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鎮ㄥソ锛屾杩庝締(l谩i)鍒扮董搴�(k霉)闆诲瓙甯傚牬(ch菐ng)缍�(w菐ng) 鐧婚寗 | 鍏嶈不(f猫i)娉ㄥ唺(c猫)

鎮ㄦ墍鍦ㄧ殑浣嶇疆锛�闆诲瓙鍏冨櫒浠堕噰璩�(g貌u)缍�(w菐ng) > IC鐧剧 > SN74ACT8990

SN74ACT8990 鐧�(f膩)甯冩檪(sh铆)闁� 鏅�(sh铆)闁擄細2025/6/4 19:12:46 鏌ョ湅 闁辫畝锛�6

SN74ACT8990 鏄竴娆鹃珮閫� CMOS 閭忚集鍣ㄤ欢锛屽爆浜� TI锛堝痉宸炲剙鍣級鐨� SN74ACT 绯诲垪銆傝┎绯诲垪浠ラ珮鎬ц兘鍜屼綆鍔熻�楄憲绋�(ch膿ng)銆係N74ACT8990 鍏烽珨渚�(l谩i)瑾�(shu艒)鏄竴鍊�(g猫)闆� 4 閬� 1 鏁�(sh霉)鎿�(j霉)閬告搰鍣�/澶氳矾寰�(f霉)鐢ㄥ櫒锛屽叿鏈夌崹(d煤)绔嬬殑鏁�(sh霉)鎿�(j霉)杓稿叆銆侀伕鎿囪几鍏ュ拰杓稿嚭寮曡叧锛岄仼鐢ㄤ簬闇�瑕侀珮鍒囨彌閫熷害鐨勬噳(y墨ng)鐢ㄥ牬(ch菐ng)鏅�銆�
銆�銆�閫欐鑺墖閫氶亷(gu貌)灏囧鍊�(g猫)鏁�(sh霉)鎿�(j霉)婧愮祫鍚堢偤鍠竴杓稿嚭淇¤櫉(h脿o)锛岀啊(ji菐n)鍖栦簡寰�(f霉)闆滈浕璺ō(sh猫)瑷�(j矛)涓殑鏁�(sh霉)鎿�(j霉)璺敱鍟�(w猫n)椤屻�傛澶�锛屽畠鍏煎 TTL 鍜� CMOS 闆诲钩锛岃兘澶犺紩鏉捐垏鍚勭ó鏁�(sh霉)瀛楃郴绲�(t菕ng)闆嗘垚銆�

鍙冩暩(sh霉)

閭忚集椤�(l猫i)鍨嬶細闆� 4 閬� 1 鏁�(sh霉)鎿�(j霉)閬告搰鍣�/澶氳矾寰�(f霉)鐢ㄥ櫒
銆�銆�闆绘簮闆诲(Vcc)锛�1.65V 鑷� 3.6V
銆�銆�鍌虫挱寤堕伈鏅�(sh铆)闁�(tpd)锛氭渶澶� 3.5ns (鍏稿瀷鍊�)
銆�銆�宸ヤ綔婧害鑼冨湇锛�-40掳C 鑷� +125掳C
銆�銆�灏佽椤�(l猫i)鍨嬶細TSSOP, VQFN
銆�銆�杓稿叆闆绘祦(Iil)锛氭渶澶� 卤20mA
銆�銆�杓稿嚭闆绘祦(Iol/Ioh)锛氭渶澶� 卤24mA
銆�銆�闈滄厠(t脿i)鍔熻�楋細妤典綆
銆�銆�鏁�(sh霉)鎿�(j霉)閫氶亾鏁�(sh霉)閲忥細2鍊�(g猫)

鐗规��

SN74ACT8990 鎻愪緵浜嗕互涓嬮’钁楃壒鎬э細
銆�銆�1. 楂橀�熸�ц兘锛氱敱浜庨噰鐢ㄤ簡鍏堥��(j矛n)鐨勭鏌垫サ CMOS 鎶�琛�(sh霉)锛孲N74ACT8990 鐨勫偝鎾欢閬查潪甯哥煭锛岄仼鍚堢敤浜庡皪(du矛)閫熷害瑕佹眰杓冮珮鐨勬噳(y墨ng)鐢�銆�
銆�銆�2. 浣庡姛鑰楋細鍦ㄤ繚鎸侀珮鎬ц兘鐨勫悓鏅�(sh铆)锛岃┎鍣ㄤ欢鐨勯潨鎱�(t脿i)鍔熻�楅潪甯镐綆锛屾湁鍔╀簬寤堕暦(zh菐ng)闆绘睜渚涢浕瑷�(sh猫)鍌欑殑宸ヤ綔鏅�(sh铆)闁�銆�
銆�銆�3. 瀵伐浣滈浕澹撹寖鍦嶏細鏀寔寰� 1.65V 鍒� 3.6V 鐨勯浕婧愰浕澹�锛屽寮�(qi谩ng)浜嗗叾鍦ㄤ笉鍚岀郴绲�(t菕ng)鐠�(hu谩n)澧冧笅鐨勯仼鐢ㄦ��銆�
銆�銆�4. 楂樻韩绌�(w臎n)瀹氭�э細鑳藉鍦� -40掳C 鑷� +125掳C 鐨勫婧寖鍦嶅収(n猫i)绌�(w臎n)瀹氶亱(y霉n)琛岋紝閬╁悎宸ユキ(y猫)鍙婃苯杌�(ch膿)闋�(l菒ng)鍩熸噳(y墨ng)鐢�銆�
銆�銆�5. 寮�(qi谩ng)澶х殑 I/O 鑳藉姏锛氭敮鎸侀珮閬�(d谩) 卤24mA 鐨勮几鍑洪浕娴侊紝纰轰繚椹�(q奴)鍕�(d貌ng)鑳藉姏鍏呰冻銆�
銆�銆�6. 灏忓瀷灏佽锛氭彁渚涚穵婀婂瀷 TSSOP 鍜� VQFN 灏佽锛岀瘈(ji茅)鐪� PCB 绌洪枔銆�

鎳�(y墨ng)鐢�

SN74ACT8990 寤ｆ硾鎳�(y墨ng)鐢ㄤ簬浠ヤ笅闋�(l菒ng)鍩燂細
銆�銆�1. 鏁�(sh霉)鎿�(j霉)閫氫俊绯荤当(t菕ng)锛氬缍�(w菐ng)绲�(lu貌)浜ゆ彌姗�(j墨)銆佽矾鐢卞櫒绛�锛岀敤浜庨珮鏁堢殑鏁�(sh霉)鎿�(j霉)璺緫绠＄悊銆�
銆�銆�2. 瑷�(j矛)绠楁(j墨)澶栬ō(sh猫)锛氫緥濡傛墦鍗版(j墨)銆佹巸鎻忓剙绛夐渶瑕佸揩閫熸暩(sh霉)鎿�(j霉)鍌宠几?sh霉)鑴慜(sh猫)鍌�銆�
銆�銆�3. 娑堣不(f猫i)椤�(l猫i)闆诲瓙鐢�(ch菐n)鍝侊細鍖呮嫭闊抽牷瑕栭牷铏曠悊瑷�(sh猫)鍌�銆佸鐢ㄦ父鎴叉(j墨)绛�銆�
銆�銆�4. 宸ユキ(y猫)鑷嫊(d貌ng)鍖栨帶鍒讹細濡� PLC 鎺у埗鍣�銆佸偝鎰熷櫒鎺ュ彛妯″绛�銆�
銆�銆�5. 姹借粖(ch膿)闆诲瓙锛氬剙琛ㄧ洡(p谩n)椤ず銆佷俊鎭妯�(l猫)绯荤当(t菕ng)绛夊牬(ch菐ng)鏅�銆�
銆�銆�6. 宓屽叆寮忕郴绲�(t菕ng)锛氫綔鐐哄井鎺у埗鍣ㄦ垨 FPGA 鐨勫鍦嶇祫浠�锛屽(sh铆)鐝�(xi脿n)闈堟椿鐨勬暩(sh霉)鎿�(j霉)閬告搰鍔熻兘銆�

鏇夸唬鍨嬭櫉(h脿o)

SN74AHC8990, SN74LVC8990

sn74act8990鎺ㄨ枽渚涙噳(y墨ng)鍟� 鏇村>

  • 鐢�(ch菐n)鍝佸瀷铏�(h脿o)
  • 渚涙噳(y墨ng)鍟�
  • 鏁�(sh霉)閲�
  • 寤犲晢
  • 灏佽/鎵硅櫉(h脿o)
  • 瑭�(x煤n)鍍�(ji脿)

sn74act8990璩囨枡 鏇村>

  • 鍨嬭櫉(h脿o)
  • 鎻忚堪
  • 鍝佺墝
  • 闁辫涓嬭級