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SN74F138DR 鏄竴娆句笁绶氳嚦鍏窔璀⒓鍣�/瑙ｇ⒓鍣�锛屽爆浜� 74 绯诲垪楂橀�� TTL 鍣ㄤ欢銆傚畠鑳藉灏囦笁鍊嬭几鍏ヤ俊铏燂紙A銆丅 鍜� C锛夎綁鎻涚偤鍏�嬩簰鏂ョ殑杓稿嚭淇¤櫉锛圷0 鑷� Y7锛夈�傝┎鑺墖閫氶亷浣胯兘寮曡叧锛圙1銆丟2A 鍜� G2B锛夋帶鍒舵槸鍚︽縺娲昏几鍑恒�傜暥鎵�鏈変娇鑳藉紩鑵宠檿浜庢纰虹殑閭忚集鐙�鎱�(t脿i)鏅�锛岃几鍑哄皣鏍规摎(j霉)杓稿叆绲勫悎琚伕閫�銆�
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銆�銆�鍌虫挱寤堕伈鏅傞枔锛氭渶澶� 22ns
銆�銆�杓稿叆闆绘祦锛毬�1mA
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銆�銆�閭忚集绯诲垪锛�74F
SN74F138DR 鏄竴绋珮鎬ц兘鐨勪笁绶氬埌鍏窔璀⒓鍣�锛屽叿鏈変互涓嬬壒榛烇細
銆�銆�1. 浣庡姛鑰楀拰楂橀枊闂滈�熷害锛岄仼鍚堝揩閫熸暩(sh霉)瀛楃郴绲�(t菕ng)銆�
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SN74F138DR 鐨勫吀鍨嬫噳鐢ㄥ牬鏅寘鎷細
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銆�銆�3. 澶氳矾寰╃敤鑸囪В寰╃敤锛氬彲鐢ㄤ簬涓茶鍒板苟琛岀殑鏁�(sh霉)鎿�(j霉)杞夋彌銆�
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SN74LS138N, SN74HC138N
