閭忚集椤炲瀷锛�3-8绶氳��纰煎櫒/瑙ｇ⒓鍣�
銆�銆�渚涢浕闆诲��(VCC)锛�4.75V鑷�5.25V
銆�銆�宸ヤ綔婧�搴﹁寖鍦嶏��-55掳C鑷�+125掳C
銆�銆�鍌虫挱寤堕伈鏅�(sh铆)闁擄細鏈�澶�6ns
銆�銆�杓稿叆闆绘祦(IIH, IIL)锛氭渶澶�40渭A/-200渭A
銆�銆�杓稿嚭闆绘祦(IOH, IOL)锛氭渶灏�-4mA/鏈�澶�8mA
銆�銆�灏佽�濆舰寮忥細PDIP銆丼OIC銆乀SSOP

SN74AS138 鍏锋湁楂樻�ц兘鍜屼綆鍔熻�楃殑鐗归粸(di菐n)锛岄仼鍚堜簬闇�瑕佸揩閫熼熆鎳�(y墨ng)鐨勬噳(y墨ng)鐢ㄥ牬(ch菐ng)鏅�銆傚叾楂樼礆(j铆)鑲栫壒鍩哄伐钘濈⒑淇濅簡杓冧綆鐨勫偝鎾�寤堕伈鏅�(sh铆)闁撳拰杓冮珮鐨勯枊闂�(gu膩n)閫熷害銆傛�ゅ�栵紝瑭茶姱鐗囧叿鏈夊��娉涚殑宸ヤ綔婧�搴﹁寖鍦�锛岃兘澶犻仼鎳�(y墨ng)鎯″姡鐠�(hu谩n)澧冧笅鐨勪娇鐢ㄩ渶姹傘��
銆�銆�鑸囧叾浠栨��(bi膩o)婧�(zh菙n) TTL 鍣ㄤ欢鐩告瘮锛孲N74AS138 鐨勯潨鎱�(t脿i)闆绘祦鏇翠綆锛屾湁鍔╀簬闄嶄綆鏁撮珨鍔熻�椼�傚悓鏅�(sh铆)锛屽叾杓稿嚭椹�(q奴)鍕�(d貌ng)鑳藉姏杓冨挤(qi谩ng)锛屽彲浠ラ�ｆ帴澶氬��(g猫)璨�(f霉)杓夋垨椹�(q奴)鍕�(d貌ng)鍏朵粬閭忚集闁�銆�
銆�銆�鐢变簬鍏跺叿鍌欎笁鍊�(g猫)鐛�(d煤)绔嬬殑浣胯兘绔�锛岀敤鎴跺彲浠ラ�氶亷(gu貌)閫欎簺寮曡叧闈堟椿鍦版帶鍒惰姱鐗囩殑鎿嶄綔妯″紡銆備緥濡�锛屽湪鏌愪簺鎳�(y墨ng)鐢ㄤ腑锛屽彲浠ラ�氶亷(gu貌)浣胯兘绔�瀵�(sh铆)鐝�(xi脿n)鍒嗙祫璀�纰兼垨闂�(gu膩n)闁夋暣鍊�(g猫)鍣ㄤ欢鐨勫姛鑳姐��

SN74AS138 寤ｆ硾鎳�(y墨ng)鐢ㄤ簬瑷�(j矛)绠楁��(j墨)绯荤当(t菕ng)銆佸祵鍏ュ紡鎺у埗鍣ㄤ互鍙婂悇绋�鏁�(sh霉)瀛楅浕瀛愯ō(sh猫)鍌欎腑銆傚叿楂旀噳(y墨ng)鐢ㄥ牬(ch菐ng)鏅�鍖呮嫭锛�
銆�銆�1. 鍦板潃璀�纰硷細鍦ㄥ井铏曠悊鍣ㄧ郴绲�(t菕ng)涓�锛屽埄鐢� SN74AS138 灏囧湴鍧�绺界窔涓婄殑淇℃伅杞�(zhu菐n)鎻涚偤鐗瑰畾瀛樺劜(ch菙)鍣ㄦ垨澶栬ō(sh猫)鐨勯伕鎿囦俊铏�(h脿o)銆�
銆�銆�2. 淇¤櫉(h脿o)鍒嗛厤锛氬皣鍠�涓�杓稿叆淇¤櫉(h脿o)璺�鐢卞埌澶氬��(g猫)鐩�妯�(bi膩o)浣嶇疆涓�鐨勬煇涓�鍊�(g猫)銆�
銆�銆�3. 澶氳矾寰�(f霉)鐢�/瑙ｅ京(f霉)鐢�锛氬湪鏁�(sh霉)鎿�(j霉)鍌宠几閬�(gu貌)绋嬩腑锛岄�氶亷(gu貌)璀�纰煎櫒閬告搰姝ｇ⒑鐨勯�氶亾閫�(j矛n)琛屾暩(sh霉)鎿�(j霉)鐧�(f膩)閫佹垨鎺ユ敹銆�
銆�銆�4. LED 椤�绀洪��(q奴)鍕�(d貌ng)锛氱祼(ji茅)鍚堥仼鐣�(d膩ng)?sh霉)鑰愰埇顚哄◥?锛屽彲鐢�?l谩i)椹�(q奴)鍕�(d貌ng)灏忓瀷 LED 鏁�(sh霉)纰肩�℃垨鎸囩ず鐕堥櫍鍒椼��
銆�銆�5. 娓�(c猫)瑭︽脯(c猫)閲�?j墨)x鍣�锛氬湪鑷�鍕�(d貌ng)鍖栨脯(c猫)瑭﹁ō(sh猫)鍌欎腑浣滅偤闂�(gu膩n)閸电祫浠朵箣涓�锛岀敤浜庣敓鎴愮簿纰虹殑鎺у埗淇¤櫉(h脿o)銆�

SN74HC138
銆�銆�CD74HC138
銆�銆�MC14028B