤櫉绠＄悊銆�
銆�銆�5. 閫氫俊瑷�(sh猫)鍌欎腑鐨勪俊閬撻伕鎿�銆�
銆�銆�6. 娓│娓噺鍎�鍣ㄤ腑鐨勪俊铏熷璺京(f霉)鐢ㄣ��

鏇夸唬鍨嬭櫉

74HC257, CD74HC257, SN74HC257

cd54hc257鎺ㄨ枽渚涙噳(y墨ng)鍟� 鏇村>

  • 鐢�(ch菐n)鍝佸瀷铏�
  • 渚涙噳(y墨ng)鍟�
  • 鏁�(sh霉)閲�
  • 寤犲晢
  • 灏佽/鎵硅櫉
  • 瑭㈠児

cd54hc257璩囨枡 鏇村>

  • 鍨嬭櫉
  • 鎻忚堪
  • 鍝佺墝
  • 闁辫涓嬭級