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閭忚集椤炲瀷锛歍TL
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銆€銆€宸ヤ綔闆诲鑼冨湇锛�4.75V 鑷� 5.25V
銆€銆€鍌虫挱寤堕伈鏅傞枔锛氱磩 16ns锛堝吀鍨嬪€硷級
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銆€銆€杓稿嚭闆绘祦锛�+8mA/-4mA锛堟渶澶у€硷級
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SN74LS90N 鐨勪富瑕佺壒鎬у寘鎷互涓嬪咕榛烇細
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