74HC240DWR 鏅�(sh铆)闁擄細2025/5/20 17:12:33 闁辫畝锛�21

74HC240DWR 鏄竴绋珮鎬ц兘鐨� CMOS 涓夋厠(t脿i)绺界窔鏀剁櫦(f膩)鍣�锛屽爆浜庨鍏嗗崐灏�(d菐o)楂旓紙Fairchild Semiconductor锛夋帹鍑虹殑 74HC 绯诲垪鍣ㄤ欢銆傚畠閲囩敤鍏堥€�(j矛n)鐨勭鏌垫サ CMOS 鎶€琛�(sh霉)鍒堕€�锛屽叿鏈変綆鍔熻€楀拰楂橀枊(k膩i)闂�(gu膩n)閫熷害鐨勭壒榛�(di菐n)銆�
銆€銆€瑭茶姱鐗囧収(n猫i)閮ㄩ泦鎴愪簡8鍊�(g猫)闆欏悜涓夋厠(t脿i)绶╂矕鍣�锛屾瘡鍊�(g猫)绶╂矕鍣ㄩ兘鍙互鐛�(d煤)绔嬫帶鍒舵暩(sh霉)鎿�(j霉)鍌宠几鏂瑰悜銆傞€欎娇寰� 74HC240DWR 鍦ㄥ璺京(f霉)鐢�銆佹暩(sh霉)鎿�(j霉)绺界窔鍒囨彌绛夋噳(y墨ng)鐢ㄤ腑闈炲父鏈夌敤銆�

鍙冩暩(sh霉)

閭忚集椤炲瀷锛氫笁鎱�(t脿i)闆欏悜绺界窔鏀剁櫦(f膩)鍣�
銆€銆€閫氶亾鏁�(sh霉)锛�
銆€銆€闆绘簮闆诲VCC鑼冨湇锛�2V 鑷� 6V
銆€銆€鍌虫挱寤堕伈鏅�(sh铆)闁搕PLH/tPHL锛氱磩8ns锛堝吀鍨嬪€�锛孈 VCC=5V锛�
銆€銆€宸ヤ綔婧害鑼冨湇锛�-40掳C 鑷� +85掳C
銆€銆€灏佽褰㈠紡锛歋OIC-16, TSSOP-16
銆€銆€杓稿叆闆绘祦IIH/IL锛毬�1渭A锛堟渶澶у€硷紝@ VCC=5V锛�
銆€銆€杓稿嚭闆绘祦IOH/IOL锛毬�25mA锛堟渶澶у€�锛孈 VCC=5V锛�

鐗规€�

74HC240DWR 鍏锋湁浠ヤ笅椤憲鐗规€э細
銆€銆€1. 楂橀€熸€ц兘锛岀鍚� ANSI 妯�(bi膩o)婧�(zh菙n)鐨� TTL 杓稿嚭闆诲钩鍏煎鎬с€�
銆€銆€2. 瓒呬綆闈滄厠(t脿i)鍔熻€�锛屽湪鏁村€�(g猫)宸ヤ綔闆诲鑼冨湇鍏�(n猫i)淇濇寔绌�(w臎n)瀹氥€�
銆€銆€3. 杓稿叆寮曡叧鍏峰倷浜屾サ绠′繚璀�(h霉)鍔熻兘锛岄伩鍏嶅洜闈滈浕鏀鹃浕灏�(d菐o)鑷�?li谩n)p澹�銆�
銆€銆€4. 閫氶亷(gu貌) OE锛堣几鍑轰娇鑳斤級寮曡叧瀵�(sh铆)鐝�(xi脿n)涓夋厠(t脿i)杓稿嚭鎺у埗锛屼究浜庡湪澶氳矾寰�(f霉)鐢ㄥ牬(ch菐ng)鏅腑浣跨敤銆�
銆€銆€5. 鎻愪緵闆欏悜鏁�(sh霉)鎿�(j霉)鍌宠几鑳藉姏锛岄潏娲绘€у挤(qi谩ng)銆�
銆€銆€6. 鍙洿鎺ユ浛浠ｅ叾浠栧搧鐗岀殑鍚岄鍨嬬敘(ch菐n)鍝侊紝濡� TI 鐨� SN74HC240 绛�銆�

鎳�(y墨ng)鐢�

74HC240DWR 寤ｆ硾鎳�(y墨ng)鐢ㄤ簬鍚勭ó闆诲瓙瑷�(sh猫)鍌欎腑锛岀壒鍒ユ槸鍦ㄩ渶瑕侀€�(j矛n)琛屽璺暩(sh霉)鎿�(j霉)鍌宠几鍜岀附绶氬垏鎻涚殑鍫�(ch菐ng)鍚�銆傚父瑕�(ji脿n)鐨勬噳(y墨ng)鐢ㄥ牬(ch菐ng)鏅寘鎷細
銆€銆€1. 鏁�(sh霉)鎿�(j霉)绺界窔鍒囨彌鑸囨摯(ku貌)灞�銆�
銆€銆€2. 澶氳矾寰�(f霉)鐢ㄥ櫒瑷�(sh猫)瑷�(j矛)銆�
銆€銆€3. 宸ユキ(y猫)鎺у埗绯荤当(t菕ng)涓殑淇¤櫉(h脿o)铏曠悊銆�
銆€銆€4. 瑷�(j矛)绠楁(j墨)涓绘澘鍙婂瑷�(sh猫)鎺ュ彛銆�
銆€銆€5. 娓�(c猫)瑭﹁ō(sh猫)鍌欎腑鐨勪俊铏�(h脿o)璺敱绠＄悊銆�
銆€銆€6. 娑堣不(f猫i)椤為浕瀛愮敘(ch菐n)鍝佷腑鐨勬暩(sh霉)鎿�(j霉)娴佺鐞嗘ā濉�銆�