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銆�銆�杓稿叆闆诲钩闆绘祦(IIH, IIL)锛毬�20mA
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銆�銆�灏佽�濆舰寮忥細DIP20銆丼OIC20
銆�銆�闈滄厠(t脿i)闆绘祦(Icc)锛氭瘡闁�鈮�1渭A

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SN74AHC244
銆�銆�74HC244
銆�銆�74HCT244