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鍙冩暩(sh霉)

閭忚集椤炲瀷锛�2-4 绶氳纰煎櫒/瑙ｇ⒓鍣�
銆€銆€杓稿叆寮曡叧锛�2 (A0, A1)
銆€銆€杓稿嚭寮曡叧锛�4 (Y0 - Y3)
銆€銆€浣胯兘绔細2 (G1, G2)
銆€銆€宸ヤ綔闆诲鑼冨湇锛�2V 鑷� 6V
銆€銆€鍌虫挱寤堕伈鏅傞枔锛氭渶澶� 12ns (鍏稿瀷鍊�锛屽湪 VCC=5V 涓�)
銆€銆€闈滄厠(t脿i)闆绘祦锛氭渶澶� 1渭A (鍦� VCC=4.5V 涓�)
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, PDIP

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SN74HC139A 鍏锋湁浠ヤ笅椤憲鐗规€э細
銆€銆€1. 楂橀€熼亱(y霉n)琛岃兘鍔�锛屽偝鎾欢閬叉檪闁撶煭锛岄仼鍚堥珮闋绘噳(y墨ng)鐢�銆�
銆€銆€2. 瀵浕婧愰浕澹撹寖鍦� (2V 鑷� 6V)锛岃兘澶犻仼鎳�(y墨ng)澶氱ó渚涢浕姊濅欢銆�
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銆€銆€6. 绗﹀悎 JEDEC 妯�(bi膩o)婧�(zh菙n)锛岃垏 TTL 鍜� CMOS 闆昏矾鍏煎銆�
銆€銆€7. 鍙€氶亷浣胯兘绔帶鍒惰几鍑虹媭鎱�(t脿i)锛屾彁渚涢澶栫殑鍔熻兘闈堟椿鎬�銆�
銆€銆€閫欎簺鐗规€т娇寰� SN74HC139A 鎴愮偤鏁�(sh霉)瀛楅浕璺ō(sh猫)瑷堜腑瀵︾従(xi脿n)鍦板潃瑙ｇ⒓銆佹暩(sh霉)鎿�(j霉)璺敱绛変换鍕�(w霉)鐨勭悊鎯抽伕鎿�銆�

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SN74HC139A 寤ｆ硾鎳�(y墨ng)鐢ㄤ簬闇€瑕佸湴鍧€瑙ｇ⒓鎴栦俊铏熷垎閰嶇殑鍚勭ó鍫村悎锛屽寘鎷細
銆€銆€1. 寰檿鐞嗗櫒绯荤当(t菕ng)涓殑鍦板潃璀⒓銆�
銆€銆€2. 澶氳矾寰�(f霉)鐢�/瑙ｅ京(f霉)鐢ㄦ噳(y墨ng)鐢�銆�
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