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CD54HC257 鏄竴娆鹃洐鍥涢伕涓�鏁�(sh霉)鎿�(j霉)閬告搰鍣�/澶氳矾寰╃敤鍣�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�琛撳埗閫�锛屽叿鏈変綆鍔熻�楀拰楂橀枊闂滈�熷害鐨勭壒榛炪�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�
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銆�銆�宸ヤ綔闆诲鑼冨湇锛�2V 鑷� 6V
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銆�銆�杓稿叆闆诲锛氭渶澶� 10pF
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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
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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╅洔闆昏矾瑷▓銆�
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CD54HC257 寤ｆ硾鎳夌敤浜庡悇绋渶瑕佹暩(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
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銆�銆�3. 椤ず鍣ㄩ﹨鍕曢浕璺腑鐨勬暩(sh霉)鎿�(j霉)璺敱銆�
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銆�銆�5. 閫氫俊瑷倷涓殑淇￠亾閬告搰銆�
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74HC257, CD74HC257, SN74HC257
