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SN74F138 鏅傞枔锛�2025/5/6 15:59:12 闁辫畝锛�24

SN74F138 鏄竴娆鹃珮閫熶笁鎱�(t脿i)杓稿嚭鐨� 1-of-8 瑙ｇ⒓鍣�/璀⒓鍣�锛屽爆浜� TTL 绯诲垪閭忚集鑺墖銆傚畠涓昏鐢ㄤ簬灏� 3 浣嶄簩閫�(j矛n)鍒惰几鍏ヤ俊铏熻綁(zhu菐n)鎻涚偤 8 姊濆柈鐛ㄧ殑杓稿嚭绶氫箣涓€銆傞€欑ó鑺墖閫氬父鐢ㄤ簬鏁�(sh霉)瀛楅浕璺ō(sh猫)瑷堜腑锛屼互瀵︾従(xi脿n)鍦板潃瑙ｇ⒓銆佹暩(sh霉)鎿�(j霉)閬告搰浠ュ強鍏朵粬鎺у埗鍔熻兘銆�
銆€銆€瑭插櫒浠跺叿鏈変笁鍊嬩娇鑳界锛圗1銆丒2 鍜� E3锛夛紝鍙互闈堟椿鍦版帶鍒跺叾宸ヤ綔鐙€鎱�(t脿i)銆傜暥(d膩ng)鎵€鏈変娇鑳界铏曚簬婵€娲荤媭鎱�(t脿i)鏅�锛岃几鍏ュ湴鍧€淇¤櫉琚纰鸿В纰煎苟鏄犲皠鍒板皪鎳�(y墨ng)鐨勮几鍑虹窔涓�銆傚鏋滀换涓€浣胯兘绔湭婵€娲�锛屽墖鎵€鏈夎几鍑哄潎閫�(j矛n)鍏ラ珮闃绘厠(t脿i)銆�

鍙冩暩(sh霉)

閭忚集椤炲瀷锛歍TL
銆€銆€闆绘簮闆诲(Vcc)锛�4.75V 鑷� 5.25V
銆€銆€宸ヤ綔婧害鑼冨湇锛�0掳C 鑷� 70掳C (鍟嗘キ(y猫)绱�), -40掳C 鑷� 85掳C (宸ユキ(y猫)绱�)
銆€銆€鍌虫挱寤堕伈鏅傞枔锛氬吀鍨嬪€� 15ns (鍦� Vcc=5V 涓�)
銆€銆€杓稿叆闆绘祦锛毬�1mA (鏈€澶у€�)
銆€銆€杓稿嚭闆绘祦锛�-16mA (浣庨浕骞�), 8mA (楂橀浕骞�)
銆€銆€灏佽褰㈠紡锛欴IP-16, SOIC-16

鐗规€�

SN74F138 鍏锋湁浠ヤ笅涓昏鐗归粸锛�
銆€銆€1. 楂橀€熸€ц兘锛氬偝鎾欢閬叉檪闁撶煭锛岄仼鐢ㄤ簬蹇€熸暩(sh霉)瀛楃郴绲�(t菕ng)銆�
銆€銆€2. 涓夋厠(t脿i)杓稿嚭锛氬厑瑷辫垏鍏朵粬绺界窔瑷�(sh猫)鍌欏叡浜窔璺�锛屽緸鑰岀啊鍖栭浕璺ō(sh猫)瑷�銆�
銆€銆€3. 澶氬€嬩娇鑳界锛氭彁渚涘皪瑙ｇ⒓鎿嶄綔鐨勭簿纰烘帶鍒�銆�
銆€銆€4. 瀵伐浣滈浕澹撹寖鍦嶏細纰轰繚鍦ㄥ悇绋浠朵笅绌�(w臎n)瀹氶亱琛�銆�
銆€銆€5. 鍟嗘キ(y猫)鍜屽伐妤�(y猫)鍏╃ó婧害绛夌礆锛氭豢瓒充笉鍚屾噳(y墨ng)鐢ㄥ牬鏅殑闇€姹�銆�
銆€銆€6. 妯�(bi膩o)婧�(zh菙n) TTL 鍏煎鎬э細鏄撲簬鑸囧叾瀹� TTL 鍣ㄤ欢闆嗘垚銆�

鎳�(y墨ng)鐢�

SN74F138 鑺墖寤ｆ硾鎳�(y墨ng)鐢ㄤ簬鍚勯鏁�(sh霉)瀛楅浕瀛愮郴绲�(t菕ng)涓�锛屽寘鎷絾涓嶉檺浜庝互涓嬪牬鏅細
銆€銆€1. 鍦板潃瑙ｇ⒓锛氱敤浜庡井铏曠悊鍣ㄧ郴绲�(t菕ng)鐨勫瓨鍎插櫒鎴栧瑷�(sh猫)鍦板潃瑙ｇ⒓銆�
銆€銆€2. 鏁�(sh霉)鎿�(j霉)閬告搰锛氭牴鎿�(j霉)杓稿叆淇¤櫉閬告搰鐗瑰畾鐨勬暩(sh霉)鎿�(j霉)閫氶亾銆�
銆€銆€3. 鎺у埗淇¤櫉鐢熸垚锛氱敓鎴愬京(f霉)闆滅殑绲勫悎閭忚集鎺у埗淇¤櫉銆�
銆€銆€4. 绺界窔鎺ュ彛锛氶€氶亷涓夋厠(t脿i)杓稿嚭瀵︾従(xi脿n)澶氳矾淇¤櫉鍏变韩鍚屼竴绺界窔銆�
銆€銆€5. 绶ㄧ▼閭忚集闄ｅ垪 (PLA) 涓殑閮ㄥ垎鍔熻兘瀵︾従(xi脿n)銆�
銆€銆€6. 鍚勭ó闇€瑕� 1-of-N 瑙ｇ⒓鐨勫牬鍚�锛屽椤ず椹�(q奴)鍕曠瓑銆�