SN74LVC138A 鏅傞枔锛�2025/5/6 12:07:58 闁辫畝锛�29

SN74LVC138A 鏄竴娆鹃珮鎬ц兘鐨� 3 绶�-8 绶氳纰煎櫒/瑙ｇ⒓鍣紝閲囩敤鍏堥€茬殑 CMOS 鎶€琛�(sh霉)鍒堕€�銆傝┎鍣ㄤ欢鑳藉?q奴)鈶烽交鈧簩閫插埗杓稿叆淇¤櫉 (A銆丅鍜� C) 杞�(zhu菐n)鎻涚偤鍏€嬩簰鏂ョ殑杓稿嚭淇¤櫉涔嬩竴 (Y0 鑷� Y7)銆傚畠閭勫叿鏈変笁鍊嬩娇鑳借几鍏� (G1銆丟2A 鍜� G2B)锛岀敤浜庢帶鍒惰纰煎櫒鐨勬搷浣溿€�
銆€銆€SN74LVC138A 鐨勮ō(sh猫)瑷堜娇鍏堕潪甯搁仼鍚堢敤鍦ㄥ悇绋倧杓浕璺腑锛屽挨鍏舵槸鍦ㄩ渶瑕佸皪鍦板潃鎴栨暩(sh霉)鎿�(j霉)閫茶璀⒓鐨勬噳(y墨ng)鐢ㄥ牬鍚堛€傚叾浣庡姛鑰楀拰瀵浕澹撹寖鍦嶇殑鐗归粸锛屼娇鍏舵垚鐐鸿ū澶氱従(xi脿n)浠ｆ暩(sh霉)瀛楃郴绲�(t菕ng)涓殑鐞嗘兂閬告搰銆�

鍙冩暩(sh霉)

闆绘簮闆诲(Vcc)锛�1.65V~5.5V
銆€銆€宸ヤ綔婧害鑼冨湇锛�-40掳C ~ +125掳C
銆€銆€鍌虫挱寤堕伈鏅傞枔锛氭渶澶�5.5ns (鍏稿瀷鍊�)
銆€銆€杓稿叆闆诲锛氭渶澶�5pF
銆€銆€杓稿嚭闆绘祦锛毬�24mA
銆€銆€灏佽椤炲瀷锛歍SSOP銆丼OIC

鐗规€�

SN74LVC138A 鍏锋湁浠ヤ笅涓昏鐗规€э細
銆€銆€1. 瀵浕婧愰浕澹撹寖鍦嶏紙1.65V 鑷� 5.5V锛�锛岄仼鐢ㄤ簬澶氱ó渚涢浕鐠�(hu谩n)澧冦€�
銆€銆€2. 楂橀€熼亱琛岃兘鍔�锛屽偝鎾欢閬叉檪闁撳儏鐐� 5.5ns锛堝吀鍨嬪€硷級銆�
銆€銆€3. 杓稿叆鍏煎妯�(bi膩o)婧�(zh菙n) CMOS 鍜� TTL 闆诲钩锛屽寮蜂簡鑸囧叾浠栭倧杓櫒浠剁殑鍏煎鎬с€�
銆€銆€4. 鎻愪緵楂橀﹨(q奴)鍕曡兘鍔�锛屽柈杓稿嚭鍙敮鎸� 卤24mA 鐨勯浕娴併€�
銆€銆€5. 鎵€鏈夎几鍏ュ拰杓稿嚭鍧囧叿鏈夐潨闆绘斁闆� (ESD) 淇濊鍔熻兘锛岀⒑淇濇洿楂樼殑鍙潬鎬�銆�
銆€銆€6. 杓稿嚭鍏锋湁涓夋厠(t脿i)鐗规€�锛屽湪绂佺敤鐙€鎱�(t脿i)涓嬪彲浠ユ笡灏戝共鎿�銆�
銆€銆€7. 灏忓瀷灏佽閬搁爡锛堝 TSSOP 鍜� SOIC锛夐仼鍚堥珮瀵嗗害 PCB 瑷�(sh猫)瑷�銆�

鎳�(y墨ng)鐢�

SN74LVC138A 寤ｆ硾鎳�(y墨ng)鐢ㄤ簬浠ヤ笅闋�(l菒ng)鍩燂細
銆€銆€1. 鍦板潃瑙ｇ⒓鍣細鐢ㄤ簬灏囪檿鐞嗗櫒鍦板潃绺界窔杞�(zhu菐n)鎻涚偤鐗瑰畾瑷�(sh猫)鍌欑殑閬告搰淇¤櫉銆�
銆€銆€2. 鏁�(sh霉)鎿�(j霉)璺敱锛氬皣澶氳矾杓稿叆鏁�(sh霉)鎿�(j霉)鍒嗛厤鍒版寚瀹氱殑杓稿嚭閫氶亾銆�
銆€銆€3. 鎺у埗淇¤櫉鐢熸垚锛氶€氶亷绲勫悎澶氬€嬭几鍏ヤ俊铏熺敓鎴愬京(f霉)闆滅殑鎺у埗淇¤櫉銆�
銆€銆€4. 椤ず鍣ㄩ﹨(q奴)鍕曪細鐢ㄤ簬椹�(q奴)鍕� LED 鎴� LCD 椤ず灞忎腑鐨勬閬镐俊铏�銆�
銆€銆€5. 寰�(f霉)闆滈倧杓浕璺腑鐨勫瓙妯″锛氫緥濡傚劒(y艒u)鍏堢礆绶ㄧ⒓鍣ㄣ€佸璺京(f霉)鐢ㄥ櫒绛夈€�
銆€銆€6. 宸ユキ(y猫)鎺у埗銆侀€氫俊瑷�(sh猫)鍌欎互鍙婃秷璨婚闆诲瓙鐢�(ch菐n)鍝佷腑鐨勫悇绋暩(sh霉)瀛椾俊铏熻檿鐞嗗牬鏅�銆�