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74HC139鏄竴绋洐2-4绶氳纰煎櫒锛屽爆浜嶩C锛圚igh-speed CMOS锛夌郴鍒楃殑閭忚集鍣ㄤ欢銆傝┎鑺墖閲囩敤CMOS鎶�琛撳埗閫�锛屽叿鏈変綆鍔熻��銆侀珮鍣伈瀹归檺浠ュ強瀵浕婧愰浕澹撹寖鍦嶇殑鐗归粸銆�
銆�銆�鍏朵富瑕佸姛鑳芥槸灏囪几鍏ョ殑浜岄�插埗淇¤櫉杞夋彌鐐哄皪鎳夌殑4姊濊几鍑虹窔涔嬩竴锛屽苟涓旇兘澶犻�氶亷浣胯兘绔帶鍒舵槸鍚︽縺娲昏几鍑�銆傞�欑ó鐗规�т娇鍏跺唬娉涙噳鐢ㄤ簬鍦板潃瑙ｇ⒓銆佷俊铏熻矾鐢卞拰鍏朵粬闇�瑕佸璺伕鎿囩殑鎳夌敤鍫村悎銆�
閭忚集椤炲瀷锛氶洐2-4绶氳纰煎櫒
銆�銆�闆绘簮闆诲(Vcc)锛�2V 鑷� 6V
銆�銆�宸ヤ綔婧害锛�-40掳C 鑷� +85掳C
銆�銆�鍌虫挱寤堕伈鏅傞枔(tPLH/tPHL)锛氭渶澶�8ns (鍦╒cc=4.5V~5.5V)
銆�銆�杓稿叆闆绘祦(IIH/IL)锛氭渶澶�1渭A/<-1mA
銆�銆�杓稿嚭闆绘祦(IOH/IOL)锛氭渶澶�-4mA/8mA
銆�銆�灏佽褰㈠紡锛欴IP16/SOIC16
74HC139鍏锋湁鍏╁�嬬崹绔嬬殑2-4绶氳纰煎櫒妯″锛屾瘡鍊嬫ā濉婂寘鍚叐鍊嬩娇鑳界鍜屽叐鍊嬭几鍏ョ銆�
銆�銆�鐣朵娇鑳界铏曚簬婵�娲荤媭鎱�(t脿i)鏅傦紝鏍规摎(j霉)杓稿叆淇¤櫉鐨勭媭鎱�(t脿i)锛岀浉鎳夌殑杓稿嚭绶氳婵�娲诲苟杓稿嚭浣庨浕骞筹紝鑰屽叾浠栬几鍑虹窔淇濇寔楂橀浕骞�銆�
銆�銆�鐢变簬閲囩敤浜咰MOS宸ヨ棟锛岃┎鑺墖鍏锋湁杓冧綆鐨勯潨鎱�(t脿i)鍔熻�楀拰杓冮珮鐨勯浕姘ｆ�ц兘锛岄潪甯搁仼鍚堜究鏀滃紡瑷倷鍜屽叾浠栧皪鍔熻�楁晱鎰熺殑鎳夌敤銆�
銆�銆�姝ゅ锛屽叾楂樺櫔鑱插闄愪娇寰楀畠鑳藉鍦ㄥ槇闆滅殑鐠�(hu谩n)澧冧腑绌�(w臎n)瀹氶亱琛岋紝閫蹭竴姝ュ寮蜂簡绯荤当(t菕ng)鐨勫彲闈犳��銆�
74HC139閬╃敤浜庡绋浕瀛愰浕璺ō瑷堜腑锛屼緥濡傦細
銆�銆�1. 鍦板潃瑙ｇ⒓锛氱敤浜庡皣铏曠悊鍣ㄧ殑鍦板潃绺界窔淇¤櫉杞夋彌鐐哄叿楂旂殑瀛樺劜鍣ㄦ垨澶栬ō閬告搰淇¤櫉銆�
銆�銆�2. 澶氳矾寰╃敤鑸囪В寰╃敤锛氬湪鏁�(sh霉)鎿�(j霉)閫氫俊绯荤当(t菕ng)涓鐝�(xi脿n)淇￠亾鐨勯伕鎿囧拰鍒囨彌銆�
銆�銆�3. 鎺у埗淇¤櫉鍒嗛厤锛氬湪寰╅洔鐨勬帶鍒剁郴绲�(t菕ng)涓紝鐢ㄤ簬鐢熸垚涓嶅悓鐨勬帶鍒朵俊铏熶互椹呭嫊鍚勫�嬪瓙绯荤当(t菕ng)銆�
銆�銆�4. 椤ず椹呭嫊锛氶厤鍚圠ED鐭╅櫍椤ず锛岄�茶琛屾垨鍒楃殑閬告搰鎺у埗銆�
銆�銆�绺戒箣锛屼换浣曢渶瑕佸皣灏戦噺杓稿叆淇¤櫉鎿村睍鐐哄姊濊几鍑虹窔璺殑鍫村悎閮藉彲浠ヨ�冩叜浣跨敤74HC139銆�
74HCT139
銆�銆�SN74HC139
銆�銆�CD74HC139
