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SN74HC139 鏄竴娆鹃洐2-4绶氳纰煎櫒/瑙ｇ⒓鍣紝灞簬74HC绯诲垪鐨勯珮閫烠MOS鍣ㄤ欢銆傝┎鑺墖鍏锋湁浣庡姛鑰楀拰楂樺櫔鑱插闄愮殑鐗归粸锛岄仼鐢ㄤ簬鍚勭ó鏁�(sh霉)瀛楅倧杓浕璺腑鐨勫湴鍧�璀⒓銆佷俊铏熼伕鎿囧拰鏁�(sh霉)鎿�(j霉)鍒嗛厤绛夋噳鐢�銆�
銆�銆�SN74HC139 鍖呭惈鍏╁�嬬崹绔嬬殑2-4绶氳纰煎櫒锛屾瘡鍊嬭纰煎櫒鏈夊叐鍊嬭几鍏ョ锛圓0 鍜� A1锛夊拰鍥涘�嬭几鍑虹锛圷0 鍒� Y3锛�銆傞�氶亷浣胯兘绔紙G1 鍜� G2锛夊彲浠ユ帶鍒惰纰煎櫒鐨勫伐浣滅媭鎱�(t脿i)銆傜暥浣胯兘绔湁鏁堟檪锛岃几鍏ヤ俊铏熻璀⒓骞惰几鍑哄埌灏嶆噳鐨勮几鍑虹銆�
闆绘簮闆诲锛�2V 鑷� 6V
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銆�銆�杓稿叆闆绘祦锛毬�1mA
銆�銆�杓稿嚭闆绘祦锛�-4mA锛堜綆闆诲钩锛夛紝4mA锛堥珮闆诲钩锛�
銆�銆�灏佽褰㈠紡锛歋OIC-16锛孭DIP-16
SN74HC139 鍏锋湁浠ヤ笅涓昏鐗规�э細
銆�銆�1. 楂橀�烠MOS鎶�琛擄紝鍌虫挱寤堕伈鏅傞枔鐭�銆�
銆�銆�2. 瀵伐浣滈浕澹撹寖鍦�锛屽吋瀹�3V銆�5V鍜屼粙浜庡叐鑰呬箣闁撶殑渚涢浕闆诲銆�
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SN74HC139 鍙唬娉涙噳鐢ㄤ簬浠ヤ笅闋樺煙锛�
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銆�銆�3. 鏁�(sh霉)瀛椾俊铏熻檿鐞嗙郴绲�(t菕ng)涓殑绶ㄧ⒓杞夋彌銆�
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銆�銆�5. 宸ユキ(y猫)鎺у埗瑷倷涓殑淇¤櫉璺敱鍙婂垎閰�銆�
銆�銆�鐢变簬鍏堕珮鍙潬鎬у拰瀵伐浣滈浕澹撹寖鍦�锛孲N74HC139 涔熷父鐢ㄤ簬渚挎敎寮忚ō鍌欏拰宓屽叆寮忕郴绲�(t菕ng)涓��
74HCT139, MC74HC139, SN74AHC139
